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Gallegos C, Hodgins KA, Monro K. Temperature and sex shape reproductive barriers in a climate change hotspot. Evolution 2024; 78:906-918. [PMID: 38332537 DOI: 10.1093/evolut/qpae012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/01/2024] [Accepted: 02/07/2024] [Indexed: 02/10/2024]
Abstract
Climate change is altering species ranges and reproductive interactions in existing ranges, offering species new scope to mate and hybridize. The outcomes will depend on how environmental factors shape reproductive barriers across life stages, yet this is rarely assessed across the environments that species encounter in nature. We assess prezygotic and postzygotic barriers, and their dependence on temperature and parental sex, in species of a reef-building tubeworm (Galeolaria) from a fast-warming biodiversity hotspot in southern Australia. By replicating pure and reciprocal hybrid crosses across 5 temperatures spanning species' thermal ranges, we estimate thermal tolerance curves (defining niches) for crosses and reproductive isolation at each temperature. By also replicating crosses at 3 life stages, we partition the contributions of prezygotic barriers at fertilization, postzygotic barriers at embryogenesis, and postzygotic barriers at larval development to reproductive isolation. We show that barriers are weaker at fertilization and embryogenesis, but stronger and more temperature sensitive at larval development, as species diverge in thermal niche. Asymmetry of barriers between parental sexes, moreover, suggests a complex interplay between niche differentiation and maternal inheritance. Our findings point to a key role for temperature in reproductive isolation, but also challenges for predicting the fate of isolation in future climates.
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Affiliation(s)
- Cristóbal Gallegos
- School of Biological Sciences, Monash University, Melbourne, VIC, Australia
| | - Kathryn A Hodgins
- School of Biological Sciences, Monash University, Melbourne, VIC, Australia
| | - Keyne Monro
- School of Biological Sciences, Monash University, Melbourne, VIC, Australia
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2
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Revel M, Freund C, Mouloud M, Perrein-Ettajani H, Métais I, Bruneau M, Yakovenko N, Le Roux R, Caley T, Alogbleto W, Verrier V, Dreanno C, El Rakwe M, Châtel A. Towards the understanding of the uptake and depuration of microplastics in the ragworm Hediste diversicolor: Field and laboratory study. Mar Environ Res 2024; 196:106410. [PMID: 38422819 DOI: 10.1016/j.marenvres.2024.106410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
An important number of studies have evaluated the presence of microplastics, particles with a size below 5 mm, in aquatic organisms. Studies have shown that these fragments are widely present in the marine environment, but research on the estuarine ecosystem is still scarce. In this study, two different approaches were used to evaluate the presence and ingestion of plastic particles in the ragworm Hediste diversicolor: a field study for the environmental assessment and a laboratory experiment in controlled condition. For the environmental evaluation, ingestion of microplastics was evaluated in the ragworm H. diversicolor sampled from the mudflats of the Seine estuary (France) during March and June 2017 and 2018, on two locations: S1 and S2, both characterized by high anthropogenic pressures, and for S2 a more influential hydrodynamic component. Ingestion of microplastics was measured in ragworms tissues and in gut content (sediment) after depuration. The number of particles as well as their size, shape and color were reported and compared between sampling period and locations. Results showed the presence of a low number of particles in both worms and gut content. In gut content, 45.6% and 87.58% of samples from site S1 and S2 respectively contained plastic like particles. In worms, 41.7% (S1) and 75.8% (S2) of analysed samples contained plastic like items. The lowest mean number of particles was 0.21 ± 0.31 (S1 in June 2017) in worms' tissues, but 0.80 ± 0.90 (S1 in June 2017) in the gut content and the highest was 1.47 ± 1.41 (S2 in April 2017) while the highest number was 2.55 ± 2.06 (S2 in June 2017) in worms and gut content respectively. The majority of suspected microplastics observed were fibers (66%) and fragments (27%), but films (3.7%) foam (2.1%), and granules (0.2%) were also identified. In addition, the most polymer type observed by Raman spectroscopy was polypropylene. Furthermore, a preliminary study of the ingestion and egestion of fluorescent polyethylene (PE) microbeads in the digestive tract of ragworms was conducted after exposure through water, during 1h at 1.2 × 106 MP/mL. Results showed a rapid turnover of PE microbeads throughout the digestive tract of worms especially after exposure through water. This study revealed that microplastics are ingested by the ragworm H. diversicolor but do not seem to bioaccumulate. More research is needed to measure potential chronic effects of microplastics on physiological parameters of H. diversicolor and potential trophic transfer of microplastics.
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Affiliation(s)
- Messika Revel
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France; UniLaSalle Rennes - Ecole des métiers de l'environnement, CYCLANN, campus de Ker Lann, 35830, Bruz, France.
| | - Carla Freund
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Mohammed Mouloud
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Hanane Perrein-Ettajani
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Isabelle Métais
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Mélanie Bruneau
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Nadiia Yakovenko
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Romuald Le Roux
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Timothy Caley
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - William Alogbleto
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Valentin Verrier
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
| | - Catherine Dreanno
- IFREMER, Centre de Brest, Laboratoire Détection Capteurs et Mesures, Plouzané, F-29280, France
| | - Maria El Rakwe
- IFREMER, Centre de Brest, Laboratoire Détection Capteurs et Mesures, Plouzané, F-29280, France
| | - Amélie Châtel
- Laboratoire Biologie des Organismes, Stress, Santé, Environnement (BIOSSE), Université Catholique de l'Ouest, F-49000, Angers, France
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3
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Chen R, Cheng Y, Zhang Y, Chen J. Identification and expression analysis of Oxfibrillin gene involved in the regeneration process of Ophryotrocha xiamen (Annelida, Dorcilleidae). Dev Comp Immunol 2024; 151:105102. [PMID: 37995918 DOI: 10.1016/j.dci.2023.105102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 11/25/2023]
Abstract
Regeneration of lost body parts is a widespread phenomenon across annelids. However, the molecular inducers of the cell sources for this reparative morphogenesis have not been identified. We have identified a regeneration-related gene Oxfibrillin from the transcriptome analysis of a polychaeta, Ophryotrocha xiamen, which is found to be a well-suited model to study the mechanisms of regeneration. Fibrillins are large glycoproteins that assemble to form the microfibrils and regulate growth factors or other transfer processes. Here, we obtained the 31,274 bp genomic DNA sequences of Oxfibrillin. The coding sequence length was 5784 bp encoding 1927 amino acids with a VWD domain, EGF/cb-EGF domains, a TR domain, and a transmembrane domain. Oxfibrillin was positioned within the subgroup of invertebrates and showed low scores for homology to mammalian fibrillin. In gene expression analysis, Oxfibrillin genes were constantly upregulated during the early regeneration process and then remained stable until the formation of the complete tail which indicated that it might be a vital factor to affect posterior regeneration process. Therefore, the Oxfibrillin of O. xiamen might play important roles in the regeneration process.
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Affiliation(s)
- Ruanni Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Yunying Cheng
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Yuting Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Jianming Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China.
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4
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Nesbit KT, Shikuma NJ. Future research directions of the model marine tubeworm Hydroides elegans and synthesis of developmental staging of the complete life cycle. Dev Dyn 2023; 252:1391-1400. [PMID: 37227089 PMCID: PMC10674040 DOI: 10.1002/dvdy.628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 05/02/2023] [Accepted: 05/07/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND The biofouling marine tube worm, Hydroides elegans, is an indirect developing polychaete with significance as a model organism for questions in developmental biology and the evolution of host-microbe interactions. However, a complete description of the life cycle from fertilization through sexual maturity remains scattered in the literature, and lacks standardization. RESULTS AND DISCUSSION Here, we present a unified staging scheme synthesizing the major morphological changes that occur during the entire life cycle of the animal. These data represent a complete record of the life cycle, and serve as a foundation for connecting molecular changes with morphology. CONCLUSIONS The present synthesis and associated staging scheme are especially timely as this system gains traction within research communities. Characterizing the Hydroides life cycle is essential for investigating the molecular mechanisms that drive major developmental transitions, like metamorphosis, in response to bacteria.
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Affiliation(s)
- Katherine T. Nesbit
- Molecular Biology Division, San Diego State University, 5500 Campanile Drive, San Diego CA, 92182
| | - Nicholas J. Shikuma
- Molecular Biology Division, San Diego State University, 5500 Campanile Drive, San Diego CA, 92182
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5
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Abstract
The larvae of an annelid worm use nitric oxide signalling to activate the neural pathways needed to swim away from the harmful ultraviolet light of the sun.
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Affiliation(s)
- Maria Sachkova
- School of Biological Sciences, University of BristolBristolUnited Kingdom
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Métais I, Perrein-Ettajani H, Mouloud M, Roman C, Le Guernic A, Revel M, Tramoy R, Caupos E, Boudahmane L, Lagarde F, Le Bihanic F, Gasperi J, Châtel A. Effect of an environmental microplastic mixture from the Seine River and one of the main associated plasticizers, dibutylphthalate, on the sentinel species Hediste diversicolor. Mar Environ Res 2023; 191:106159. [PMID: 37683560 DOI: 10.1016/j.marenvres.2023.106159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
The aim of this study was to explore the adverse effects of a microplastic (MP) mixture obtained from litter accumulated in the Seine River (France) compared to those of their major co-plasticizer, dibutylphthalate (DBP), on the sentinel species Hediste diversicolor. A suite of biomarkers has been investigated to study the impacts of MPs (100 mg kg-1 sediment), DBP (38 μg kg-1 sediment) on worms compared to non-exposed individuals after 4 and 21 days. The antioxidant response, immunity, neurotoxicity and energy and respiratory metabolism were investigated using biomarkers. After 21 days, worms exposed to MPs showed an increasing aerobic metabolism, an enhancement of both antioxidant and neuroimmune responses. Energy-related biomarkers demonstrated that the energy reallocated to the defence system may come from proteins. A similar impact was depicted after DBP exposure, except for neurotoxicity. Our results provide a better understanding of the ecotoxicological effects of environmental MPs and their associated-contaminants on H. diversicolor.
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Affiliation(s)
- Isabelle Métais
- Université Catholique de L'Ouest, Laboratoire BIOSSE UCO, F-49000, Angers, France.
| | | | - Mohammed Mouloud
- Université Catholique de L'Ouest, Laboratoire BIOSSE UCO, F-49000, Angers, France
| | - Coraline Roman
- Université Catholique de L'Ouest, Laboratoire BIOSSE UCO, F-49000, Angers, France
| | - Antoine Le Guernic
- Université Catholique de L'Ouest, Laboratoire BIOSSE UCO, F-49000, Angers, France
| | - Messika Revel
- Université Catholique de L'Ouest, Laboratoire BIOSSE UCO, F-49000, Angers, France; UniLaSalle - Ecole des Métiers de L'Environnement, CYCLANN, Campus de Ker Lann, F-35170, Bruz, France
| | - Romain Tramoy
- Université Paris Est Créteil, LEESU, F-94010, Créteil, France; Ecole des Ponts, LEESU, F-77455, Champs-sur-Marne, France
| | - Emilie Caupos
- Université Paris Est Créteil, LEESU, F-94010, Créteil, France; Ecole des Ponts, LEESU, F-77455, Champs-sur-Marne, France
| | - Lila Boudahmane
- Université Paris Est Créteil, LEESU, F-94010, Créteil, France; Ecole des Ponts, LEESU, F-77455, Champs-sur-Marne, France
| | | | | | - Johnny Gasperi
- Université Gustave Eiffel, GERS-LEE, F-44344, Bouguenais, France
| | - Amélie Châtel
- Université Catholique de L'Ouest, Laboratoire BIOSSE UCO, F-49000, Angers, France
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7
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Garcia-Velasco N, Carrero JA, Urionabarrenetxea E, Doni L, Zaldibar B, Izagirre U, Soto M. Innovative in vivo and in vitro bioassays for the establishment of toxicity thresholds of pollutants in sediment quality assessment using polychaetes and their immune cells. Chemosphere 2023; 311:136935. [PMID: 36309051 DOI: 10.1016/j.chemosphere.2022.136935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 10/07/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Sediment toxicity testing has become a crucial component for assessing the risks posed by contaminated sediments and for the development of sediment quality assessment strategies. Commonly used organisms for bioassays with estuarine sediments include amphipods, Arenicola marina polychaetes and echinoids. Among the latter, the Sea Urchin Embryo test (SET) is the most widely used. However, one relevant limitation of this bioassay is the unavailability of gametes all year-round, particularly outside the natural spawning seasons. Consequently, the establishment of an appropriate and complementary model organism for a continuous assessment of sediment quality is recommended. A reliable assessment of the hazards resulting from pollutants in sediments or pore water, can be achieved with ecologically relevant species of sediment such as the polychaete Hediste diversicolor, which is widespread in estuaries and has the capacity to accumulate pollutants. The aim of this work was to develop reliable in vivo and in vitro bioassays with H. diversicolor and its coelomocytes (immune cells) to determine the toxicity thresholds of different contaminants bounded to sediments or resuspended into water. Polychaetes were exposed to sublethal concentrations of CuCl2 (in vivo) and a non-invasive method for collection of polychaetes coelomocytes was applied for the in vitro bioassay, exposing cells to a series of CuCl2 and AgNPs concentrations. Same reference toxicants were used to expose Paracentrotus lividus following the SET (ICES Nº 51; Beiras et al., 2012) and obtained toxicity thresholds were compared between the two species. In vivo exposure of polychaetes to high concentrations of Cu produced weight loss and histopathological alterations. After in vitro approaches, a significant decrease in coelomocytes viability was recorded for both toxicants, in a monotonic dose-response curve, at very short-exposure times (2 h). The toxicity thresholds obtained with polychaetes were in line with the ones obtained with the SET, concluding that their sensitivity is similar. In conclusion, in vivo and in vitro bioassays developed with H. diversicolor are accurate toxicity screenings of pollutants that could be bounded to sediments or dissolved in the pore water, and may complement the SET outside the spawning period of the echinoderms. The bioassays herein developed could be applied not only to establish the toxicity thresholds of individual compounds or mixtures, but also to assess the toxicity of field collected sediments.
