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The tolerance of grass carp, Ctenopharyngodon idella Val., to aquatic herbicides
Author(s) -
Tooby T. E.,
Lucey J.,
Stott B.
Publication year - 1980
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1980.tb03736.x
Subject(s) - grass carp , biology , aquatic plant , fishery , carp , fish <actinopterygii> , aquatic animal , aquaculture , toxicology , agronomy , ecology , macrophyte
Because grass carp may feed selectively on water plants, additional conventional methods may be necessary for effective control of aquatic vegetation. For economic reasons aquatic herbicides are most likely to be used in conjunction with grass carp within an integrated aquatic weed control programme. The acutely lethal toxicities of ten herbicides to grass carp were measured. A preliminary evaluation of the risk to these fish showed that, when used at the recommended rate, the maximum herbicide concentration likely to be found in water should cause little harm to the fish, although attention should be given to the possible inhibition of feeding.