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Some Effects of Sublethal Concentrations of Sodium Arsenite on Bluegills and the Aquatic Environment
Author(s) -
Gilderhus Philip A.
Publication year - 1966
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1966)95[289:seosco]2.0.co;2
Subject(s) - sodium arsenite , biology , invertebrate , plankton , fish <actinopterygii> , fish kill , fauna , arsenic , arsenite , flesh , sodium , zoology , ecology , fishery , chemistry , algal bloom , phytoplankton , organic chemistry , nutrient
Bluegills were exposed to sodium arsenite at various concentrations and treatment frequencies in outdoor pools. The effects of the treatments on the fish and invertebrates in the pools were assessed. Applications totaling 4.0 ppm or more of NaAsO 2 during the experiment were reflected in reduced survival and growth of the fish, with immature fish being affected to a greater degree than adults. Some pathological changes were observed in adults. Substantial residues of arsenic were found in the water, bottom soil, and throughout the organs and flesh of the bluegills at the termination of the experiment. Bottom fauna and plankton populations were reduced or inhibited in several pools with the highest concentrations of the herbicide.