期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 92, 期 -, 页码 150-154出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2013.03.016
关键词
Golden mussel; Chemical control; Invasive species; Toxicology
资金
- foundation for research from the State of Minas Gerais (Fapemig)
- Vale S.A [CRA-RDP-00097-10]
- CNPq
- Capes
Macrofouling bivalves are considered an ecological and technological problem worldwide. Control measures have been researched with Limnoperna fortunei, but without success. The aim of the manuscript is to test some alternatives to regulate this harmful invasive mollusk. Mortality and behavioral response (shell gaping) of Limnoperna fortunei exposed to three chemical compounds were evaluated. Values for LC50 96 h were: 0.25 (0.24-0.27) mg/L NH3-N, 11.10(7.45-16.55) mg/L MXD-100 and 88.51 (74.61-105.01) mg/L NaOH. Reduced gaping was observed beginning at concentrations of 0.31 mg/L (NH3-N), 100 mg/L (MXD-100) and 160 mg/L (NaOH) and increased above these values. The percentage of individuals gaping after two hours at LC50 96 h differed significantly (chi(2)=79.9; DF=3; p<0.001) in MXD-100 (50%), NaOH (0%), NH3-N (96.7%) and the controls (933%). This study contributes to the understanding of the relationship between toxicity and behavioral effects of some toxicants in L. fortunei. (C) 2013 Elsevier Inc. All rights reserved.
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