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Affiliation(s)
- N Garcia-Velasco
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain.
| | - J A Carrero
- Dept. of Applied Chemistry, Faculty of Chemistry, University of the Basque Country (UPV/EHU), Manuel de Lardizabal Pasealekua 3, 20018 Donostia, Basque Country, Spain
| | - E Urionabarrenetxea
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - L Doni
- Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - B Zaldibar
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - U Izagirre
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
| | - M Soto
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Sarriena Auzoa Z/g, 48940, Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), Areatza Pasealekua, 48620, Plentzia, Basque Country, Spain
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8
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Urban-Malinga B, Jakubowska-Lehrmann M, Białowąs M, Hallmann A. Microplastics cause neurotoxicity and decline of enzymatic activities in important bioturbator Hediste diversicolor. Mar Environ Res 2022; 179:105660. [PMID: 35690022 DOI: 10.1016/j.marenvres.2022.105660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) tend to accumulate in marine sediments thus benthic fauna is particularly vulnerable to microplastic pollution. Hediste diversicolor is a widespread species in coastal marine sediments. It plays key ecological functions mostly related to bioturbation process which means sediment reworking due to the worm burrowing activity and building a network of galleries. Herein, we show that commercial plastic microspheres of two sizes (63-75 and 300-355 μm) have the potential to cause neurotoxicity in H. diversicolor. The whole-body acetylcholinesterase (AChE) activity - a common indicator of neurotoxic effect - was on average 60% lower in polychaetes exposed for 28 days to MPs served at environmentally relevant concentrations (0.08% sediment d. wt.), than in unexposed ones. Significantly reduced activities of antioxidant enzymes (SOD, CAT, GST) indicated suppression of the cellular antioxidative system in worms exposed to MPs. No changes were, however, observed in tGSH, lipid or protein oxidation measures (CBO, MDA), and in the energetic value of these polychaetes. The response was generally similar with no regard to MPs size. Only very few microspheres were found in polychaetes exposed to MPs spiked sediment. The potential role of MPs-associated pollutants as a factor responsible for observed biochemical effects, is discussed.
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Affiliation(s)
| | | | - Marcin Białowąs
- National Marine Fisheries Research Institute, Kołłątaja 1, 81-332, Gdynia, Poland
| | - Anna Hallmann
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
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9
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Abstract
The segmented worms, or annelids, are a clade within the Lophotrochozoa, one of the three bilaterian superclades. Annelids have long been models for regeneration studies due to their impressive regenerative abilities. Furthermore, the group exhibits variation in adult regeneration abilities with some species able to replace anterior segments, posterior segments, both or neither. Successful regeneration includes regrowth of complex organ systems, including the centralized nervous system, gut, musculature, nephridia and gonads. Here, regenerative capabilities of the annelid Capitella teleta are reviewed. C. teleta exhibits robust posterior regeneration and benefits from having an available sequenced genome and functional genomic tools available to study the molecular and cellular control of the regeneration response. The highly stereotypic developmental program of C. teleta provides opportunities to study adult regeneration and generate robust comparisons between development and regeneration.
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10
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Nieva LV, Peck LS, Clark MS. Variable heat shock response in Antarctic biofouling serpulid worms. Cell Stress Chaperones 2021; 26:945-954. [PMID: 34601709 PMCID: PMC8578209 DOI: 10.1007/s12192-021-01235-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/18/2021] [Accepted: 09/01/2021] [Indexed: 11/28/2022] Open
Abstract
The classical heat shock response (HSR) with up-regulation of hsp70 in response to warming is often absent in Antarctic marine species. Whilst in Antarctic fish, this is due to a mutation in the gene promoter region resulting in permanent constitutive expression of the inducible form of hsp70; there are further questions as to whether evolution to life below 0 °C has resulted in a generalised alteration to the HSR in Antarctic marine invertebrates. However, the number of species investigated to date is limited. In the first evaluation of the HSR in two spirorbid polychaetes Romanchella perrieri and Protolaeospira stalagmia, we show highly variable results of HSR induction depending on warming regimes. These animals were subjected to in situ warming (+ 1 °C and + 2 °C above ambient conditions) using heated settlement panels for 18 months, and then the HSR was tested in R. perrieri using acute and chronic temperature elevation trials. The classic HSR was not induced in response to acute thermal challenge in this species (2 h at 15 °C) and significant down-regulation of hsp90 occurred during chronic warming at 4 °C for 30 days. Analysis of heat shock protein (HSP) genes in a transcriptome study of P. stalagmia, which had been warmed in situ for 18 months, showed up-regulation of HSP70 and HSP90 family members, thus further emphasising the complexity of the response in Antarctic marine species. It is increasingly apparent that the Antarctic HSR has evolved in a species-specific manner to life in the cold.
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Affiliation(s)
- Leyre Villota Nieva
- British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, LL59 5AB, UK
| | - Lloyd S Peck
- British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK
| | - Melody S Clark
- British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK.
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11
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Revilla-i-Domingo R, Rajan VBV, Waldherr M, Prohaczka G, Musset H, Orel L, Gerrard E, Smolka M, Stockinger A, Farlik M, Lucas RJ, Raible F, Tessmar-Raible K. Characterization of cephalic and non-cephalic sensory cell types provides insight into joint photo- and mechanoreceptor evolution. eLife 2021; 10:e66144. [PMID: 34350831 PMCID: PMC8367381 DOI: 10.7554/elife.66144] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 08/04/2021] [Indexed: 12/11/2022] Open
Abstract
Rhabdomeric opsins (r-opsins) are light sensors in cephalic eye photoreceptors, but also function in additional sensory organs. This has prompted questions on the evolutionary relationship of these cell types, and if ancient r-opsins were non-photosensory. A molecular profiling approach in the marine bristleworm Platynereis dumerilii revealed shared and distinct features of cephalic and non-cephalic r-opsin1-expressing cells. Non-cephalic cells possess a full set of phototransduction components, but also a mechanosensory signature. Prompted by the latter, we investigated Platynereis putative mechanotransducer and found that nompc and pkd2.1 co-expressed with r-opsin1 in TRE cells by HCR RNA-FISH. To further assess the role of r-Opsin1 in these cells, we studied its signaling properties and unraveled that r-Opsin1 is a Gαq-coupled blue light receptor. Profiling of cells from r-opsin1 mutants versus wild-types, and a comparison under different light conditions reveals that in the non-cephalic cells light - mediated by r-Opsin1 - adjusts the expression level of a calcium transporter relevant for auditory mechanosensation in vertebrates. We establish a deep-learning-based quantitative behavioral analysis for animal trunk movements and identify a light- and r-Opsin-1-dependent fine-tuning of the worm's undulatory movements in headless trunks, which are known to require mechanosensory feedback. Our results provide new data on peripheral cell types of likely light sensory/mechanosensory nature. These results point towards a concept in which such a multisensory cell type evolved to allow for fine-tuning of mechanosensation by light. This implies that light-independent mechanosensory roles of r-opsins may have evolved secondarily.
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Affiliation(s)
- Roger Revilla-i-Domingo
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform "Single-Cell Regulation of Stem Cells", University of Vienna, Vienna BioCenterViennaAustria
| | - Vinoth Babu Veedin Rajan
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
| | - Monika Waldherr
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
| | - Günther Prohaczka
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
| | - Hugo Musset
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
| | - Lukas Orel
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
| | - Elliot Gerrard
- Division of Neuroscience & Experimental Psychology, University of ManchesterManchesterUnited Kingdom
| | - Moritz Smolka
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
- Center for Integrative Bioinformatics Vienna, Max Perutz Labs, University of Vienna and Medical University of ViennaViennaAustria
| | - Alexander Stockinger
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform "Single-Cell Regulation of Stem Cells", University of Vienna, Vienna BioCenterViennaAustria
| | - Matthias Farlik
- CeMM Research Center for Molecular Medicine of the Austrian Academy of SciencesViennaAustria
- Department of Dermatology, Medical University of ViennaViennaAustria
| | - Robert J Lucas
- Division of Neuroscience & Experimental Psychology, University of ManchesterManchesterUnited Kingdom
| | - Florian Raible
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform "Single-Cell Regulation of Stem Cells", University of Vienna, Vienna BioCenterViennaAustria
| | - Kristin Tessmar-Raible
- Max Perutz Labs, University of Vienna, Vienna BioCenterViennaAustria
- Research Platform “Rhythms of Life”, University of Vienna, Vienna BioCenterViennaAustria
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12
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Gonzalez BC, Martínez A, Worsaae K, Osborn KJ. Morphological convergence and adaptation in cave and pelagic scale worms (Polynoidae, Annelida). Sci Rep 2021; 11:10718. [PMID: 34021174 PMCID: PMC8139957 DOI: 10.1038/s41598-021-89459-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023] Open
Abstract
Across Annelida, accessing the water column drives morphological and lifestyle modifications-yet in the primarily "benthic" scale worms, the ecological significance of swimming has largely been ignored. We investigated genetic, morphological and behavioural adaptations associated with swimming across Polynoidae, using mitogenomics and comparative methods. Mitochondrial genomes from cave and pelagic polynoids were highly similar, with non-significant rearrangements only present in cave Gesiella. Gene orders of the new mitogenomes were highly similar to shallow water species, suggestive of an underlying polynoid ground pattern. Being the first phylogenetic analyses to include the holopelagic Drieschia, we recovered this species nested among shallow water terminals, suggesting a shallow water ancestry. Based on these results, our phylogenetic reconstructions showed that swimming evolved independently three times in Polynoidae, involving convergent adaptations in morphology and motility patterns across the deep sea (Branchipolynoe), midwater (Drieschia) and anchialine caves (Pelagomacellicephala and Gesiella). Phylogenetic generalized least-squares (PGLS) analyses showed that holopelagic and anchialine cave species exhibit hypertrophy of the dorsal cirri, yet, these morphological modifications are achieved along different evolutionary pathways, i.e., elongation of the cirrophore versus style. Together, these findings suggest that a water column lifestyle elicits similar morphological adaptations, favouring bodies designed for drifting and sensing.
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Affiliation(s)
- Brett C Gonzalez
- Department of Invertebrate Zoology, Smithsonian Institution, National Museum of Natural History, P.O. Box 37012, Washington, DC, USA.
| | - Alejandro Martínez
- Molecular Ecology Group (MEG), Water Research Institute (IRSA), National Research Council of Italy (CNR), Largo Tonolli, 50, Pallanza, Italy
| | - Katrine Worsaae
- Marine Biological Section, Department of Biology, University of Copenhagen, Universitetsparken 4, Copenhagen Ø, Denmark
| | - Karen J Osborn
- Department of Invertebrate Zoology, Smithsonian Institution, National Museum of Natural History, P.O. Box 37012, Washington, DC, USA
- Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA, USA
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13
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Lorenzi MC, Schleicherová D, Robles-Guerrero FG, Dumas M, Araguas A. Egg-trading worms start reciprocation with caution, respond with confidence and care about partners' quality. Sci Rep 2021; 11:10552. [PMID: 34006950 PMCID: PMC8131627 DOI: 10.1038/s41598-021-89979-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/15/2021] [Indexed: 11/08/2022] Open
Abstract
Conditional reciprocity (help someone who helped you before) explains the evolution of cooperation among unrelated individuals who take turns helping each other. Reciprocity is vulnerable to exploitations, and players are expected to identify uncooperative partners who do not return the help they received. We tested this prediction in the simultaneously hermaphroditic worm, Ophryotrocha diadema, which engages in mutual egg donations by alternating sexual roles (one worm releases' eggs and the other fertilizes them). We set up dyads with different cooperativeness expectations; partners were either the same or a different body size (body size predicts clutch size). Large worms offered larger clutches and did so sooner when paired with large rather than small partners. They also released smaller egg clutches when they started egg donations than when they responded to a partners' donation, fulfilling the prediction that a players' first move will be prudent. Finally, behavioral bodily interactions were more frequent between more size-dissimilar worms, suggesting that worms engaged in low-cost behavioral exchanges before investing in such costly moves as egg donations. These results support the hypothesis that simultaneously hermaphroditic worms follow a conditional reciprocity paradigm and solve the conflict over sexual roles by sharing the costs of reproduction via the male and the female functions.
