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Barry PJ, Silburn B, Bakir A, Russell J, Tidbury HJ. Seafloor macrolitter as a settling platform for non-native species: A case study from UK waters. MARINE POLLUTION BULLETIN 2024; 204:116499. [PMID: 38796991 DOI: 10.1016/j.marpolbul.2024.116499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024]
Abstract
Marine litter is increasingly recognised as a vector for the spread of non-native species (NNS). However, our understanding of its role in the propagation of NNS in UK waters remains limited. As part of the Clean Seas Environmental Monitoring Programme, we opportunistically analysed seafloor macrolitter items trawled from various locations around the coast of England and Wales and examined each for the presence of NNS. Of the 41 litter items analysed, we identified a total of 133 taxa, including two non-native and four cryptogenic species. This confirms that NNS are settling on seafloor macrolitter in UK waters and that these can be detected using morphological taxonomic analysis. Furthermore, we propose a methodology to classify litter based on size, rugosity and polymer/material type to explore whether there were detectable patterns governing community composition and litter characteristics. This exploratory investigation provides evidence to inform future risk assessments of NNS vectors and pathways.
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Affiliation(s)
- P J Barry
- Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft NR33 0HT, United Kingdom.
| | - B Silburn
- Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft NR33 0HT, United Kingdom.
| | - A Bakir
- Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft NR33 0HT, United Kingdom.
| | - J Russell
- Centre for Environment Fisheries and Aquaculture Science, Pakefield Road, Lowestoft NR33 0HT, United Kingdom.
| | - H J Tidbury
- Centre for Environment Fisheries and Aquaculture Science, Barrack Road, Weymouth DT4 8UB, United Kingdom.
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De K, Sautya S, Dora GU, Gaikwad S, Katke D, Salvi A. Mangroves in the "Plasticene": High exposure of coastal mangroves to anthropogenic litter pollution along the Central-West coast of India. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:160071. [PMID: 36356762 DOI: 10.1016/j.scitotenv.2022.160071] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Anthropogenic litter is a ubiquitous stressor in the global ocean, and poses ominous threats to oceanic biodiversity and ecosystem functioning. At the terrestrial-ocean interface, tropical mangrove forests are subject to substantial exposure to mismanaged litter from inland and marine sources. While the effects of litter in different marine ecosystems are well-documented, research on the ecological consequences of litter pollution on mangroves remain nascent stage. Here, we investigated anthropogenic litter concentration, composition, probable sources, and impact on coastal mangroves along the Central West coast of India. The mean concentration of trapped litter was measured 8.5 ± 1.9 items/m2 (ranged 1.4 ̶ 26.9 items/m2), and 10.6 ± 0.5 items/tree (ranged 0 ̶ 85 items/tree) on the mangrove floor and mangrove canopy, respectively. Plastic dominated 83.02 % of all litter deposited on the mangrove forest floor and 93.4 % of all entangled litter on mangrove canopy. Most litter comprised single-use plastic products across all surveyed locations. Mangrove floor cleanliness was assessed using several indices, such as Clean Coast Index, General Index, Hazardous Items Index, and Pollution Load Index, reiterating an inferior cleanliness status. The pollution load index indicates "Hazard level I" plastic pollution risk across the mangroves. Litter concentration differed markedly across all sites. However, a significantly higher concentration of stranded litter was detected in the densely populated urban agglomeration and rural areas with inadequate solid waste management. Probable sources of litter indicate land-based (local) and sea-originated (fishing). Supportive information on the transport and accumulation of marine litter is examined based on the National Centers for Environmental Prediction (NCEP) Climate Forecast System (CFS) model version 2 reanalysis of surface wind and current pattern across the Arabian Sea followed by MIKE simulated tide-induced coastal current. Mangrove pneumatophores and branches were found to be damaged by entangled plastics. Hence, determining litter quantum and their probable input source is pivotal in mitigating anthropogenic litter impact on mangrove ecosystems and fostering mangrove conservation. Overall, results envisage that stringent enforcement, implementation of an integrated solid waste management framework, and general behavioral change of the public are crucial to mitigate litter/plastic pollution.
