Acute Toxicity of Some Organic Insecticides to Three Species of Salmonids and to the Threespine Stickleback
- 1 July 1961
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 90 (3) , 264-268
- https://doi.org/10.1577/1548-8659(1961)90[264:atosoi]2.0.co;2
Abstract
The toxicity of several organic insecticides to coho (Oncorhynchus kisutch) and chinook salmon (O. tshawytscha), rainbow trout (Salmo gairdneri), and the threespine stickleback (Gasterosteus aculeatus) was determined. Toxaphene, aldrin, dieldrin, DDT, lindane, methoxychlor, heptachlor, chlordane, endrin, Guthion, malathion, Co‐Ral, and Sevin were tested. Toxicity was determined at 20° C. in standing water bioassays which lasted 96 hours. Endrin was the most toxic substance tested; the 96‐hour median tolerance limit (TLm) for coho salmon was 0.51 parts per billion. With the exception of Co‐Ral and Sevin, the 96‐hour TLm values of all insecticides tested were near 100 parts per billion (0.1 p.p.m.), or much less. The toxicity of the insecticides to threespine sticklebacks in waters of 5 and 25 parts per thousand salinity was not markedly different at the two salinities.This publication has 0 references indexed in Scilit: