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Acute toxicity of cadmium, copper, mercury and zinc to Tropocyclops prasinus mexicanus (Cyclopoida, copepoda) from three quebec lakes
Author(s) -
Lalande Marc,
PinelAlloul B.
Publication year - 1986
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620050113
Subject(s) - mercury (programming language) , cadmium , cyclopoida , copepod , environmental chemistry , toxicity , zinc , ec50 , ecotoxicology , metal toxicity , copper , heavy metals , environmental science , chemistry , toxicology , biology , ecology , crustacean , biochemistry , organic chemistry , computer science , in vitro , programming language
This study deals with cultures of Tropocyclops prasinus mexicanus , a Cyclopoid copepod from three Quebec lakes (one polluted and two unpolluted), in a comparative toxicity test involving four heavy metals. Experiments were performed according to a static toxicity protocol. The 48‐h EC50 of each individual metal and of the combination of metals were determined for each culture. The overall toxicity trend is mixture > Hg > Cu ≥ Cd ≥ Zn. Cultures from unpolluted and low‐hardness lakes showed lower EC50 mean values than did the strain originating from the polluted lake with high water hardness.