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Affiliation(s)
- Maria Cristina Lorenzi
- Laboratoire d'Ethologie Expérimentale et Comparée, Université Sorbonne Paris Nord, 99 Avenue J.-B. Clément, 93430, Villetaneuse, France.
| | - Dáša Schleicherová
- Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Franco G Robles-Guerrero
- Laboratoire d'Ethologie Expérimentale et Comparée, Université Sorbonne Paris Nord, 99 Avenue J.-B. Clément, 93430, Villetaneuse, France
| | - Michela Dumas
- Laboratoire d'Ethologie Expérimentale et Comparée, Université Sorbonne Paris Nord, 99 Avenue J.-B. Clément, 93430, Villetaneuse, France
| | - Alice Araguas
- Laboratoire d'Ethologie Expérimentale et Comparée, Université Sorbonne Paris Nord, 99 Avenue J.-B. Clément, 93430, Villetaneuse, France
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14
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Nogueira AF, Nunes B. Acute and chronic effects of diazepam on the polychaete Hediste diversicolor: Antioxidant, metabolic, pharmacologic, neurotoxic and behavioural mechanistic traits. Environ Toxicol Pharmacol 2021; 82:103538. [PMID: 33217557 DOI: 10.1016/j.etap.2020.103538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/22/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
Pharmaceutical drugs are widespread environmental contaminants, but data about their adverse effects are still limited to a few compounds. This study analyzed the acute (96 h) and chronic (28 days) impacts of environmentally realistic levels of diazepam (acute exposure: 0.001, 0.01, 0.1, 1, 10 μg/L; chronic exposure: 0.1, 1, 10, 100, 1000 ng/L), in the polychaete Hediste diversicolor, by measuring behavioral and biochemical (catalase [CAT], glutathione-S-transferases [GSTs], cholinesterases [ChEs], glutathione peroxidase [GPx], lipid peroxidation [TBARS]) parameters. Acute exposure to diazepam altered behavioral traits, decreasing burrowing times and causing hyperactivity, whilst burrowing time increased and hypoactivity resulted after chronic exposure. All biomarkers were affected after the chronic exposure, with the exception of lipid peroxidation. Our data demonstrate that realistic levels of diazepam may impair behavioral and biochemical traits in polychaetes, suggesting that diazepam exposure presents a significant challenge to the environment that supports these organisms.
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Affiliation(s)
- Ana Filipa Nogueira
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal; Departamento de Biologia da Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Bruno Nunes
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal; Departamento de Biologia da Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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15
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Cuccaro A, De Marchi L, Oliva M, Sanches MV, Freitas R, Casu V, Monni G, Miragliotta V, Pretti C. Sperm quality assessment in Ficopomatus enigmaticus (Fauvel, 1923): Effects of selected organic and inorganic chemicals across salinity levels. Ecotoxicol Environ Saf 2021; 207:111219. [PMID: 32931966 DOI: 10.1016/j.ecoenv.2020.111219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/26/2020] [Accepted: 08/21/2020] [Indexed: 06/11/2023]
Abstract
Contamination by organic and inorganic compounds remains one of the most complex problems in both brackish and marine environments, causing potential implications for the reproductive success and survival of several broadcast spawners. Ficopomatus enigmaticus is a tubeworm polychaete that has previously been used as a model organism for ecotoxicological analysis, due to its sensitivity and ecological relevance. In the present study, the effects of five trace elements (zinc, copper, cadmium, arsenic and lead), one surfactant (sodium dodecyl sulfate, SDS) and one polycyclic aromatic hydrocarbon (benzo(a)pyrene, B(a)P) on the sperm quality of F. enigmaticus were investigated. Sperm suspensions were exposed in vitro to different concentrations of each selected contaminant under four salinity conditions (10, 20, 30, 35). Possible adverse effects on sperm function were assessed by measuring oxidative stress, membrane integrity, viability and DNA damage. Sperm quality impairments induced by organic contaminants were more evident than those induced by inorganic compounds. SDS exerted the largest effect on sperm. In addition, F. enigmaticus sperm showed high tolerance to salinity variation, supporting the wide use of this species as a promising model organism for ecotoxicological assays. Easy and rapid methods on polychaete spermatozoids were shown to be effective as integrated sperm quality parameters or as an alternative analysis for early assessment of marine and brackish water pollution.
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Affiliation(s)
- Alessia Cuccaro
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", 57128, Livorno, Italy; Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Lucia De Marchi
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", 57128, Livorno, Italy; Department of Biology, University of Pisa, Via Derna 1, 56126, Pisa, Italy
| | - Matteo Oliva
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", 57128, Livorno, Italy
| | - Matilde Vieira Sanches
- Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Rosa Freitas
- Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Valentina Casu
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Gianfranca Monni
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Vincenzo Miragliotta
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Carlo Pretti
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", 57128, Livorno, Italy; Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy.
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Słowiński J, Surmik D, Duda P, Zatoń M. Assessment of serpulid-hydroid association through the Jurassic: A case study from the Polish Basin. PLoS One 2020; 15:e0242924. [PMID: 33296393 PMCID: PMC7725407 DOI: 10.1371/journal.pone.0242924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/11/2020] [Indexed: 11/25/2022] Open
Abstract
The coexistence of sessile, tube-dwelling polychaetes (serpulids) and hydroids, has been investigated. Serpulid tubes bearing traces after hydroids are derived from different stratigraphic intervals spanning the Middle and Upper Jurassic, the rocks of which represent the diverse paleoenvironments of the Polish Basin. Although fossil colonial hydroids classified under the species Protulophila gestroi are a commonly occurring symbiont of these polychaetes during the Late Cretaceous and Cenozoic, they seem to be significantly less frequent during the Jurassic and limited to specific paleoenvironments. The hydroids described here are represented by traces after a thin stolonal network with elongated polyp chambers that open to the outer polychaete tube's surface with small, more or less subcircular apertures. Small chimney-like bulges around openings are an effect of the incorporation of the organism by in vivo embedment (bioclaustration) within the outer layers of the calcareous tube of the serpulid host. Considering the rich collection of well-preserved serpulid tubes (>3000 specimens), the frequency of bioclaustrated hydroids is very low, with an infestation percentage of only 0.6% (20 cases). It has been noticed that only specimens of the genus Propomatoceros from the Upper Bajocian, Lower Bathonian, Middle Bathonian, and Callovian have been found infested. However, the majority of bioclaustrated hydroids (17 cases) have been recorded in the Middle Bathonian serpulid species Propomatoceros lumbricalis coming from a single sampled site. Representatives of other genera are not affected, which is congruent with previous reports indicating that Protulophila gestroi was strongly selective in the choice of its host. A presumably commensal relationship is compared with the recent symbiosis between the hydroids of the genus Proboscidactyla and certain genera of sabellid polychaetes.
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Affiliation(s)
- Jakub Słowiński
- Institute of Earth Sciences, University of Silesia in Katowice, Sosnowiec, Poland
| | - Dawid Surmik
- Institute of Earth Sciences, University of Silesia in Katowice, Sosnowiec, Poland
| | - Piotr Duda
- Faculty of Computer Science and Materials Science, University of Silesia in Katowice, Chorzów, Poland
| | - Michał Zatoń
- Institute of Earth Sciences, University of Silesia in Katowice, Sosnowiec, Poland
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Nogueira AF, Nunes B. Effects of low levels of the antibiotic ciprofloxacin on the polychaete Hediste diversicolor: biochemical and behavioural effects. Environ Toxicol Pharmacol 2020; 80:103505. [PMID: 33002593 DOI: 10.1016/j.etap.2020.103505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
The release of pharmaceutical chemicals in the biosphere can have unpredictable ecological consequences, and knowledge concerning their putative toxic effects is still scarce. One example of a widely used pharmaceutical that is present in the aquatic environment is ciprofloxacin. Previous indications suggest that this drug may exert several adverse effects on exposed biota, but the characterization of a full ecotoxicological response to this drug is far from complete, especially in estuarine ecosystems. This work aimed to characterize the acute and chronic effects of ciprofloxacin in the polychaete Hediste diversicolor (Annelida: Polychaeta), exposed to environmentally relevant levels of this drug, close to the real concentrations of this pharmaceutical in surface waters. The adopted toxic endpoints were behavioral parameters, combined with a biomarker-based approach (quantification of the activities of catalase (CAT), glutathione-S-transferase (GSTs), cholinesterases (ChEs), glutathione peroxidase (GPx), and lipid peroxidation levels. Exposure to ciprofloxacin caused effects on behavioural traits, such as an increase in burrowing times and hyperactivity, alongside alterations in biomarkers, including a significant increase in CAT activity following acute exposure. In addition, and after both acute and chronic exposure, lipid peroxidation was reduced, while AChE activities were enhanced. It was possible to ascertain the occurrence of pro-oxidative alterations following exposure to low levels of ciprofloxacin, which were counteracted by the triggering of CAT activity. The meaning of the enhancement of AChE activity is not clear, but it appears to be linked with the observed behavioural changes, and may have been associated with the stimulation of the behavioural traits. These data strongly suggest that the presence of ciprofloxacin in estuarine areas is not without risks, and exposed biota, namely polychaete species, are likely to have their ecological roles affected, thereby compromising the chemical, physical and microbiological stability of sediments, which in turn alters nutrient cycles.
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Affiliation(s)
- Ana Filipa Nogueira
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Bruno Nunes
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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18
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Joo MS, Choi KM, Cho DH, Choi HS, Min EY, Han HJ, Cho MY, Bae JS, Park CI. The molecular characterization, expression analysis and antimicrobial activity of theromacin from Asian polychaeta (Perinereis linea). Dev Comp Immunol 2020; 112:103773. [PMID: 32634521 DOI: 10.1016/j.dci.2020.103773] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
Antimicrobial peptides (AMPs) are molecular factors in innate immunity and are believed to play a key role in invertebrate host defence. We identified theromacin (TM) from an Asian polychaeta, Perinereis linea, using de novo RNA-seq analysis. TM, a typical AMP of invertebrates, is a cysteine-rich AMP with five disulfide bonds consisting of ten cysteine residues. In gene expression analysis, TM genes were constantly upregulated after lipopolysaccharide (LPS) stimulation. In contrast, after peptidoglycan (PGN) stimulation, it was upregulated initially and downregulated after 12 h. We synthesized a peptide based on the macin AMP in the TM amino acid sequence. The synthetic peptide showed antibacterial activity against some Gram-positive and Gram-negative bacteria. Therefore, the AMPs of P. linea might have broad roles in host defence and exhibit different degrees of activity.
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Affiliation(s)
- Min-Soo Joo
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea
| | - Kwang-Min Choi
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea
| | - Dong-Hee Cho
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea
| | - Hye-Sung Choi
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Eun Young Min
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Hyun-Ja Han
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Mi Young Cho
- Pathology Research Division, National Institute of Fisheries Science, 408-1 Sirang-ri, Gijang-up, Gijang-gun, Busan, 46083, Republic of Korea
| | - Jin-Sol Bae
- National Fishery Products Quality Management Service (NFQS), 337, Yeongdo-gu, Busan, Republic of Korea
| | - Chan-Il Park
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea.
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Li Y, Jiang J, Li W, Zhu X, Zhang X, Jiang F. Volatile DBPs contributed marginally to the developmental toxicity of drinking water DBP mixtures against Platynereis dumerilii. Chemosphere 2020; 252:126611. [PMID: 32443275 DOI: 10.1016/j.chemosphere.2020.126611] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Halogenated disinfection byproducts (DBPs) are formed during chlorine disinfection of drinking water. The complicated natural organic matter in source water causes the formation of an even more complicated mixture of DBPs. To evaluate the toxicity of a DBP mixture in a disinfected water sample, the sample needs to be pretreated in order to attain an observable acute adverse effect in the toxicity test. During sample pretreatment, volatile DBPs including trihalomethanes, haloacetonitriles and haloketones may be lost, which could affect the toxicity evaluation of the DBP mixture. In this study, we intentionally prepared "concentrated" simulated drinking water samples, which contained sufficiently high levels of volatile and nonvolatile DBPs and thus enabled directly evaluating the toxicity of the DBP mixtures without sample pretreatment. Specifically, the natural organic matter and bromide concentrations and the chlorine dose in the concentrated water samples were 250 times higher than those in a typical drinking water sample. Each concentrated water sample was divided into two aliquots, and one of them was nitrogen sparged to eliminate volatile DBPs; then, both aliquots were used directly in a well-established developmental toxicity test. No significant difference (p > 0.10) was found between the developmental toxicity indexes of each concentrated water sample without and with nitrogen sparging, indicating that the contribution of volatile DBPs to the developmental toxicity of the DBP mixture might be marginal. A reasonable interpretation is that nonvolatile halogenated DBPs (especially the aromatic ones) in the DBP mixture could be the major developmental toxicity contributor that warrants more attention.