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Affiliation(s)
- Kalyan De
- Laboratory of Benthic Trait Analysis (L-BETA), CSIR- National Institute of Oceanography, Regional Centre-Mumbai, Maharashtra 400053, India.
| | - Sabyasachi Sautya
- Laboratory of Benthic Trait Analysis (L-BETA), CSIR- National Institute of Oceanography, Regional Centre-Mumbai, Maharashtra 400053, India.
| | - G Udhaba Dora
- Physical Oceanography Division, CSIR- National Institute of Oceanography, Regional Centre-Mumbai, Maharashtra 400053, India
| | - Santosh Gaikwad
- Laboratory of Benthic Trait Analysis (L-BETA), CSIR- National Institute of Oceanography, Regional Centre-Mumbai, Maharashtra 400053, India
| | - Dinesh Katke
- Laboratory of Benthic Trait Analysis (L-BETA), CSIR- National Institute of Oceanography, Regional Centre-Mumbai, Maharashtra 400053, India
| | - Aditya Salvi
- Laboratory of Benthic Trait Analysis (L-BETA), CSIR- National Institute of Oceanography, Regional Centre-Mumbai, Maharashtra 400053, India
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3
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Xia F, Liu H, Zhang J, Wang D. Migration characteristics of microplastics based on source-sink investigation in a typical urban wetland. WATER RESEARCH 2022; 213:118154. [PMID: 35149363 DOI: 10.1016/j.watres.2022.118154] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Although urban wetlands are key transition sub-ecosystems connecting urban microplastic pollution sources to freshwater environments, few studies have reported microplastic migration characteristics in urban wetlands. Recent studies have only focused on the occurrence of microplastics in wetlands. Thus, this study investigated the occurrence of microplastics in sources and sinks (surface water, sediment, effluent, and agricultural waste) and analyzed the migration characteristics of microplastics in a typical urban wetland, namely the Huixian Wetland, Guilin. The abundance of microplastics was in the ranges of 16.5-89.0 items/L, 16.8 × 103-52.8 × 103 items/kg, and 172.0-605.0 items/L in the surface water, sediment, and effluent, respectively. Most of the microplastic settlement at 1-2 km downstream of the source of pollution in this wetland presented with a total decrease of 53.7-61.4% for microplastics in the surface water, whereas microplastics of smaller sizes (100-500 µm) were retained more in surface water than the smallest (50-100 µm) and large (500-5000 µm) microplastics. Clustering analysis and principal component analysis showed that effluent was the major source of microplastics in the urban section of this wetland, and agricultural wastes also played a role in the suburbs. This first quantification of small-sized (50-500 µm) microplastic removal throughout an urban wetland provides key reference information for controlling the environmental risk of microplastics in aquatic environments.
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Affiliation(s)
- Feiyang Xia
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Hongtao Liu
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Jun Zhang
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China.
| | - Dunqiu Wang
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
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Toma M, Betti F, Bavestrello G, Cattaneo-Vietti R, Canese S, Cau A, Andaloro F, Greco S, Bo M. Diversity and abundance of heterobranchs (Mollusca, Gastropoda) from the mesophotic and bathyal zone of the Mediterranean Sea. THE EUROPEAN ZOOLOGICAL JOURNAL 2022. [DOI: 10.1080/24750263.2022.2033859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- M. Toma
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università di Genova, Genova, Italy
| | - F. Betti
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università di Genova, Genova, Italy
| | - G. Bavestrello
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università di Genova, Genova, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - R. Cattaneo-Vietti
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università di Genova, Genova, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
| | - S. Canese
- Dipartimento Infrastrutture di ricerca per le risorse biologiche Marine, Implementazione tecnologica e Robotica Marina, Stazione Zoologica Anton Dohrn, Roma, Italy
| | - A. Cau
- Dipartimento di Scienze della Vita e dell’Ambiente, Università di Cagliari, Italy
| | - F. Andaloro
- Dipartimento Infrastrutture di ricerca per le risorse biologiche Marine, Implementazione tecnologica e Robotica Marina, Stazione Zoologica Anton Dohrn, Roma, Italy
| | - S. Greco
- Dipartimento Infrastrutture di ricerca per le risorse biologiche Marine, Implementazione tecnologica e Robotica Marina, Stazione Zoologica Anton Dohrn, Roma, Italy
| | - M. Bo
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università di Genova, Genova, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Roma, Italy
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Subba Rao T, Murthy PS, Veeramani P, Narayanan DS, Ramesh R, Jyothi BN, Muthukumaran D, Murugesan M, Vadivelan A, Dharani G, Santhanakumar J, Ramadass GA. Assessment of biogrowth assemblages with depth in a seawater intake system of a coastal power station. BIOFOULING 2021; 37:506-520. [PMID: 34139900 DOI: 10.1080/08927014.2021.1933457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 05/14/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
Marine biogrowth infestation of a seawater intake system was investigated. A digital camera fixed onto a skid was used to record the biogrowth at intervals of 5 m up to a depth of 55 m. Divers inspected the intake shaft and collected the biogrowth samples for biomass estimation. A biomass density of 7.5 kg m-2 and 28.2 kg m-2 was recorded at 5 and 30 m depths respectively. Inspection by the divers revealed that hard-shelled organisms such as oysters and brown and green mussels were observed in plenty up to a thickness of 15 cm and bryozoans grew as epibionts. At lower depths (<40 m), hydroids grew on the shells of green mussels along with silt accumulation. The biofouling community was composed of 46 organisms, exhibiting variation in distribution and abundance. The study explains the extent and type of marine biogrowth phenomena with depth and describes biofouling preventive methods.Supplemental data for this article is available online at https://doi.org/10.1080/08927014.2021.1933457 .
