High Microplastic Contamination in Juvenile Tri-Spine Horseshoe Crabs:A Baseline Study of Nursery Habitats in Northern Beibu Gulf,China  

作　　者：WANG Xueping LO Hoi Shing FU Yijian WU Zhou QIN Danmei HUANG Xing ZHU Jingmin CHEUNG Siu Gin KWAN Kit Yue 

机构地区：[1]College of Marine Sciences,Beibu Gulf University,Qinzhou,535011,China [2]Guangxi Key Laboratory of Marine Disaster in the Beibu Gulf,Qinzhou,535011,China [3]Department of Chemistry,City University of Hong Kong,Hong Kong SAR,China [4]State Key Laboratory of Marine Pollution,City University of Hong Kong,Hong Kong SAR,China [5]Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation,Qinzhou,535011,China

出　　处：《Journal of Ocean University of China》2022年第3期521-530,共10页中国海洋大学学报（英文版）

基　　金：the National Natural Science Foundation of China(No.41907320);the Natural Science Foundation of Guangxi Region(No.2019 JJA150043);the Guangxi BaGui Youth Scholars Programme,and Guangxi Recruitment Program of 100 Global Experts。

摘　　要：Microplastics(MPs)are ubiquitous in marine sedimentary environments.Their occurrence in horseshoe crabs and interactions with the sedimentary environment has not been determined.In this study,MPs,mostly microfibers,were found in all extracted gastrointestinal tract(GIT)samples of the juvenile Tachypleus tridentatus from the northern Beibu Gulf,China.The MP concentrations(4–53 items ind-1)were higher than those in most marine benthic invertebrates(<15 items ind-1)reported in Chinese waters,despite their generally low level in habitat sediments(9–1818 items kg-1).The correlation between the juveniles and sediments was not evident,but the abundance in juvenile horseshoe crab GITs decreased with ages.The findings were relevant to the life-history characteristics of the species,typically with limited dispersal capability and their spending nine years or longer time living in mangrove wetlands during low tides,with apparent ontogenetic changes in their diets.These baseline data enable a better understanding of MP availability in benthic macroinvertebrates,and the ecological risks present in the ecosystems.

关 键 词：horseshoe crab INVERTEBRATE fiber INTERTIDAL CELLOPHANE 

分 类 号：X55[环境科学与工程—环境工程] Q958[生物学—动物学]