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Affiliation(s)
- Yu Li
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
| | - Jingyi Jiang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Wanxin Li
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiaohu Zhu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Xiangru Zhang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Feng Jiang
- School of Environment, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
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20
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Revel M, Yakovenko N, Caley T, Guillet C, Châtel A, Mouneyrac C. Accumulation and immunotoxicity of microplastics in the estuarine worm Hediste diversicolor in environmentally relevant conditions of exposure. Environ Sci Pollut Res Int 2020; 27:3574-3583. [PMID: 30353435 DOI: 10.1007/s11356-018-3497-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/16/2018] [Indexed: 05/23/2023]
Abstract
The presence of plastic debris < 5 mm called microplastics (MPs) which results mainly from macroplastic's fragmentation has been reported in aquatic ecosystems. Several studies have shown that MPs are persistent and their accumulation was observed in various aquatic species. However, the majority of studies focused on marine species, and much less on continental and estuarine biota. The goal of the present study was to investigate the effects of a mixture of two types of MPs (polyethylene and polypropylene), frequently found in natural environments, towards the ragworm Hediste diversicolor to determine their accumulation in organisms exposed through the water phase or sediment. Two concentrations of exposure were selected for medium and heavily contaminated areas reported for water phase (10 and 100 μg/L) and sediment (10 and 50 mg of MPs/kg). To study the potential toxic effect of MPs, immune parameters were selected since they are involved in many defense mechanisms against xenobiotics or infectious agents. An average number of MP items/worm ranging from 0 to 2.5 and from 1 to 36 were identified in animals exposed to the lowest and the highest concentration of MPs through water exposure. In worms exposed through sediment, less than 1 MP/worm was found and a greater number of particles were identified in depurated sediment. For immunotoxic impact, MP exposure induced a decrease in coelomocytes viability, but no alteration of phagocytosis activity, phenoloxydase, and acid phosphatase was measured. This study brings new results on the potential accumulation and immunotoxicity of MPs for the ragworm H. diversicolor who plays a key role in the structure and functioning of estuarine ecosystem.
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Affiliation(s)
- Messika Revel
- Laboratoire Mer, Molécules, Santé (MMS EA2160), Université Catholique de l'Ouest, Angers, France.
| | - Nadiia Yakovenko
- Laboratoire Mer, Molécules, Santé (MMS EA2160), Université Catholique de l'Ouest, Angers, France
| | - Timothy Caley
- Laboratoire Mer, Molécules, Santé (MMS EA2160), Université Catholique de l'Ouest, Angers, France
| | - Catherine Guillet
- Plateforme d'Analyse Cellulaire et Moléculaire, IBS-IRIS-Université d'Angers, Angers, France
| | - Amélie Châtel
- Laboratoire Mer, Molécules, Santé (MMS EA2160), Université Catholique de l'Ouest, Angers, France
| | - Catherine Mouneyrac
- Laboratoire Mer, Molécules, Santé (MMS EA2160), Université Catholique de l'Ouest, Angers, France
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Karaseva NP, Rimskaya-Korsakova NN, Gantsevich MM, Malakhov VV. Obturacula of Vestimentifera (Annelida, Siboglinidae) Are Homological to the Dorsal Lips of the Polychaete of the Family Sabellidae. Dokl Biol Sci 2020; 490:16-18. [PMID: 32342320 DOI: 10.1134/s0012496620010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 06/11/2023]
Abstract
We have conducted comparative analysis of the structure of the dorsal lips of the polychaete Eudistylia polymorpha from the family Sabellidae and the obturacula of Oasisia alvinae (Vestimentifera). It has been concluded that the obturacula of Vestimentifera are homologs of the dorsal lips of Polychaete from the family Sabellidae. It has been suggested that the head lobe of siboglinids of the subfamily Frenulata is homologous to the fused obturacula of Vestimentifera.
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Marques B, Lillebø AI, Domingues MDRM, Saraiva JA, Calado R. Effect of High-Pressure Processing (HPP) on the Fatty Acid Profile of Different Sized Ragworms ( Hediste diversicolor) Cultured in an Integrated Multi-Trophic Aquaculture (IMTA) System. Molecules 2019; 24:molecules24244503. [PMID: 31835345 PMCID: PMC6943615 DOI: 10.3390/molecules24244503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 11/26/2022] Open
Abstract
Ragworms (Hediste diversicolor) cultured under integrated multi-trophic aquaculture (IMTA) conditions display an improved fatty acids (FA) profile than conspecifics from the wild, thus being more suitable for maturation diets of marine fish and shrimp. Nonetheless, their use may represent a potential pathway for pathogens. The objective of the present study was to determine if high-pressure processing (HPP), as an approach to safeguard microbiological safety, could promote significant shifts on the FA profiles of different sized ragworms. An analysis of similarities (ANOSIM) revealed the existence of significant differences in the FA profile and lipid quality indexes (atherogenicity (AI), thrombogenicity (TI) and polyene (PI)) of control and HPP treated ragworms of all tested sizes (small, medium and large). Saturated (SFA) and monounsaturated FA (MUFA) increased after HPP, while polyunsaturated FA (PUFA; FA with 2 or 3 double bonds) and highly unsaturated FA (HUFA; FA with ≥ 4 double bonds) decreased. The amount of docosahexaenoic acid (DHA) in polychaetes exposed to HPP decreased an average of 25%, when compared with the levels recorded in control groups. The values of PI significantly decreased after HPP, while those of AI and TI displayed a significant increase. Despite the shifts in the FA profile of ragworms exposed to HPP, these still display a superior profile to that of wild specimens, namely the presence of DHA. Therefore, HPP can be considered as a suitable approach to safeguard the biosecurity of cultured polychaetes, without compromising their nutritional value, and support the principles of circular economy through the use of IMTA.
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Affiliation(s)
- Bruna Marques
- Department of Biology & CESAM & ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
| | - Ana Isabel Lillebø
- Department of Biology & CESAM & ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
- Correspondence: (A.I.L.); (R.C.); Tel.: +(351)-234-370-779 (A.I.L.)
| | - Maria do Rosário M. Domingues
- Department of Chemistry & CESAM & ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
| | - Jorge A. Saraiva
- Department of Chemistry & QOPNA & LAQV-REQUIMTE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
| | - Ricardo Calado
- Department of Biology & CESAM & ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal;
- Correspondence: (A.I.L.); (R.C.); Tel.: +(351)-234-370-779 (A.I.L.)
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Müller L, Nunes SM, Villar N, Gelesky M, Tavella RA, da Silva Junior FMR, Fattorini D, Regoli F, Monserrat JM, Ventura-Lima J. Genotoxic effect of dimethylarsinic acid and the influence of co-exposure to titanium nanodioxide (nTiO 2) in Laeonereis culveri (Annelida, Polychaeta). Sci Total Environ 2019; 685:19-27. [PMID: 31170592 DOI: 10.1016/j.scitotenv.2019.05.259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/17/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Few data are available about the effect of dimethylated forms (DMA) on aquatic organisms. As rarely a contaminant occurs alone, studies evaluating the combined effect of different contaminants in aquatic organisms are needed. In fact, the presence of nanomaterials, such as titanium dioxide nanoparticles (nTiO2), in the aquatic environment is now a reality due to its intensive production and use. So, this study evaluated the toxicological effects of DMA in an acute exposure condition and considered the potential influence of nTiO2 on the effects induced by DMA in the polychaete, Laeonereis culveri. The animals were exposed over 48 h to DMA (50 and 500 μg/l) alone or in combination with nTiO2 (1 mg/l). Biochemical parameters such as concentration of reactive oxygen species (ROS), glutathione-S-transferase (GST) activity, levels of reduced glutathione levels (GSH) and macromolecular (lipid and DNA) damage were evaluated, as well the DNA repair system. In addition, the accumulation of total As and the chemical speciation of the metalloid in the organisms was determined. The results showed that: (1) only the group exposed to 500 μg of DMA/l accumulated As and when co-exposed to nTiO2, this accumulation was not observed. (2) The levels of ROS increased in the group exposed to 50 μg/l of DMA alone and the effect was reversed when this group was co-exposed to nTiO2 (3) None of the treatments showed altered GST activity or GSH levels. (4) All groups that received nTiO2 (alone or in combination with DMA) showed lipid peroxidation. (5) The exposure to DMA (both concentrations) alone or in combination with nTiO2 induced DNA damage in L. culveri. These results showed that DMA exhibits a genotoxic effect and that co-exposure to nTiO2 had an influence on its toxicity. So the occurrence of both contaminants simultaneously can represent a threat to aquatic biota.
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Affiliation(s)
- Larissa Müller
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil.
| | - Silvana Manske Nunes
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Nágila Villar
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil
| | - Marcos Gelesky
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Química Tecnológica e Ambiental-FURG, Brazil
| | | | - Flávio Manoel Rodrigues da Silva Junior
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências da Saúde-FURG, Brazil
| | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - José Maria Monserrat
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil
| | - Juliane Ventura-Lima
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas - FURG, Rio Grande, RS, Brazil.
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Vellwock AE, Fu J, Meng Y, Thiyagarajan V, Yao H. A data-driven approach to predicting the attachment density of biofouling organisms. Biofouling 2019; 35:832-839. [PMID: 31570009 DOI: 10.1080/08927014.2019.1667982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/08/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
The attachment efficiency of biofouling organisms on solid surfaces depends on a variety of factors, including fouler species, nutrition abundance, flow rate, surface morphology and the stiffness of the solid to which attachment is to be made. So far, extensive research has been carried out to investigate the effects of these factors on the attachment of various fouling species. However, the results obtained are species-dependent and scattered. There is no universal rule that can be applied to predict the attachment efficiency of different species. To solve this problem, the authors carried out meta-analysis of the effects of ten selected factors on attachment efficiency, resulting in a universal correlation between the attachment density and the selected factors, which was validated by attachment tests of tubeworms on PDMS surfaces. The results provide a practical approach to predicting the attachment efficiency of fouling organisms and should be of great value in the design of anti-biofouling materials.
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Affiliation(s)
- Andre E Vellwock
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Jimin Fu
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Yuan Meng
- The Swire Institute of Marine Sciences and School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - V Thiyagarajan
- The Swire Institute of Marine Sciences and School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Haimin Yao
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
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25
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Meng Y, Li C, Li H, Shih K, He C, Yao H, Thiyagarajan V. Recoverable impacts of ocean acidification on the tubeworm, Hydroides elegans: implication for biofouling in future coastal oceans. Biofouling 2019; 35:945-957. [PMID: 31687858 DOI: 10.1080/08927014.2019.1673376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 06/10/2023]
Abstract
Ocean uptake of anthropogenic CO2 causes ocean acidification (OA), which not only decreases the calcification rate, but also impairs the formation of calcareous shells or tubes in marine invertebrates such as the dominant biofouling tubeworm species, Hydroides elegans. This study examined the ability of tubeworms to resume normal tube calcification when returned to ambient pH 8.1 from a projected near-future OA level of pH 7.8. Tubeworms produced structurally impaired and mechanically weaker calcareous tubes at pH 7.8 compared to at pH 8.1, but were able to recover when the pH was restored to ambient levels. This suggests that tubeworms can physiologically recover from the impacts of OA on tube calcification, composition, density, hardness and stiffness when returned to optimal conditions. These results help understanding of the progression of biofouling communities dominated by tubeworms in future oceans with low pH induced by OA.
