Does the microplastics ingestion patterns and polymer composition vary across the oceanic zones? A case study from the Indian coast.

Autor: Devi SS; Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 69551, Kerala, India., Saifudeen N; Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 69551, Kerala, India., Kumar KS; Department of Future Studies, University of Kerala, Thiruvananthapuram 69551, Kerala, India., Kumar AB; Department of Aquatic Biology and Fisheries, University of Kerala, Thiruvananthapuram 69551, Kerala, India. Electronic address: bijupuzhayoram@gmail.com.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Jul; Vol. 204, pp. 116532. Date of Electronic Publication: 2024 Jun 01.
DOI: 10.1016/j.marpolbul.2024.116532
Abstrakt: This study explores microplastic (MP) presence in the gastrointestinal tracts of deep-sea fish from the Central Indian Ocean, off the Indian coast. Among the 27 species examined, 19 showed MP contamination, averaging 2.68 ± 0.30 (±SE) MPs per individual. Polymer analysis via FTIR and micro-Raman identified several types, including polyethylene terephthalate (PET), polyvinyl alcohol (PVA), polypropelene (PP), polyvinyl acetate (PVC), polyurethane (PU), polytetrafluoroethylene (PTFE), polyaniline (PANI), polymethyl methacrylate (PMMA), and polyethersulfone (PES), with PET being the most prevalent (33.33 %). MP ingestion was higher in benthopelagic fish and those at higher trophic levels, as indicated by comparisons across oceanic zones. Niche partitioning analysis suggests feeding behaviour as a primary influencer of MP ingestion in deep-sea fish rather than habitat or trophic level. The study proposes the potential use of deep-sea fish as indicators for assessing microplastic pollution across oceanic zones and deep-sea regions through bycatch monitoring.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: A Biju Kumar reports was provided by Erasmus Plus. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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