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Song M, Wang J, Wang Y, Hu R, Wang L, Guo Z, Jiang Z, Liang Z. Response mechanism of meiofaunal communities to multi-type of artificial reef habitats from the perspective of high-throughput sequencing technology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160927. [PMID: 36543272 DOI: 10.1016/j.scitotenv.2022.160927] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 12/04/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
Multiple types of artificial reefs have been widely deployed in the coast of northern Yellow Sea, which can enhance fishery resources, restore coastal habitats and improve the marine environment. Meiofauna plays important ecological roles in marine ecosystem, but the response mechanism of meiofaunal community to different types of artificial reef is still poorly understood. In this study, we characterized the meiofaunal communities of concrete artificial reef habitat (CAR), rocky artificial reef habitat (RAR), ship artificial reef habitat (SAR) and adjacent natural habitat (NH) using 18S rRNA gene high-throughput sequencing technology, and explored the relationship of community-environment. The results showed that the diversity and community structure of meiofauna differed significantly on both spatial and temporal scales. Spatial differences were mainly contributed to the flow field effects and biological effects generated by artificial habitats, while temporal differences were driven by temperature (T) and dissolved oxygen (DO). The dominant taxa of meiofauna included arthropods, annelids, platyhelminths and nematodes. Platyhelminths were mainly positively influenced by artificial habitats but annelids were the opposite. Co-occurrence network analysis revealed that NH was more sensitive to environmental change than artificial habitat, while the performance of CAR and SAR were more stable. These results indicated that meiofauna can respond accordingly to different types of artificial habitats, and could be superimposed over the normal seasonal effects. The current study could provide fundamental data for understanding the response mechanism of meiofaunal community to different types of artificial habitats and a reference for assessments of the impact of artificial reefs on the marine environment.
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Affiliation(s)
- Minpeng Song
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China
| | - Jiahao Wang
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China
| | - Yuxin Wang
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China
| | - Renge Hu
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China
| | - Lu Wang
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China
| | - Zhansheng Guo
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China
| | - Zhaoyang Jiang
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China.
| | - Zhenlin Liang
- Marine College, Shandong University, Weihai, Shandong 264209, China; Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, Shandong 264209, China.
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Good E, Holman LE, Pusceddu A, Russo T, Rius M, Iacono CL. Detection of community-wide impacts of bottom trawl fishing on deep-sea assemblages using environmental DNA metabarcoding. MARINE POLLUTION BULLETIN 2022; 183:114062. [PMID: 36075115 DOI: 10.1016/j.marpolbul.2022.114062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Although considerable research progress on the effects of anthropogenic disturbance in the deep sea has been made in recent years, our understanding of these impacts at community level remains limited. Here, we studied deep-sea assemblages of Sicily (Mediterranean Sea) subject to different intensities of benthic trawling using environmental DNA (eDNA) metabarcoding and taxonomic identification of meiofauna communities. Firstly, eDNA metabarcoding data did not detect trawling impacts using alpha diversity whereas meiofauna data detected a significant effect of trawling. Secondly, both eDNA and meiofauna data detected significantly different communities across distinct levels of trawling intensity when we examined beta diversity. Taxonomic assignment of the eDNA data revealed that Bryozoa was present only at untrawled sites, highlighting their vulnerability to trawling. Our results provide evidence for community-wide impacts of trawling, with different trawling intensities leading to distinct deep-sea communities. Finally, we highlight the need for further studies to unravel understudied deep-sea biodiversity.
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Affiliation(s)
- Edward Good
- School of Ocean and Earth Science, University of Southampton, Waterfront Campus, Southampton, United Kingdom.