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Affiliation(s)
- Yuan Meng
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Chaoyi Li
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Hangkong Li
- Department of Civil Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Chong He
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Haimin Yao
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - V Thiyagarajan
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
- State Key Laboratory for Marine Pollution, Hong Kong SAR, China
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26
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Jakubowska M, Urban-Malinga B, Otremba Z, Andrulewicz E. Effect of low frequency electromagnetic field on the behavior and bioenergetics of the polychaete Hediste diversicolor. Mar Environ Res 2019; 150:104766. [PMID: 31404727 DOI: 10.1016/j.marenvres.2019.104766] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
The aim of the present study was to determine the effect of an electromagnetic field (EMF) of value typically recorded in the vicinity of submarine cables (50 Hz, 1 mT) on the behavior and bioenergetics of the polychaete Hediste diversicolor. No avoidance or attraction behavior to EMF was shown, but the burrowing activity of H. diversicolor was enhanced in EMF treatment, indicating a stimulating effect on bioturbation potential. The polychaete maintained a positive energy balance and high amount (85% of assimilated energy) of energy available for individual production (scope for growth) after exposure to EMF. Food consumption and respiration rates were not affected but ammonia excretion rate was significantly reduced in EMF-exposed animals compared to the control conditions (geomagnetic field). The mechanisms behind this effect remain, however, unclear. This is the first study demonstrating the effects of environmentally realistic EMF value on the behavior and physiology of marine invertebrates, thus there is a need for more research.
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Affiliation(s)
- Magdalena Jakubowska
- Department of Fisheries Oceanography and Marine Ecology, National Marine Fisheries Research Institute, Kołłątaja 1, 81-332, Gdynia, Poland.
| | - Barbara Urban-Malinga
- Department of Fisheries Oceanography and Marine Ecology, National Marine Fisheries Research Institute, Kołłątaja 1, 81-332, Gdynia, Poland
| | - Zbigniew Otremba
- Department of Physics, Gdynia Maritime University, Morska 81-87, 81-225, Gdynia, Poland
| | - Eugeniusz Andrulewicz
- Department of Fisheries Oceanography and Marine Ecology, National Marine Fisheries Research Institute, Kołłątaja 1, 81-332, Gdynia, Poland
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27
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da Fonseca TG, Abessa DMS, Bebianno MJ. Effects of mixtures of anticancer drugs in the benthic polychaete Nereis diversicolor. Environ Pollut 2019; 252:1180-1192. [PMID: 31252116 DOI: 10.1016/j.envpol.2019.05.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 05/24/2023]
Abstract
The increasing consumption of anticancer drugs through single and/or combinatory chemotherapy worldwide raised concern regarding their toxicity burden in coastal zones. The toxicity of a mixture of three compounds involving the drugs cisplatin (CisPt), cyclophosphamide (CP) and tamoxifen (TAM) was determined on the marine polychaete Nereis diversicolor exposed to an increasing range of their concentrations, respectively: Mix A: 0.1 + 10 + 0.1 ng L-1; Mix B: 10 + 100 + 10 ng L-1; Mix C: 100 + 500 + 25 ng L-1; Mix D: 100 + 1000 + 100 ng L-1. Different endpoints were assessed, including disturbance in the burrowing behaviour, neurotoxicity (acetylcholinesterase - AChE activity), antioxidant enzymes (superoxide dismutase - SOD; catalase - CAT; selenium-dependent glutathione peroxidase - Se-GPx and total glutathione peroxidases T-GPx activities), biotransformation metabolism (glutathione-S-transferases - GST), lipid peroxidation (LPO) and genotoxicity (DNA damage). Biological effects of the mixtures of anticancer compounds on N. diversicolor were compared with previous studies about effects on the same biological model under single-drug exposure conducted with the same molecules. Regarding SOD activity, TAM showed an antagonist effect over CisPt and CP in mixtures C and D. In Mix D, there was a synergistic effect of TAM and CisPt that inhibited CAT activity and an additive interaction of CisPt and CP on the Phase II biotransformation enzyme. Drugs in Mix A also suppressed polychaetes' GST activity, although different from the respective single-drug responses, besides able to induce T-GPx activity, that was not sufficient to avoid oxidative damage and mid-grade DNA damage. Due to the absence of burrowing impairment in Mix A, mechanisms involved in neurotoxicity were other than the one driven by AChE alterations. At the intermediary concentrations (Mix B and C), only LPO occurred. Data from drugs individually may not predict the risks provided by mixtures.
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Affiliation(s)
- Tainá Garcia da Fonseca
- Centro de Investigação Marinha e Ambiental (CIMA), Universidade do Algarve, Campus de Gambelas, Faro, 8005-139, Portugal; NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, Universidade Estadual Paulista (UNESP), Campus do Litoral Paulista, São Vicente, SP, 11330-900, Brazil
| | - Denis M S Abessa
- NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, Universidade Estadual Paulista (UNESP), Campus do Litoral Paulista, São Vicente, SP, 11330-900, Brazil
| | - Maria João Bebianno
- Centro de Investigação Marinha e Ambiental (CIMA), Universidade do Algarve, Campus de Gambelas, Faro, 8005-139, Portugal.
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Pechenik JA, Levy M, Allen JD. Instant Ocean Versus Natural Seawater: Impacts on Aspects of Reproduction and Development in Three Marine Invertebrates. Biol Bull 2019; 237:16-25. [PMID: 31441700 DOI: 10.1086/705134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Marine invertebrate larvae have often been reared in artificial rather than natural seawater, either for convenience or to avoid potentially confounding effects of unknown contaminants. This study sought to determine the impact of artificial seawater on various aspects of development for three marine invertebrate species. We examined the impact of Instant Ocean on growth, survival, and fecundity of the deposit-feeding polychaete Capitella teleta at 2 salinities: 24 and 34 ppt; the impact on survival, growth rate, and time to metamorphic competence for the slipper limpet Crepidula fornicata; and the impact on larval growth for the sea star Asterias forbesi. Juveniles of C. teleta survived better in natural seawater than in Instant Ocean at both salinities but at the higher salinity grew more quickly in Instant Ocean; fecundity was not significantly affected by the type of seawater used at either salinity. Using Instant Ocean in place of natural seawater had no pronounced impact on the survival of C. fornicata larvae or on how long it took them to become competent to metamorphose; however, larvae grew somewhat more quickly in Instant Ocean than in natural seawater for the first 4 days of development, but by day 7 they were about 4.5% larger if they had been reared in seawater. The type of seawater used affected the growth of A. forbesi larvae, with larvae growing significantly more slowly in Instant Ocean than in natural seawater, no matter how growth was measured. In conclusion, our results suggest that although Instant Ocean may be a reasonable substitute for natural seawater for work with some species, using it may affect experimental outcomes in some aspects of work with other species.
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Hochstein R, Zhang Q, Sadowsky MJ, Forbes VE. The deposit feeder Capitella teleta has a unique and relatively complex microbiome likely supporting its ability to degrade pollutants. Sci Total Environ 2019; 670:547-554. [PMID: 30909032 DOI: 10.1016/j.scitotenv.2019.03.255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/12/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Capitella teleta is a sediment-dwelling marine polychaete that is often found in high densities in association with organic matter and pollutants. While C. teleta has been reported to transform a variety of aromatic hydrocarbons, the mechanisms by which degradation occurs are unknown. Moreover, there is continuing debate on the role of host and microbiota in degradation activity. The aims of this study were to characterize the gut microbiome of C. teleta and to identify microbiota that could potentially play a role in degradation of organic matter and aromatic hydrocarbons. Sequencing analysis of the 16S rRNA genes from the intestinal tracts of adult worms revealed a unique microbiome that was distinct from that of the worm's sediment food source and fecal pellets. About 66% of the 775 identified OTUs from the C. teleta gut microbiome were found to be unique to the worm and displayed high inter-individual variability. The gut microbiome was dominated by members of the genera Arcobacter, Pseudoalteromonas, Methylobacterium, and Propionibacterium. Functional analyses of microbiota revealed that hydrocarbon treatment led to a proliferation of gene classes involved in chemoheterotrophy and aromatic compound degradation. Of the 18 most abundant taxa identified, 50% were members of genera containing hydrocarbon (PAH)-degrading members, including Acinetobacter, Thalassotalea, and Achromobacter. Data obtained in this study will be useful to understand the biology of this marine polychaete and to elucidate the role that gut bacteria play in worm catabolism and the transformation of sediment organic pollutants.
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Affiliation(s)
- Rebecca Hochstein
- Department of Ecology, Evolution, and Behavior, University of Minnesota, United States of America; BioTechnology Institute, University of Minnesota, United States of America
| | - Qian Zhang
- BioTechnology Institute, University of Minnesota, United States of America
| | - Michael J Sadowsky
- BioTechnology Institute, University of Minnesota, United States of America; Department of Soil, Water and Climate, University of Minnesota, United States of America; Department of Plant and Microbial Biology, University of Minnesota, United States of America.
| | - Valery E Forbes
- Department of Ecology, Evolution, and Behavior, University of Minnesota, United States of America.
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Cozzoli F, Gjoni V, Del Pasqua M, Hu Z, Ysebaert T, Herman PMJ, Bouma TJ. A process based model of cohesive sediment resuspension under bioturbators' influence. Sci Total Environ 2019; 670:18-30. [PMID: 30901572 DOI: 10.1016/j.scitotenv.2019.03.085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/09/2019] [Accepted: 03/06/2019] [Indexed: 06/09/2023]
Abstract
Macrozoobenthos may affect sediment stability and erodibility via their bioturbating activities, thereby impacting both the short- and long-term development of coastal morphology. Process-based models accounting for the effect of bioturbation are needed for the modelling of erosion dynamics. With this work, we explore whether the fundamental allometric principles of metabolic activity scaling with individual and population size may provide a framework to derive general patterns of bioturbation effect on cohesive sediment resuspension. Experimental flumes were used to test this scaling approach across different species of marine, soft-sediment bioturbators. The collected dataset encompasses a range of bioturbator functional diversity, individual densities, body sizes and overall population metabolic rates. Measurements were collected across a range of hydrodynamic stress from 0.02 to 0.25 Pa. Overall, we observed that bioturbators are able to slightly reduce the sediment resuspension at low hydrodynamic stress, whereas they noticeably enhance it at higher levels of stress. Along the whole hydrodynamic stress gradient, the quantitative effect of bioturbators on sediment resuspension can be efficiently described by the overall metabolic rate of the bioturbating benthic communities, with significant variations across the bioturbators' taxonomic and functional diversity. One of the tested species (the gallery-builder Polychaeta Hediste diversicolor) had an effect that was partially deviating from the general trend, being able to markedly reduce sediment resuspension at low hydrodynamic stress compared to other species. By combining bioturbators' influence with hydrodynamic force, we were able to produce a process-based model of biota-mediated sediment resuspension.
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Affiliation(s)
- Francesco Cozzoli
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, University of the Salento - 73100, Lecce, Italy; Department of Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research (NIOZ) and Utrecht University, 4401 NT Yerseke, The Netherlands.
| | - Vojsava Gjoni
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, University of the Salento - 73100, Lecce, Italy
| | - Michela Del Pasqua
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, University of the Salento - 73100, Lecce, Italy
| | - Zhan Hu
- School of Marine Science, Sun Yat-sen University, 510275 Guangzhou, China; (h)Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China.
| | - Tom Ysebaert
- Wageningen Marine Research, Wageningen University and Research, P.B. 77, 4400 AB Yerseke, The Netherlands; Department of Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research (NIOZ) and Utrecht University, 4401 NT Yerseke, The Netherlands
| | - Peter M J Herman
- Department of Hydraulic Engineering, Delft University of Technology, 2628 CN, P.O. Box 5048, 2600 GA, Delft, The Netherlands; Deltares, P.O. Box 177, 2600 MH, Delft, The Netherlands
| | - Tjeerd J Bouma
- Department of Estuarine and Delta Systems, Royal Netherlands Institute of Sea Research (NIOZ) and Utrecht University, 4401 NT Yerseke, The Netherlands; Department of Physical Geography, Utrecht University, P.O. Box 80.115, 3508 TC, Utrecht, The Netherlands
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De Marchi L, Pretti C, Chiellini F, Morelli A, Neto V, Soares AMVM, Figueira E, Freitas R. The influence of simulated global ocean acidification on the toxic effects of carbon nanoparticles on polychaetes. Sci Total Environ 2019; 666:1178-1187. [PMID: 30970483 DOI: 10.1016/j.scitotenv.2019.02.109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/07/2019] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Abstract
Ocean acidification events are recognized as important drivers of change in biological systems. Particularly, the impacts of acidification are more severe in estuarine systems than in surface ocean due to their shallowness, low buffering capacity, low salinity and high organic matter from land drainage. Moreover, because they are transitional areas, estuaries can be seriously impacted by a vast number of anthropogenic activities and in the last decades, carbon nanomaterials (CNMs) are considered as emerging contaminants in these ecosystems. Considering all these evidences, chronic experiment was carried out, trying to understand the possible alteration on the chemical behaviour of two different CNMs (functionalized and pristine) in predicted climate change scenarios and consequently, how these alterations could modify the sensitivity of one the most common marine and estuarine organisms (the polychaeta Hediste diversicolor) assessing a set of biomarkers related to polychaetes oxidative status as well as the metabolic performance and neurotoxicity. Our results demonstrated that all enzymes worked together to counteract seawater acidification and CNMs, however oxidative stress in the exposed polychaetes to both CNMs, especially under ocean acidification conditions, was enhanced. In fact, although the antioxidant enzymes tried to cope as compensatory response of cellular defense systems against oxidative stress, the synergistic interactive effects of pH and functionalized CNMs indicated that acidified pH significantly increased the oxidative damage (in terms of lipid peroxidation) in the cotaminated organisms. Different responses were observed in organisms submitted to pristine CNMs under pH control, where the lipid peroxidation did not increase along with the increasing exposure concentrations. The present results further demonstrated neurotoxicity caused by both CNMs, especially noticeable at acidified conditions. The mechanism of enhanced toxicity could be attributed to slighter aggregation and more suspended NMs in acidified seawater (as demonstrated by the DLS analysis). Therefore, ocean acidification may cause a higher risk of CNMs to marine ecosystems.
