Potential Toxic Effects of Environmental Plastic Litter on resident wharf roach (Ligia exotica)

Title
Potential Toxic Effects of Environmental Plastic Litter on resident wharf roach (Ligia exotica)
Author(s)
Choi, You Mi; Shin, Dong Ju; Jang, Mi; Cho, You Na; Han, Gi Myung; Hong, Sang Hee; Shim, Won Joon; Jung, Jee Hyun
KIOST Author(s)
Choi, Youmi(최유미)Shin, Dong Ju(신동주)Jang, Mi(장미)Cho, You Na(조유나)Han, Gi Myung(한기명)Hong, Sang Hee(홍상희)Shim, Won Joon(심원준)Jung, Jee Hyun(정지현)
Alternative Author(s)
최유미; 신동주; 장미; 조유나; 한기명; 홍상희; 심원준; 정지현
Publication Year
2021-11-04
Abstract
Although many field observations of microplastic contamination have been reported in marine environments, fewer studies have clarified the adverse effects derived from microplastic contamination in marine resident species. This is the first report to evaluate the toxic effects of environmental in situ plastic litter exposure on wharf roaches (Ligia exotica). L. exotica occupies an important ecological position as a detritus consumer. An experimental survey was conducted from May–June 2019 in two South Korean nearshore sites: Maemul-do [microplastic-contaminated] and Nae-do [microplastic-uncontaminated]. The average microplastic abundance (>20 μm) in L. exotica was higher at Maemul-do (50.56 particles/individual) than at Nae-do (1.00 particles/individual). The composition of microplastics was dominated by expanded polystyrene in L. exotica from Maemul-do (93%). Comparative transcriptomic analysis revealed significantly altered expression of genes associated with metabolic processes, mitotic cell cycle regulation and the immune system (cutoff: q<0.05) in L. exotica from Maemul-do. Our findings highlight the importance of understanding the toxic effects of translocated microplastics in resident species to better manage microplastic pollution using bioindicators.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41773
Bibliographic Citation
2021년도 한국해양학회 추계학술대회, pp.332, 2021
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
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