| | - Luke E Holman
- School of Ocean and Earth Science, University of Southampton, Waterfront Campus, Southampton, United Kingdom; Section for Molecular Ecology and Evolution, Faculty of Health and Medical Sciences, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Antonio Pusceddu
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli, 1, 09126 Cagliari, Italy
| | - Tommaso Russo
- Laboratory of Experimental Ecology and Aquaculture, Department of Biology, University of Rome Tor Vergata, Rome 00133, Italy
| | - Marc Rius
- School of Ocean and Earth Science, University of Southampton, Waterfront Campus, Southampton, United Kingdom; Centre for Advanced Studies of Blanes - Spanish National Research Council (CEAB-CSIC), Accés a la Cala Sant Francesc 14, 17300 Blanes (Girona), Spain; Centre for Ecological Genomics and Wildlife Conservation, Department of Zoology, University of Johannesburg, South Africa
| | - Claudio Lo Iacono
- Marine Sciences Institute - Spanish National Research Council (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain
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Epstein G, Middelburg JJ, Hawkins JP, Norris CR, Roberts CM. The impact of mobile demersal fishing on carbon storage in seabed sediments. GLOBAL CHANGE BIOLOGY 2022; 28:2875-2894. [PMID: 35174577 PMCID: PMC9307015 DOI: 10.1111/gcb.16105] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 12/17/2021] [Indexed: 05/26/2023]
Abstract
Subtidal marine sediments are one of the planet's primary carbon stores and strongly influence the oceanic sink for atmospheric CO2 . By far the most widespread human activity occurring on the seabed is bottom trawling/dredging for fish and shellfish. A global first-order estimate suggested mobile demersal fishing activities may cause 0.16-0.4 Gt of organic carbon (OC) to be remineralized annually from seabed sediment carbon stores (Sala et al., 2021). There are, however, many uncertainties in this calculation. Here, we discuss the potential drivers of change in seabed sediment OC stores due to mobile demersal fishing activities and conduct a literature review, synthesizing studies where this interaction has been directly investigated. Under certain environmental settings, we hypothesize that mobile demersal fishing would reduce OC in seabed stores due to lower production of flora and fauna, the loss of fine flocculent material, increased sediment resuspension, mixing and transport and increased oxygen exposure. Reductions would be offset to varying extents by reduced faunal bioturbation and community respiration, increased off-shelf transport and increases in primary production from the resuspension of nutrients. Studies which directly investigated the impact of demersal fishing on OC stocks had mixed results. A finding of no significant effect was reported in 61% of 49 investigations; 29% reported lower OC due to fishing activities, with 10% reporting higher OC. In relation to remineralization rates within the seabed, four investigations reported that demersal fishing activities decreased remineralization, with three reporting higher remineralization rates. Patterns in the environmental and experimental characteristics between different outcomes were largely indistinct. More evidence is urgently needed to accurately quantify the impact of anthropogenic physical disturbance on seabed carbon in different environmental settings and to incorporate full evidence-based carbon considerations into global seabed management.
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Affiliation(s)
- Graham Epstein
- Centre for Ecology and ConservationUniversity of ExeterCornwallUK
| | | | - Julie P. Hawkins
- Centre for Ecology and ConservationUniversity of ExeterCornwallUK
| | - Catrin R. Norris
- Centre for Ecology and ConservationUniversity of ExeterCornwallUK
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Schratzberger M, Somerfield PJ. Effects of widespread human disturbances in the marine environment suggest a new agenda for meiofauna research is needed. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138435. [PMID: 32570325 DOI: 10.1016/j.scitotenv.2020.138435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
The response of an ecological community to a disturbance event, and its capacity to recover, are of major interest to ecologists, especially at a time of increasing frequencies and intensities of environmental change brought about by humans. Meiofauna, a group of small-sized organisms, are an abundant and ubiquitous component of seafloor communities that respond rapidly to environmental change. We summarise the available research on the response of metazoan meiofauna to the most widespread anthropogenic disturbances in the marine environment, including bottom fishing, the introduction of invasive species and anthropogenic climate change. We show that disturbance effects on habitats interact critically with effects on resident meiofauna species. Their responses are consistent with competitive replacement, where disparate disturbance effects on competing species drive shifts in dominance and intra- and interspecific interactions. The widespread replacement of habitat-specific ecological specialists by broadly-adapted ecological generalists and opportunists results in biotic and functional homogenisation of once disparate biotas. Anthropogenic disturbances may facilitate novel interactions among meiofauna species, and between meiofauna and other benthic organisms, but the number and breadth of these interactions is likely to be limited. Knowledge about the dependence of meiofauna species on their environment and on other benthic species has been growing. Future studies will be most meaningful if this knowledge is expanded alongside understanding the potential of locally adapted species to respond to shifts in environmental conditions.
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Affiliation(s)
- Michaela Schratzberger
- Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft NR33 0HT, United Kingdom; Collaborative Centre for Sustainable Use of the Seas, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom.