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Affiliation(s)
- Lucia De Marchi
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro 3810-193, Aveiro, Portugal; Department of Mechanical Engineering & Center for Mechanical Technology and Automation (TEMA), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Pisa 56122, Italy
| | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Udr INSTM Pisa, Pisa 56126, Italy
| | - Andrea Morelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, Udr INSTM Pisa, Pisa 56126, Italy
| | - Victor Neto
- Department of Mechanical Engineering & Center for Mechanical Technology and Automation (TEMA), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro 3810-193, Aveiro, Portugal
| | - Etelvina Figueira
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro 3810-193, Aveiro, Portugal
| | - Rosa Freitas
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro 3810-193, Aveiro, Portugal.
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Métais I, Châtel A, Mouloud M, Perrein-Ettajani H, Bruneau M, Gillet P, Jrad N, Mouneyrac C. Is there a link between acetylcholinesterase, behaviour and density populations of the ragworm Hediste diversicolor? Mar Pollut Bull 2019; 142:178-182. [PMID: 31232292 DOI: 10.1016/j.marpolbul.2019.03.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
The main objective of the present study was to explore the potential link between acetylcholinesterase (AChE) activity and burrowing behaviour of the ragworm Hediste diversicolor, which may have consequences at higher levels of biological organisation. Two complementary studies were conducted. AChE activity, at the sub-individual level, and behavioural responses, at the individual level, were evaluated in worms from the Loire estuary (France), whereas density and biomass of H. diversicolor were determined at the population level. A Spearman positive correlation between both biomarkers (AChE and burrowing) suggested that inhibition of AChE activity was linked to behaviour impairments. At the population level, lower AChE and behaviour activities were detected in worms corresponding to lower population density and biomass. These results provide direct empirical field evidence demonstrating the sensitivity of behaviour of H. diversicolor as a biomonitor of estuarine health status assessment.
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Affiliation(s)
- Isabelle Métais
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France.
| | - Amélie Châtel
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
| | - Mohammed Mouloud
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
| | - Hanane Perrein-Ettajani
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
| | - Mélanie Bruneau
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
| | - Patrick Gillet
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
| | - Nisrine Jrad
- Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS, EA731), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
| | - Catherine Mouneyrac
- Laboratoire Mer, Molécules, Santé (MMS, EA 2160), Université Catholique de l'Ouest, Faculté des Sciences, Angers F-49000, France
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Strathmann RR, Brante A, Oyarzun FX. Contrasting Metatrochal Behavior of Mollusc and Annelid Larvae and the Regulation of Feeding While Swimming. Biol Bull 2019; 236:130-143. [PMID: 30933637 DOI: 10.1086/701730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Molluscan veliger larvae and some annelid larvae capture particulate food between a preoral prototrochal band of long cilia that create a current for both swimming and feeding and a postoral metatrochal band of shorter cilia that beat toward the prototroch. Larvae encountering satiating or noxious particles must somehow swim without capturing particles or else reject large numbers of captured particles. Because high rates of particle capture are inferred to depend on the beat of both ciliary bands, arrest of the metatroch could be one way to swim while reducing captures. Larvae in eight families of annelids arrest metatrochal cilia frequently during prototrochal beat, often over a large part of the metatrochal band and with the arrested cilia aligned near the beginning of the effective stroke. In contrast, metatrochs of veligers of gastropods and bivalves rarely arrested while the prototroch beat, and those arrests were more localized and variable in position. This difference in metatrochal arrest was unexpected under hypotheses of either a single origin of this feeding mechanism or multiple origins within each phylum. Although different in metatrochal arrests, larvae of both phyla can separate swimming from feeding while both prototroch and metatroch beat. One hypothesis explaining low rates of capture per encounter, without metatrochal arrest, is a change in adhesion of prototrochal cilia with algae. In a few observations, part of the velar edge was retained within the veliger's shell so that exposed prototrochal cilia contributed to swimming while the adjacent metatroch and food groove were sequestered.
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Nunes B. Acute ecotoxicological effects of salicylic acid on the Polychaeta species Hediste diversicolor: evidences of low to moderate pro-oxidative effects. Environ Sci Pollut Res Int 2019; 26:7873-7882. [PMID: 30684172 DOI: 10.1007/s11356-018-04085-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
Contamination of the aquatic environment by pharmaceutical drugs is an emerging issue in ecotoxicology. Aquatic organisms, in the presence of xenobiotics, tend to activate defensive mechanisms against toxic effects in order to mitigate and/or compensate for the toxic damages that frequently result from these interactions. Salicylic acid (SA) is a common drug, widely used in human medicine due to its analgesic, anti-inflammatory, and antipyretic properties, as well as its activity in terms of preventing platelet aggregation, among other clinical and cosmetic uses. It is commonly found in levels of the nanograms per liter to the micrograms per liter range in receiving waters, and its presence has been related to toxic effects in aquatic organisms, including oxidative stress. However, the number of studies that characterize the ecotoxicological profile of salicylates is still scarce and no studies have been published about the putative toxic effects of SA, especially in marine polychaetes. In order to determine the potential ecotoxicological effects caused by SA, individuals of the marine Polychaeta species Hediste diversicolor were exposed for 96 h to ecologically relevant concentrations of this compound, and several biochemical endpoints were evaluated, namely the activity of the antioxidant enzymes glutathione peroxidase (GPx) and catalase (CAT), the phase II biotransformation isoenzymes glutathione S-transferases (GSTs), the cholinergic enzyme acetylcholinesterase (AChE), and the determination of lipoperoxidative damage (thiobarbituric acid-reactive substances (TBARS) assay). The obtained results demonstrated that despite the pro-oxidative effects elicited by SA, exposure to realistic levels of this compound was not able to generate a state of oxidative stress, and the adaptive protective responses elicited by exposed individuals were effective enough to minimize and/or inhibit the damage potentially caused by overproduced reactive oxygen species.
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Affiliation(s)
- Bruno Nunes
- Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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Álvarez-Campos P, Kenny NJ, Verdes A, Fernández R, Novo M, Giribet G, Riesgo A. Delegating Sex: Differential Gene Expression in Stolonizing Syllids Uncovers the Hormonal Control of Reproduction. Genome Biol Evol 2019; 11:295-318. [PMID: 30535381 PMCID: PMC6350857 DOI: 10.1093/gbe/evy265] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2018] [Indexed: 12/31/2022] Open
Abstract
Stolonization in syllid annelids is a unique mode of reproduction among animals. During the breeding season, a structure resembling the adult but containing only gametes, called stolon, is formed generally at the posterior end of the animal. When stolons mature, they detach from the adult and gametes are released into the water column. The process is synchronized within each species, and it has been reported to be under environmental and endogenous control, probably via endocrine regulation. To further understand reproduction in syllids and to elucidate the molecular toolkit underlying stolonization, we generated Illumina RNA-seq data from different tissues of reproductive and nonreproductive individuals of Syllis magdalena and characterized gene expression during the stolonization process. Several genes involved in gametogenesis (ovochymase, vitellogenin, testis-specific serine/threonine-kinase), immune response (complement receptor 2), neuronal development (tyrosine-protein kinase Src42A), cell proliferation (alpha-1D adrenergic receptor), and steroid metabolism (hydroxysteroid dehydrogenase 2) were found differentially expressed in the different tissues and conditions analyzed. In addition, our findings suggest that several neurohormones, such as methyl farnesoate, dopamine, and serotonin, might trigger stolon formation, the correct maturation of gametes and the detachment of stolons when gametogenesis ends. The process seems to be under circadian control, as indicated by the expression patterns of r-opsins. Overall, our results shed light into the genes that orchestrate the onset of gamete formation and improve our understanding of how some hormones, previously reported to be involved in reproduction and metamorphosis processes in other invertebrates, seem to also regulate reproduction via stolonization.
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Affiliation(s)
- Patricia Álvarez-Campos
- Facultad de Ciencias, Departamento de Biología (Zoología), Universidad Autónoma de Madrid, Spain
- Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts
- Department of Life Sciences, The Natural History Museum of London, London, United Kingdom
- Department of Biological & Medical Sciences, Oxford Brookes University, Headington Campus, Gipsy Lane, Oxford, United Kingdom
| | - Nathan J Kenny
- Department of Life Sciences, The Natural History Museum of London, London, United Kingdom
| | - Aida Verdes
- Facultad de Ciencias, Departamento de Biología (Zoología), Universidad Autónoma de Madrid, Spain
- Department of Biology, The Graduate Center, City University of New York
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, New York
| | - Rosa Fernández
- Bioinformatics & Genomics Unit, Center for Genomic Regulation, Barcelona, Spain
| | - Marta Novo
- Facultad de Biología, Departamento de Biodiversidad, Ecología y Evolución, Universidad Complutense de Madrid, Spain
| | - Gonzalo Giribet
- Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts
| | - Ana Riesgo
- Department of Biology, The Graduate Center, City University of New York
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Fernández-Romero A, Moreira J, Guerra-García JM. Marinas: An overlooked habitat for exploring the relation among polychaete assemblages and environmental factors. Mar Pollut Bull 2019; 138:584-597. [PMID: 30660310 DOI: 10.1016/j.marpolbul.2018.11.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/26/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
The increasing number of anthropogenic areas in the marine environment results in significant impact to adjacent ecosystems. In fact, the presence of marinas modifies the original environmental conditions and ends up disturbing the faunal community. However, despite the essential role displayed by the macrofauna on marinas' fouling biota, certain taxa such as polychaetes have been poorly studied. The present study provides the first spatial characterization of the epibiont polychaete fauna associated with the bryozoan Bugula neritina in marinas along the Iberian Peninsula and the north of Morocco. A total of 32 polychaete species were identified, with Syllidae being the most diverse family. Furthermore, the environmental factors involved in the occurrence and abundance of the dominant species Salvatoria clavata were also analyzed by Generalized Linear Models; results showed that the highest predicted values of S. clavata abundance appeared at marinas with high levels of nutrient enrichment and of heavy metals concentration.
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Affiliation(s)
- Alejandro Fernández-Romero
- Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología, Universidad de Sevilla, Avda. Reina Mercedes 6, 41012 Sevilla, Spain.
| | - Juan Moreira
- Departamento de Biología (Zoología), Universidad Autónoma de Madrid, Cantoblanco, E-28049, Madrid, Spain
| | - José M Guerra-García
- Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología, Universidad de Sevilla, Avda. Reina Mercedes 6, 41012 Sevilla, Spain
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Mao J, Zhang W, Zhang X, Tian Y, Wang X, Hao Z, Chang Y. Transcriptional changes in the Japanese scallop (Mizuhopecten yessoensis) shellinfested by Polydora provide insights into the molecular mechanism of shell formation and immunomodulation. Sci Rep 2018; 8:17664. [PMID: 30518937 PMCID: PMC6281612 DOI: 10.1038/s41598-018-35749-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/07/2018] [Indexed: 01/19/2023] Open
Abstract
The Japanese scallop (Mizuhopecten yessoensis) is one of the most important aquaculture species in Asian countries; however, it has suffered severe infection by Polydora in northern China in recent years, causing great economic losses. The Polydora parasitizes the shell of scallops, badly destroying the shell's structure. To investigate the molecular response mechanism of M. yessoensis to Polydora infestion, a comprehensive and niche-targeted cDNA sequence database for diseased scallops was constructed. Additionally, the transcriptional changes in the edge mantle, central mantle and hemocytes, tissues directly related to the disease, were first described in this study. The results showed that genes involved in shell formation and immunomodulation were significantly differentially expressed due to the infestation. Different transcriptional changes existed between the two mantle regions, indicating the different molecular functions likely responsible for the formation of different shell layers. The differential expression of genes for immune recognition, signal transduction and pathogen elimination presented an integrated immune response process in scallops. Moreover, neuromodulation and glycometabolism involved in the regulation process with relevant function significantly enriched. The study provides valuable information for mechanism study of shell formation and immunomodulation in scallops.