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Affiliation(s)
- T Subba Rao
- Biofouling & Thermal Ecology Section, Water & Steam Chemistry Division, Bhabha Atomic Research Centre Facilities, Kalpakkam, India
- Homi Bhabha National Institute, Mumbai, India
| | - P S Murthy
- Biofouling & Thermal Ecology Section, Water & Steam Chemistry Division, Bhabha Atomic Research Centre Facilities, Kalpakkam, India
- Homi Bhabha National Institute, Mumbai, India
| | - P Veeramani
- Biofouling & Thermal Ecology Section, Water & Steam Chemistry Division, Bhabha Atomic Research Centre Facilities, Kalpakkam, India
| | - D S Narayanan
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
| | - R Ramesh
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
| | - B N Jyothi
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
| | - D Muthukumaran
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
| | - M Murugesan
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
| | - A Vadivelan
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
| | - G Dharani
- Marine Biotechnology Division, National Institute of Ocean Technology, Chennai, India
| | - J Santhanakumar
- Marine Biotechnology Division, National Institute of Ocean Technology, Chennai, India
| | - G A Ramadass
- Deep Sea Technology Group, National Institute of Ocean Technology, Chennai, India
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Gilman E, Musyl M, Suuronen P, Chaloupka M, Gorgin S, Wilson J, Kuczenski B. Highest risk abandoned, lost and discarded fishing gear. Sci Rep 2021; 11:7195. [PMID: 33785766 PMCID: PMC8009918 DOI: 10.1038/s41598-021-86123-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
Derelict abandoned, lost and discarded fishing gear have profound adverse effects. We assessed gear-specific relative risks from derelict gear to rank-order fishing methods based on: derelict gear production rates, gear quantity indicators of catch weight and fishing grounds area, and adverse consequences from derelict gear. The latter accounted for ghost fishing, transfer of microplastics and toxins into food webs, spread of invasive alien species and harmful microalgae, habitat degradation, obstruction of navigation and in-use fishing gear, and coastal socioeconomic impacts. Globally, mitigating highest risk derelict gear from gillnet, tuna purse seine with fish aggregating devices, and bottom trawl fisheries achieves maximum conservation gains. Locally, adopting controls following a sequential mitigation hierarchy and implementing effective monitoring, surveillance and enforcement systems are needed to curb derelict gear from these most problematic fisheries. Primary and synthesis research are priorities to improve future risk assessments, produce the first robust estimate of global derelict gear quantity, and assess the performance of initiatives to manage derelict gear. Findings from this first quantitative estimate of gear-specific relative risks from derelict gear guide the allocation of resources to achieve the largest improvements from mitigating adverse effects of derelict gear from the world’s 4.6 million fishing vessels.
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Affiliation(s)
- Eric Gilman
- The Nature Conservancy, California Oceans Program, Santa Barbara, USA.
| | | | - Petri Suuronen
- Natural Resources Institute Finland (Luke), Helsinki, Finland
| | - Milani Chaloupka
- Ecological Modelling Services Pty Ltd & Marine Spatial Ecology Lab, University of Queensland, Brisbane, Australia
| | - Saeid Gorgin
- Department of Fisheries, College of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgān, Iran
| | - Jono Wilson
- The Nature Conservancy, California Oceans Program, Santa Barbara, USA.,Bren School of Environmental Science & Management, University of California Santa Barbara, Santa Barbara, USA
| | - Brandon Kuczenski
- Bren School of Environmental Science & Management, University of California Santa Barbara, Santa Barbara, USA
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