| | - Paul J Somerfield
- Plymouth Marine Laboratory, Prospect Place, Plymouth PL1 3DH, United Kingdom
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Yang X, Lin C, Song X, Xu M, Yang H. Effects of artificial reefs on the meiofaunal community and benthic environment - A case study in Bohai Sea, China. MARINE POLLUTION BULLETIN 2019; 140:179-187. [PMID: 30803633 DOI: 10.1016/j.marpolbul.2018.12.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 05/25/2023]
Abstract
Artificial reefs are widely deployed for fishery enhancement and marine conservation. A comprehensive assessment on the effects of artificial reefs could minimize the negative consequence of blindly developing artificial reefs. We examined the meiofaunal community and benthic environment adjacent to and <5 m from artificial reefs in Xiangyun Bay, Bohai Sea, China. We found the highest total meiofaunal abundance beside the artificial reef. Shannon-Wiener and Pielou indexes had no significant difference among different distances from the artificial reefs. The presence of artificial reefs impeded the surrounding flow and provided additional substrate for bivalves and kelps, which could cause finer sediment and organic enrichment around it. Sediment grain size and total organic matter were the most important parameters influencing the meiofauna. We suggest that the shape, material, configuration and location of artificial reefs should be related with a specific goal to avoid mindless proliferation.
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Affiliation(s)
- Xinyuan Yang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Chenggang Lin
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Xiaoyue Song
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Min Xu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Hongsheng Yang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
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6
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Rosli N, Leduc D, Rowden AA, Clark MR, Probert PK, Berkenbusch K, Neira C. Differences in meiofauna communities with sediment depth are greater than habitat effects on the New Zealand continental margin: implications for vulnerability to anthropogenic disturbance. PeerJ 2016; 4:e2154. [PMID: 27441114 PMCID: PMC4941793 DOI: 10.7717/peerj.2154] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 05/30/2016] [Indexed: 11/20/2022] Open
Abstract
Studies of deep-sea benthic communities have largely focused on particular (macro) habitats in isolation, with few studies considering multiple habitats simultaneously in a comparable manner. Compared to mega-epifauna and macrofauna, much less is known about habitat-related variation in meiofaunal community attributes (abundance, diversity and community structure). Here, we investigated meiofaunal community attributes in slope, canyon, seamount, and seep habitats in two regions on the continental slope of New Zealand (Hikurangi Margin and Bay of Plenty) at four water depths (700, 1,000, 1,200 and 1,500 m). We found that patterns were not the same for each community attribute. Significant differences in abundance were consistent across regions, habitats, water and sediment depths, while diversity and community structure only differed between sediment depths. Abundance was higher in canyon and seep habitats compared with other habitats, while between sediment layer, abundance and diversity were higher at the sediment surface. Our findings suggest that meiofaunal community attributes are affected by environmental factors that operate on micro- (cm) to meso- (0.1–10 km), and regional scales (> 100 km). We also found a weak, but significant, correlation between trawling intensity and surface sediment diversity. Overall, our results indicate that variability in meiofaunal communities was greater at small scale than at habitat or regional scale. These findings provide new insights into the factors controlling meiofauna in these deep-sea habitats and their potential vulnerability to anthropogenic activities.
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Affiliation(s)
- Norliana Rosli
- Department of Marine Science, University of Otago, Dunedin, New Zealand; National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand; Department of Biology, Faculty Science & Mathematics, Universiti Pendidikan Sultan Idris, Tg. Malim, Perak, Malaysia
| | - Daniel Leduc
- National Institute of Water and Atmospheric Research (NIWA) , Wellington , New Zealand
| | - Ashley A Rowden
- National Institute of Water and Atmospheric Research (NIWA) , Wellington , New Zealand
| | - Malcolm R Clark
- National Institute of Water and Atmospheric Research (NIWA) , Wellington , New Zealand
| | - P Keith Probert
- Department of Marine Science, University of Otago , Dunedin , New Zealand
| | - Katrin Berkenbusch
- Department of Marine Science, University of Otago, Dunedin, New Zealand; Dragonfly Data Science, Wellington, New Zealand
| | - Carlos Neira
- Integrative Oceanography Division, Scripps Institution of Oceanography , La Jolla, California , United States
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Fraschetti S, Guarnieri G, Gambi C, Bevilacqua S, Terlizzi A, Danovaro R. Impact of offshore gas platforms on the structural and functional biodiversity of nematodes. MARINE ENVIRONMENTAL RESEARCH 2016; 115:56-64. [PMID: 26878347 DOI: 10.1016/j.marenvres.2016.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 01/29/2016] [Accepted: 02/03/2016] [Indexed: 06/05/2023]
Abstract
The Mediterranean Sea hosts hundreds of offshore gas platforms, whose activity represents a potential threat to marine ecosystems. Evidence from several studies indicates that nematodes can be highly sensitive to changes in the environmental quality. Here, we investigated the response of nematode assemblages to the presence of offshore gas platforms (located in the central Mediterranean Sea) in terms of spatial heterogeneity, structural and functional diversity. Since the effect of the investigated offshore platforms on macrofaunal assemblages were previously assessed by Terlizzi et al. (2008), the study provided also the opportunity to compare the response of different benthic compartments to the same impact related to fossil fuel extraction on marine environments. The platforms had a significant impact on nematode assemblages up to 1000 m distance from the structure. The effects were evident in term of: a) more homogeneous spatial distribution of nematode assemblages, b) increased trophic diversity of deposit feeders and c) changes in life strategies with an increase of opportunistic species in sediments closer to the platforms. Such effects seemed to be related to the dimension of the platform structures, rather than to chemical pollution or changes in food availability. These findings suggest that the platforms exert a physical alteration of the surrounding environment that is reflected by altered structural and functional traits of nematode biodiversity. The use of nematodes for monitoring the effects of the platforms only partially matched with the results obtained using macrofauna, providing further insights on potential outcomes on the functional response of marine assemblages to fossil fuel extraction.
