Exposure to sublethal concentrations of tributyltin reduced survival, growth, and 20-hydroxyecdysone levels in a marine mysid SCIE SCOPUS

Cited 11 time in WEB OF SCIENCE Cited 13 time in Scopus
Title
Exposure to sublethal concentrations of tributyltin reduced survival, growth, and 20-hydroxyecdysone levels in a marine mysid
Author(s)
Kim, Bo-Mi; Saravanan, Manoharan; Lee, Do-Hee; Kang, Jung-Hoon; Kim, Moonkoo; Jung, Jee-Hyun; Rhee, Jae-Sung
KIOST Author(s)
Kang, Jung Hoon(강정훈)Kim, Moon Koo(김문구)Jung, Jee Hyun(정지현)
Publication Year
2018-09
Abstract
Tributyltin (TBT) is as an antifouling organotin compound used in boat paints. Although organotin-based antifouling agents have been banned on a global scale, the mode of action of TBT has been studied in numerous aquatic species because of its toxicity, persistence, bioaccumulation potential, and endocrine-disrupting characteristics. In this study, we conducted 96-h acute toxicity tests wherein we exposed juvenile and adult marine mysids to waterborne TBT. Over 4 weeks of exposure, mortality was dose-dependently increased in juveniles and adult mysids. To test sublethal effects of TBT on juvenile development, newborn juvenile mysids were exposed to 1, 5, or 10 ng L-1 TBT for 4 weeks. Subsequently, we measured morphological growth parameters and quantified the hormone ecdysterone (20-hydroxyecdysone: 20E), which controls molting in mysids. The lengths of the whole body, antennal scale, exopod, endopod, and telson were significantly smaller in the 5 and/or 10 ng L-1 TBT-exposed juvenile mysids than in control and DMSO-exposed groups, Levels of 20E were significantly lower at 5 and 10 ng L-1 TBT exposures. Additionally, the number of newly hatched juveniles was significantly lower from females previously exposed to 10 ng L-1 TBT. Our results indicate sublethal concentrations of TBT have inhibitory effects on the survival, growth, and production of juveniles. The lower 20E levels could be strongly associated with TBT-triggered inhibition.
ISSN
0141-1136
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/837
DOI
10.1016/j.marenvres.2018.06.006
Bibliographic Citation
MARINE ENVIRONMENTAL RESEARCH, v.140, pp.96 - 103, 2018
Publisher
ELSEVIER SCI LTD
Subject
ENDOCRINE DISRUPTION; ORGANOTIN COMPOUNDS; CRUSTACEAN; TOXICITY; SEDIMENT; NEOMYSIS; OSMOREGULATION; ENVIRONMENT; METABOLISM; BIOMARKERS
Keywords
Marine mysid; Tributyltin; Growth; Survival; 20-hydroxyecdysone
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCI LTD
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