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Affiliation(s)
- Junxia Mao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Wenjing Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Xiaosen Zhang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Ying Tian
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Xubo Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Zhenlin Hao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China.
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Sandman AN, Näslund J, Gren IM, Norling K. Effects of an invasive polychaete on benthic phosphorus cycling at sea basin scale: An ecosystem disservice. Ambio 2018; 47:884-892. [PMID: 29730794 PMCID: PMC6230331 DOI: 10.1007/s13280-018-1050-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 02/23/2018] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
Macrofaunal activities in sediments modify nutrient fluxes in different ways including the expression of species-specific functional traits and density-dependent population processes. The invasive polychaete genus Marenzelleria was first observed in the Baltic Sea in the 1980s. It has caused changes in benthic processes and affected the functioning of ecosystem services such as nutrient regulation. The large-scale effects of these changes are not known. We estimated the current Marenzelleria spp. wet weight biomass in the Baltic Sea to be 60-87 kton (95% confidence interval). We assessed the potential impact of Marenzelleria spp. on phosphorus cycling using a spatially explicit model, comparing estimates of expected sediment to water phosphorus fluxes from a biophysical model to ecologically relevant experimental measurements of benthic phosphorus flux. The estimated yearly net increases (95% CI) in phosphorous flux due to Marenzelleria spp. were 4.2-6.1 kton based on the biophysical model and 6.3-9.1 kton based on experimental data. The current biomass densities of Marenzelleria spp. in the Baltic Sea enhance the phosphorus fluxes from sediment to water on a sea basin scale. Although high densities of Marenzelleria spp. can increase phosphorus retention locally, such biomass densities are uncommon. Thus, the major effect of Marenzelleria seems to be a large-scale net decrease in the self-cleaning capacity of the Baltic Sea that counteracts human efforts to mitigate eutrophication in the region.
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Affiliation(s)
| | - Johan Näslund
- AquaBiota Water Research, Löjtnantsgatan 25, 115 50 Stockholm, Sweden
| | - Ing-Marie Gren
- Department of Economics, Swedish University of Agricultural Economics, Box 7013, 75007 Uppsala, Sweden
| | - Karl Norling
- Swedish Agency for Marine and Water Management, Box 119 30, 404 39 Göteborg, Sweden
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Planques A, Malem J, Parapar J, Vervoort M, Gazave E. Morphological, cellular and molecular characterization of posterior regeneration in the marine annelid Platynereis dumerilii. Dev Biol 2018; 445:189-210. [PMID: 30445055 DOI: 10.1016/j.ydbio.2018.11.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/29/2018] [Accepted: 11/08/2018] [Indexed: 01/08/2023]
Abstract
Regeneration, the ability to restore body parts after an injury or an amputation, is a widespread but highly variable and complex phenomenon in animals. While having fascinated scientists for centuries, fundamental questions about the cellular basis of animal regeneration as well as its evolutionary history remain largely unanswered. Here, we present a study of regeneration of the marine annelid Platynereis dumerilii, an emerging comparative developmental biology model, which, like many other annelids, displays important regenerative abilities. When P. dumerilii worms are amputated, they are able to regenerate the posteriormost differentiated part of their body and a stem cell-rich growth zone that allows the production of new segments replacing the amputated ones. We show that posterior regeneration is a rapid process that follows a well reproducible path and timeline, going through specific stages that we thoroughly defined. Wound healing is achieved one day after amputation and a regeneration blastema forms one day later. At this time point, some tissue specification already occurs, and a functional posterior growth zone is re-established as early as three days after amputation. Regeneration timing is only influenced, in a minor manner, by worm size. Comparable regenerative abilities are found for amputations performed at different positions along the antero-posterior axis of the worm, except when amputation planes are very close to the pharynx. Regenerative abilities persist upon repeated amputations without important alterations of the process. We also show that intense cell proliferation occurs during regeneration and that cell divisions are required for regeneration to proceed normally. Finally, 5-ethynyl-2'-deoxyuridine (EdU) pulse and chase experiments suggest that blastemal cells mostly derive from the segment immediately abutting the amputation plane. The detailed characterization of P. dumerilii posterior body regeneration presented in this article provides the foundation for future mechanistic and comparative studies of regeneration in this species.
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Affiliation(s)
- Anabelle Planques
- Institut Jacques Monod, CNRS, UMR 7592, Université Paris Diderot, Sorbonne Paris Cité, F-75205 Paris, France
| | - Julien Malem
- Institut Jacques Monod, CNRS, UMR 7592, Université Paris Diderot, Sorbonne Paris Cité, F-75205 Paris, France
| | - Julio Parapar
- Departamento de Bioloxía, Universidade da Coruña, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Michel Vervoort
- Institut Jacques Monod, CNRS, UMR 7592, Université Paris Diderot, Sorbonne Paris Cité, F-75205 Paris, France.
| | - Eve Gazave
- Institut Jacques Monod, CNRS, UMR 7592, Université Paris Diderot, Sorbonne Paris Cité, F-75205 Paris, France.
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Gebhardt C, Forster S. Size-selective feeding of Arenicola marina promotes long-term burial of microplastic particles in marine sediments. Environ Pollut 2018; 242:1777-1786. [PMID: 30076054 DOI: 10.1016/j.envpol.2018.07.090] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
Despite of their ubiquitous distribution in marine sediments, the role of benthic fauna in microplastic transport at the sea floor has received little attention yet. The present study investigated the influence of bioturbation activity of the polychaete Arenicola marina on microplastic transport and burial in marine sediments. Sediment ingestion was assessed in a long term mesocosm experiment with exposure times ranging from 106 to 240 days, using three particle tracers with different particle diameters (microplastic: 500 and 1000 μm, respectively; luminophores: 130 μm). Sediment grain size distributions were assessed after experiment termination in all feeding layers at 8-12 cm depth to determine the influence of size-selective feeding of A. marina on median grain size and microplastic retention. Burial of microplastic occurred in all mesocosms up to a depth of 20 cm and was strongly dependent on individual sediment feeding rates. For low bioturbation conditions, both microplastic and luminophore concentrations exhibited an exponential decrease with increasing sediment depth, indicating particle burial via feeding funnel transport. Particle concentrations remained high in the uppermost 4 cm of the sediment. At high bioturbation rates, no microplastic particles remained in near-surface sediment layers, but a distinct accumulation of microplastic was observed in the feeding layer, suggesting the discrimination of plastic particles during feeding. In contrast, luminophores displayed a similar accumulation, but additionally showed uniform distributions above feeding layers, indicating ingestion and defecation by polychaetes. In accordance with these findings, an overall coarsening of median grain sizes was observed in all feeding layers, indicating the retention of large microplastic due to size-selective feeding. These findings demonstrate the ability of the conveyor belt-feeding polychaete A. marina to promote unidirectional transports of microplastic ≥500 μm and the potential for the long-term retention of these particles in marine sediments.
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Affiliation(s)
- Christopher Gebhardt
- University of Rostock, Institute of Biological Sciences, Marine Biology, Albert-Einstein-Strasse 3, 18059, Rostock, Germany.
| | - Stefan Forster
- University of Rostock, Institute of Biological Sciences, Marine Biology, Albert-Einstein-Strasse 3, 18059, Rostock, Germany.
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Wright JT, Holmes ZC, Byers JE. Stronger positive association between an invasive crab and a native intertidal ecosystem engineer with increasing wave exposure. Mar Environ Res 2018; 142:124-129. [PMID: 30314636 DOI: 10.1016/j.marenvres.2018.09.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/26/2018] [Accepted: 09/26/2018] [Indexed: 06/08/2023]
Abstract
Ecosystem engineers are predicted to have stronger facilitative effects when environmental stress is higher. Here we examined whether facilitation of the invasive porcelain crab Petrolisthes elongatus by the ecosystem engineering serpulid tube worm Galeolaria caespitosa increased with wave exposure. Petrolisthes occurs beneath intertidal boulders which often have a high cover of Galeolaria on their underside. Surveys across nine sites demonstrated Petrolisthes abundance beneath boulders increased with wave exposure and Galeolaria cover, although only when the habitat matrix beneath boulders was rock or mixed rock and sand. Moreover, as wave exposure increased, the strength of relationship between Petrolisthes abundance and the surface area of Galeolaria also increased. Experimentally, the presence of Galeolaria on the underside of boulders increased Petrolisthes abundance by 50% compared to boulders lacking Galeolaria. Our findings suggest the facilitative role of Galeolaria is stronger at more wave-exposed sites, which appears to contribute to a higher abundance of invasive Petrolisthes.
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Affiliation(s)
- Jeffrey T Wright
- Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, 7001, Australia.
| | - Zachary C Holmes
- Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA
| | - James E Byers
- Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA
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Sun N, Chen Y, Xu S, Zhang Y, Fu Q, Ma L, Wang Q, Chang Y, Man Z. Remobilization and bioavailability of polycyclic aromatic hydrocarbons from estuarine sediments under the effects of Nereis diversicolor bioturbation. Environ Pollut 2018; 242:931-937. [PMID: 30373038 DOI: 10.1016/j.envpol.2018.07.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 07/07/2018] [Accepted: 07/08/2018] [Indexed: 06/08/2023]
Abstract
The effects of Nereis diversicolor bioturbation on the remobilization and bioavailability of polycyclic aromatic hydrocarbons from estuarine sediment were determined after 60 d in a laboratory experiment. The release fluxes and mass transfer coefficients showed that bioturbation by N. diversicolor can lead to a significant remobilization of polycyclic aromatic hydrocarbons (PAHs) from estuarine sediments. Bioturbation enhanced the release of PAHs from sediment to water by accelerating the transport of sediment particles to the sediment-water interface followed by PAHs desorption to the water. The bioavailability of PAHs was described by SPMD-sediment accumulation factors (SSAF). The SSAF of low molecular weight PAHs with bioturbation was significantly higher than that of PAHs without bioturbation, and there were no significant variations in high-molecular-weight PAHs. Our results revealed that N. diversicolor bioturbation significantly increased PAHs release from sediment to water but only increased the bioavailability of low-molecular-weight PAHs.
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Affiliation(s)
- Nan Sun
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Yanli Chen
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Shuqin Xu
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China.
| | - Ying Zhang
- College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Qiang Fu
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Lixin Ma
- Department of Environmental Protection of Heilongjiang Province, Harbin 150090, China
| | - Qi Wang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Yuqing Chang
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Zhe Man
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China
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Fonseca TG, Auguste M, Ribeiro F, Cardoso C, Mestre NC, Abessa DMS, Bebianno MJ. Environmental relevant levels of the cytotoxic drug cyclophosphamide produce harmful effects in the polychaete Nereis diversicolor. Sci Total Environ 2018; 636:798-809. [PMID: 29727846 DOI: 10.1016/j.scitotenv.2018.04.318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
Cytotoxic drugs applied in chemotherapy enter the aquatic environment after patient's metabolism and excretion, in both main compounds and their respective metabolites. The increased consumption and discharge of these drugs raise concern on the genotoxic burden to non-target aquatic species, due to their unselective action on DNA. Settlement and adsorption of cytotoxic drugs to aquatic sediments pose risks to benthic species through chronic exposure. The aim of the present study was to assess the effects induced by the anticancer drug cyclophosphamide (CP) on the polychaete Nereis diversicolor, after 14 days of exposure to environmental relevant concentrations (10, 100, 500 and 1000 ng L-1). Burrowing impairment, neurotoxicity (Acetylcholinesterase - AChE activity), oxidative stress (superoxide dismutase - SOD; catalase - CAT; glutathione peroxidases - GPXs activities), biotransformation (glutathione-S-transferases - GST), oxidative damage (lipid peroxidation - LPO) and genotoxicity (DNA damage) were assessed. Burrowing impairments were higher at the lowest CP concentrations tested. The higher CP levels tested (500 and 1000 ng L-1) induced a significant inhibition on the enzymatic antioxidant system (SOD, GPx) and on GST activity. DNA damage was also significant at these concentrations as an outcome of CP metabolism, and high levels of oxidative damage occurred. The results showed that the prodrug CP was metabolically activated in the benthic biological model N. diversicolor. In addition to the potential cytotoxic impact likely to be caused in aquatic species with similar metabolism, N. diversicolor proved to be reliable and vulnerable to the cytotoxic mode of action of CP, even at the lower doses.
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Affiliation(s)
- T G Fonseca
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal; NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, Universidade Estadual Paulista - UNESP, Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | - M Auguste
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - F Ribeiro
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - C Cardoso
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - N C Mestre
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal
| | - D M S Abessa
- NEPEA, Núcleo de Estudos em Poluição e Ecotoxicologia. Aquática, Universidade Estadual Paulista - UNESP, Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | - M J Bebianno
- CIMA, Centre for Marine and Environmental Research, University of Algarve, Campus Gambelas, 8005-135 Faro, Portugal.