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Affiliation(s)
- S Fraschetti
- Department of Biological and Environmental Sciences and Technology, University of Salento, CoNISMa, I-73100 Lecce, Italy.
| | - G Guarnieri
- Department of Biological and Environmental Sciences and Technology, University of Salento, CoNISMa, I-73100 Lecce, Italy
| | - C Gambi
- Department of Life and Environmental Science, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - S Bevilacqua
- Department of Biological and Environmental Sciences and Technology, University of Salento, CoNISMa, I-73100 Lecce, Italy
| | - A Terlizzi
- Department of Biological and Environmental Sciences and Technology, University of Salento, CoNISMa, I-73100 Lecce, Italy
| | - R Danovaro
- Department of Life and Environmental Science, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy; Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
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Sabeel RAO, Vanreusel A. Potential impact of mangrove clearance on biomass and biomass size spectra of nematode along the Sudanese Red Sea coast. MARINE ENVIRONMENTAL RESEARCH 2015; 103:46-55. [PMID: 25460061 DOI: 10.1016/j.marenvres.2014.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/28/2014] [Accepted: 11/01/2014] [Indexed: 06/04/2023]
Abstract
The potential effect of mangrove clearance on nematode assemblage biomass, biomass size spectra (NBSS) and abundance/biomass curves (ABC) was investigated in three sites representing a varying degree of mangrove clearance as well as in three stations established at each sites representing high-, mid- and low-water levels. Results revealed significant differences in sediment and nematode characteristics between the three sites. Although both the cleared and the intact mangrove had comparable biomass values, clear differences in biomass size spectra and abundance biomass curves were observed. The results suggested that the variation in the silt fraction and the food quality positively affected the total biomass. Mangrove clearance has caused a shift from a unimodal to a bimodal biomass size spectrum at all water levels, owing to an increase in smaller-bodied opportunistic non-selective deposit feeding nematodes. The ABC further confirmed the effect of clearance by classifying the cleared mangrove as moderately to grossly disturbed.
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Affiliation(s)
- Rasha Adam Osman Sabeel
- Ghent University, Marine Biology Research Group, Krijgslaan 281/S8, 9000 Ghent, Belgium; University of Bahri, Department of Fisheries, P.O. Box: 1660/11111, Khartoum, Sudan.
| | - Ann Vanreusel
- Ghent University, Marine Biology Research Group, Krijgslaan 281/S8, 9000 Ghent, Belgium
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Shin PKS, Cheung SG, Tsang TY, Wai HY. Ecology of artificial reefs in the subtropics. ADVANCES IN MARINE BIOLOGY 2014; 68:1-63. [PMID: 24981732 DOI: 10.1016/b978-0-12-800169-1.00001-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The application of artificial reefs (ARs) has a long history, and there is a wealth of information related to the design and performance of ARs in coastal and ocean waters worldwide. However, relatively fewer studies in the literature are focused on the response of benthic communities within the reef areas than those on fish attraction and fish production and on the settlement and colonization of epibiota on the AR structures, especially in the subtropics where seasonal differences and environmental conditions can be large. Recent advances in the understanding of the ecology of ARs in the subtropics are highlighted, with a focus on fish attraction versus fish production, development of epibiota on AR systems and responses of in situ benthic communities in the reef areas. Data are also presented on studies of trophic relationships in subtropical AR systems, and further research areas using analyses of biological traits, stable isotope signatures and fatty acid profiles in investigating the ecology of ARs are proposed.
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Affiliation(s)
- Paul K S Shin
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong.
| | - Siu Gin Cheung
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory in Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong
| | - Tsui Yun Tsang
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong
| | - Ho Yin Wai
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong
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