Microplastics in shrimps: a study from the trawling grounds of north eastern part of Arabian Sea.

Autor: Gurjar UR; Fisheries Resource Harvest and Post-Harvest Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India., Xavier M; Fisheries Resource Harvest and Post-Harvest Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India. martinxavier@cife.edu.in., Nayak BB; Fisheries Resource Harvest and Post-Harvest Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India., Ramteke K; Fisheries Resource Harvest and Post-Harvest Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India., Deshmukhe G; Fisheries Resource Harvest and Post-Harvest Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India., Jaiswar AK; Fisheries Resource Harvest and Post-Harvest Management Division, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India., Shukla SP; Aquatic Environmental Management Department, ICAR-Central Institute of Fisheries Education (CIFE), Mumbai, Maharashtra, 400061, India.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2021 Sep; Vol. 28 (35), pp. 48494-48504. Date of Electronic Publication: 2021 Apr 28.
DOI: 10.1007/s11356-021-14121-z
Abstrakt: Accumulation of microplastics (MPs) in marine organisms poses an imminent environmental threat and health risk due to the possibility of trophic transfer of accumulated MPs in ecologically important food chains. In this context, a field-level study was conducted on the fishing grounds of the north eastern part of the Arabian Sea through experimental fishing, and the gastrointestinal tracts (GT) of three different species of shrimps (n=180) were examined for the incidence of microplastics. The results showed that all shrimp caught from the fishing grounds had significant levels of MPs in the gastrointestinal tracts. A total number of 1220 microplastic items were recorded from the pooled samples, with an average of 6.78 ± 2.80 items per individual. The gastrointestinal tract showed an average number of 70.32 ± 34.67 MPs per gram of the gut material. The MPs with the size range of 100-250 μm were the most abundant form found in the shrimp species analyzed. Among the colored MP particles, black color was the most dominant (30.16%) form of MP. Fibers, fragments, pellets, beads, and films were the common morphotypes; however, fibers showed an occurrence of 39.40%, 47.39%, and 41.89% in the GTs of Metapenaeus monoceros, Parapeneopsis stylifera, and Penaeus indicus, respectively. In the present study, six types of plastic polymers were identified from the GTs of the studied samples. The findings confirm the presence of microplastics in the natural habitats of shrimps beyond the coast and indicate that shrimps caught from these coastal fishing grounds contain MPs in their gut. The findings underline the immediate scientific intervention for the microplastic reduction in the marine environment.
(© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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