Toxicological effects of irregularly shaped and spherical microplastics in a marine teleost, the sheepshead minnow (Cyprinodon variegatus) SCIE SCOPUS

Cited 158 time in WEB OF SCIENCE Cited 163 time in Scopus
Title
Toxicological effects of irregularly shaped and spherical microplastics in a marine teleost, the sheepshead minnow (Cyprinodon variegatus)
Author(s)
Choi, Jin Soo; Jung, Youn-Joo; Hong, Nam -Hui; Hong, Sang Hee; Park, June-Woo
KIOST Author(s)
Hong, Sang Hee(홍상희)
Publication Year
2018-04
Abstract
The increasing global contamination of plastics in marine environments is raising public concerns about the potential hazards of microplastics to environmental and human health. Microplastics formed by the breakdown of larger plastics are typically irregular in shape. The objective of this study was to compare the effects of spherical or irregular shapes of microplastics on changes in organ distribution, swimming behaviors, gene expression, and enzyme activities in sheepshead minnow (Cyprinodon variegatus). Both types of microplastics accumulated in the digestive system, causing intestinal distention. However, when compared to spherical micro plastics, irregular microplastics decreased swimming behavior (i.e., total distance travelled and maximum velocity) of sheepshead minnow. Both microplastics generated cellular reactive oxygen species (ROS), while ROS-related molecular changes (i.e., transcriptional and enzymatic characteristics) differed. This study provides toxicological insights into the impacts of environmentally relevant (fragmented) microplastics on fish and improves our understanding of the environmental effects of microplastics in the ecosystem.
ISSN
0025-326X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/984
DOI
10.1016/j.marpolbul.2018.02.039
Bibliographic Citation
MARINE POLLUTION BULLETIN, v.129, no.1, pp.231 - 240, 2018
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
OXIDATIVE STRESS; ENDOCRINE DISRUPTION; PLASTIC DEBRIS; FISH; INGESTION; POLYETHYLENE; ENVIRONMENT; POLLUTANTS; EXPOSURE; SEA
Keywords
Microplastics; Sheepshead minnow; Fragmentation; Behavior; Gene expression; Tissue distribution
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
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