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Chirgwin E, Marshall DJ, Sgrò CM, Monro K. How does parental environment influence the potential for adaptation to global change? Proc Biol Sci 2018; 285:20181374. [PMID: 30209227 PMCID: PMC6158540 DOI: 10.1098/rspb.2018.1374] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/23/2018] [Indexed: 02/01/2023] Open
Abstract
Parental environments are regularly shown to alter the mean fitness of offspring, but their impacts on the genetic variation for fitness, which predicts adaptive capacity and is also measured on offspring, are unclear. Consequently, how parental environments mediate adaptation to environmental stressors, like those accompanying global change, is largely unknown. Here, using an ecologically important marine tubeworm in a quantitative-genetic breeding design, we tested how parental exposure to projected ocean warming alters the mean survival, and genetic variation for survival, of offspring during their most vulnerable life stage under current and projected temperatures. Offspring survival was higher when parent and offspring temperatures matched. Across offspring temperatures, parental exposure to warming altered the distribution of additive genetic variance for survival, making it covary across current and projected temperatures in a way that may aid adaptation to future warming. Parental exposure to warming also amplified nonadditive genetic variance for survival, suggesting that compatibilities between parental genomes may grow increasingly important under future warming. Our study shows that parental environments potentially have broader-ranging effects on adaptive capacity than currently appreciated, not only mitigating the negative impacts of global change but also reshaping the raw fuel for evolutionary responses to it.
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Affiliation(s)
- Evatt Chirgwin
- Centre for Geometric Biology, Monash University, Melbourne 3800, Australia
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Dustin J Marshall
- Centre for Geometric Biology, Monash University, Melbourne 3800, Australia
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Carla M Sgrò
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
| | - Keyne Monro
- Centre for Geometric Biology, Monash University, Melbourne 3800, Australia
- School of Biological Sciences, Monash University, Melbourne 3800, Australia
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45
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De Cubber L, Lefebvre S, Fisseau C, Cornille V, Gaudron SM. Linking life-history traits, spatial distribution and abundance of two species of lugworms to bait collection: A case study for sustainable management plan. Mar Environ Res 2018; 140:433-443. [PMID: 30055836 DOI: 10.1016/j.marenvres.2018.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 06/08/2023]
Abstract
Arenicola spp. are marine benthic polychaetes dug for bait by anglers. Without regulation, this activity can lead to the decrease of lugworms' population meanwhile affecting the physical characteristics of the beach and the biodiversity. Here, we identified through morphology and genetics two species of lugworms, Arenicola marina and A. defodiens, within a Marine Protected Area of the Eastern English Channel (France). For each species, abundance and spatial distribution were assessed using a stratified random sampling and interpolation at four studied sites, as well as some life-history traits. These data were compared to lugworms' collection data to estimate its sustainability and to provide potential management measures. At one site, A. marina was present in large numbers on the higher and middle shore, whereas A. defodiens occupied the lower shore. At the other sites, both species co-occurred on the lower shore, and A. marina individuals were less numerous and lacking recruits. Spawning periods for A. marina occurred in early autumn and in late autumn for A. defodiens. The size at first maturity of A. marina was at 3.8 cm of trunk length (between 1.5 and 2.5 years old). One site (Au) appeared in need for management when linking abundance data with bait collection, where harvest of both species represented ∼14% of the total amount of lugworms and was above the carrying capacity of the beach for A. marina. The retail value associated to lugworm harvesting within the MPA was estimated at the same level as the shrimp retail value. Our results highlight the need for some fishery regulations.
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Affiliation(s)
- Lola De Cubber
- Univ. Lille, Univ. Littoral Côte d'Opale, CNRS, UMR 8187 Laboratoire d'Océanologie et de Géosciences, 62930 Wimereux, France
| | - Sébastien Lefebvre
- Univ. Lille, Univ. Littoral Côte d'Opale, CNRS, UMR 8187 Laboratoire d'Océanologie et de Géosciences, 62930 Wimereux, France; IFREMER, HMMN Laboratoire de ressources halieutiques, quai Gambetta, 62200 Boulogne sur mer, France
| | - Charline Fisseau
- Parc naturel marin des estuaires picards et de la mer d'Opale, Agence des Aires Marines Protégées, 62200 Boulogne sur mer, France
| | - Vincent Cornille
- Univ. Lille, Univ. Littoral Côte d'Opale, CNRS, UMR 8187 Laboratoire d'Océanologie et de Géosciences, 62930 Wimereux, France
| | - Sylvie Marylène Gaudron
- Univ. Lille, Univ. Littoral Côte d'Opale, CNRS, UMR 8187 Laboratoire d'Océanologie et de Géosciences, 62930 Wimereux, France; Sorbonne Univ., UFR 918 & UFR 927, 75005 Paris, France.
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46
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Nasi F, Nordström MC, Bonsdorff E, Auriemma R, Cibic T, Del Negro P. Functional biodiversity of marine soft-sediment polychaetes from two Mediterranean coastal areas in relation to environmental stress. Mar Environ Res 2018; 137:121-132. [PMID: 29551408 DOI: 10.1016/j.marenvres.2018.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 03/04/2018] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
Biological Traits Analysis (BTA) was used to identify functional features of infaunal polychaete assemblages associated with contamination in two Italian coastal areas: the harbour of Trieste (Adriatic Sea) and the Mar Piccolo of Taranto (Ionian Sea). The analysis was performed on 103 taxa, collected at four stations in each area. The two areas differed in species composition. The low diversity and the presence of stress-tolerant species in more polluted sites were not reflected in functional diversity, due to species contributing little to community functions or being functionally redundant. Sand and clay fractions were significant drivers of trait category expressions, however other environmental parameters (depth, total organic carbon and nitrogen, and Hg in sediments) influenced traits composition. Motile was the prevalent trait in environments with coarse sediments, and tube-builder were related to fine-grained ones. Motile, endobenthic and burrower were essential traits for living in contaminated sediments. Epibenthic and sessile polychaetes dominated at stations subjected to high organic loads. BTA offers an integrative approach to detect functional adaptations to contaminated sediments and multiple anthropogenic stressors.
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Affiliation(s)
- F Nasi
- Sezione di Oceanografia, Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS, I-34151 Trieste, Italy; Dipartimento di Scienze Della Vita, Università degli Studi di Trieste, Trieste, Italy.
| | - M C Nordström
- Åbo Akademi University, Faculty of Science and Engineering, Environmental and Marine Biology, FI-20500 Turku, Finland
| | - E Bonsdorff
- Åbo Akademi University, Faculty of Science and Engineering, Environmental and Marine Biology, FI-20500 Turku, Finland
| | - R Auriemma
- Sezione di Oceanografia, Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS, I-34151 Trieste, Italy
| | - T Cibic
- Sezione di Oceanografia, Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS, I-34151 Trieste, Italy
| | - P Del Negro
- Sezione di Oceanografia, Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS, I-34151 Trieste, Italy
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47
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Cuevas N, Martins M, Rodrigo AP, Martins C, Costa PM. Explorations on the ecological role of toxin secretion and delivery in jawless predatory Polychaeta. Sci Rep 2018; 8:7635. [PMID: 29769587 PMCID: PMC5955894 DOI: 10.1038/s41598-018-26031-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 05/04/2018] [Indexed: 11/17/2022] Open
Abstract
Motivated by biotechnological prospects, there is increasing evidence that we may just be scraping the tip of the iceberg of poisonous marine invertebrates, among which the Polychaeta are promising candidates for bioprospecting. Here we show that an inconspicuous phyllodocid uses toxins in its uncanny feeding strategy. The worm, a jawless active predator characterised by its bright green colour, preys on larger invertebrates (including conspecifics) by extracting tissue portions with its powerful proboscis through suction. The animal is even able to penetrate through the valves and plates of live molluscs and barnacles. Observations in situ and a series of experiments demonstrated that the worm compensates its simple anatomy with secretion of a novel toxin, or mixture of toxins, referred to by us as "phyllotoxins". These are carried by mucus and delivered via repeated contact with the tip of the proboscis until the prey is relaxed or immobilised (reversibly). Proteolytic action permeabilises material to toxins and softens tissue to enable extraction by suction. The findings show that toxins are a major ecological trait and therefore play a key role in evolutionary success and diversification of Polychaeta, demonstrating also that understanding adaptative features may become the best showcase for novel animal toxins.
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Affiliation(s)
- N Cuevas
- UCIBIO - Research Unit on Applied Molecular Biosciences, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - M Martins
- MARE - Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia do ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
- UCIBIO - Research Unit on Applied Molecular Biosciences, Departamento de Química Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - A P Rodrigo
- UCIBIO - Research Unit on Applied Molecular Biosciences, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
- MARE - Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia do ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - C Martins
- UCIBIO - Research Unit on Applied Molecular Biosciences, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
- MARE - Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia do ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - P M Costa
- UCIBIO - Research Unit on Applied Molecular Biosciences, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.
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48
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McBriarty GJ, Kidd KA, Burridge LE. Short-Term Effects of the Anti-sea Lice Therapeutant Emamectin Benzoate on Clam Worms (Nereis virens). Arch Environ Contam Toxicol 2018; 74:539-545. [PMID: 29052740 DOI: 10.1007/s00244-017-0461-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 09/26/2017] [Indexed: 06/07/2023]
Abstract
The polychaete Nereis virens occurs commonly in marine sediments, is widely distributed, and is a popular bait species, as well as a potential replacement for wild-caught fish in commercial fish feed preparations. It is being considered as a potential co-extractive species for culture in integrated multi-trophic aquaculture operations. However, it is not known whether pesticides or drugs used to treat sea lice on farmed salmon, such as emamectin benzoate (EB), would adversely affect cultured or wild worms, because these compounds may persist in the environment. To determine the potential effects of EB to N. virens, bioassays were performed wherein worms were exposed in sand for 30 days to a concentration of 400 µg/kg dw (nominal). While no treatment-related mortality occurred, significant decreases in worm mass and marked behavioral changes (lack of burrowing) were observed in EB-treated sand compared with controls. These lab-based observations suggest a potential hazard to worms at sites where EB treatments have occurred.
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Affiliation(s)
- G J McBriarty
- Biology Department and Canadian Rivers Institute, University of New Brunswick, 100 Tucker Park Road, Saint John, NB, E2L 4L5, Canada.
| | - K A Kidd
- Biology Department and Canadian Rivers Institute, University of New Brunswick, 100 Tucker Park Road, Saint John, NB, E2L 4L5, Canada
- Department of Biology & School of Geography and Earth Sciences, McMaster University, 1280 Main St. W., Hamilton, ON, L8S 4K1, Canada
| | - L E Burridge
- Burridge Consulting Inc., 61 Emmalee Drive, Stratford, PE, C1B 0B5, Canada
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49
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Dikaeva DR, Frolova EA. Distribution of Polychaeta Communities in the West Spitsbergen Area in Winter (December 2015). Dokl Biol Sci 2018; 480:114-118. [PMID: 30009354 DOI: 10.1134/s0012496618030110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Indexed: 06/08/2023]
Abstract
Using the materials collected in 2015, modern data have been obtained on the polychaete species composition and quantitative distribution in the West Spitsbergen area in winter. Polychaete species complexes corresponding to different habitat conditions have been identified in the outer and inner parts of the bays. The distribution of the Polychaeta communities proved to be dependent on the bottom sediment composition, depth, and specific hydrological regime.
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Affiliation(s)
- D R Dikaeva
- Murmansk Marine Biological Institute, Kola Scientific Center, Russian Academy of Sciences, Murmansk, Russia.
| | - E A Frolova
- Murmansk Marine Biological Institute, Kola Scientific Center, Russian Academy of Sciences, Murmansk, Russia
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50
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Leung J, Chan KYK. Microplastics reduced posterior segment regeneration rate of the polychaete Perinereis aibuhitensis. Mar Pollut Bull 2018; 129:782-786. [PMID: 29100634 DOI: 10.1016/j.marpolbul.2017.10.072] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/22/2017] [Accepted: 10/23/2017] [Indexed: 05/20/2023]
Abstract
Microplastics are found in abundance in and on coastal sediments, and yet, whether exposure to this emerging pollutant negatively impact whole organism function is unknown. Focusing on a commercially important polychaete, Perinereis aibuhitensis, we demonstrated that presence of microplastics increased mortality and reduced the rate of posterior segment regeneration. The impact of the micro-polystyrene beads was size-dependent with smaller beads (8-12μm in diameter) being more detrimental than those bigger in size (32-38μm). This observed difference suggests microplastic impact could be affected by physical properties, e.g., sinking speed, surface area available for sorption of chemicals and bacteria, and selective feeding behaviors of the target organism.
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Affiliation(s)
- Julia Leung
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Kit Yu Karen Chan
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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