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Acute and chronic effects of tributyltin on a chesapeake bay copepod
Author(s) -
Hall Lenwood W.,
Bushong Steven J.,
Hall W. Scott,
Johnson W. Edward
Publication year - 1988
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.5620070107
Subject(s) - tributyltin , copepod , chesapeake bay , estuary , chronic toxicity , toxicity , bay , ecotoxicology , acute toxicity , environmental chemistry , biology , toxicology , chemistry , ecology , crustacean , oceanography , organic chemistry , geology
One 72‐h acute and two 13‐d chronic flow‐through tributyltin (TBT) toxicity experiments were conducted with the estuarine zooplankter Eurytemora affinis . The 48‐h and 72‐h LC50s were 2.2 and 0.6 μg/L TBT, respectively, based on measured concentrations. TBT concentrations of 100 ng/L significantly reduced the survival of neonates (young) after 6 d of exposure in the first chronic experiment. Significant adverse effects were not reported at TBT concentrations ranging from 12.5 to 100 ng/L in the second chronic test. However, a significant adverse effect was noted at 200 ng/L in that test. TBT concentrations reported in various marina areas of the northern Chesapeake Bay exceed toxic concentrations found for E. affinis in these laboratory studies.