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Toxicity of trivalent chromium to early life stages of steelhead trout
Author(s) -
Stevens Donald G.,
Chapman Gary A.
Publication year - 1984
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.5620030114
Subject(s) - juvenile , hatching , salmo , chromium , trout , acute toxicity , biology , fish <actinopterygii> , acclimatization , toxicity , toxicology , stage (stratigraphy) , rainbow trout , fishery , chemistry , zoology , ecology , paleontology , organic chemistry
Acute and early life stage toxicity tests were conducted with trivalent chromium and steelhead trout ( Salmo gairdneri ). A 96‐h LC 50 of 4,400 μg/L chromium was obtained with two‐month‐old juvenile fish. Early life stage exposure from newly fertilized eggs to 30‐d post‐swimup produced complete mortality at 495 μg/L, and significantly reduced survival to hatch and to the end of the test at 157 and 89 μg/L, respectively. An early life stage test started with eyed eggs produced similar results, with hatching survival significantly reduced at 271 μg/L. An acute test conducted with fish surviving the early life stage test showed that no acclimation resulted from previous chromium exposure.