Tissue Changes in Puffers Exposed to Methoxychlor and Methyl Parathion PDF Download
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Author: Ronald Eisler Publisher: ISBN: Category : Insecticides Languages : en Pages : 18
Book Description
Adult northern puffers were exposed for periods up to 45 days to either 30 parts per billion (ppb) of the organochloride insecticide methoxychlor, 20, 200 ppb of the organophosphorous insecticide methyl parathion, or to a combination of 15 ppb of methoxychlor and 10, 100 ppb of methyl parathion. These concentrations will produce approximately 5 percent mortality in 96 hours under the conditions of the experiment. Profiles were constructed on the effects of each insecticide on blood and tissue components. The visual patterns provided by these profiles suggest a means of identifying unfavorable environmental conditions before the appearence of obvious morphological or physiological changes.
Author: Ronald Eisler Publisher: ISBN: Category : Insecticides Languages : en Pages : 18
Book Description
Adult northern puffers were exposed for periods up to 45 days to either 30 parts per billion (ppb) of the organochloride insecticide methoxychlor, 20, 200 ppb of the organophosphorous insecticide methyl parathion, or to a combination of 15 ppb of methoxychlor and 10, 100 ppb of methyl parathion. These concentrations will produce approximately 5 percent mortality in 96 hours under the conditions of the experiment. Profiles were constructed on the effects of each insecticide on blood and tissue components. The visual patterns provided by these profiles suggest a means of identifying unfavorable environmental conditions before the appearence of obvious morphological or physiological changes.
Author: R. E. Putz Publisher: ISBN: Category : Cryptobia Languages : en Pages : 32
Book Description
Studies on two hemoflagellates of fish were carried out to determine biological parameters: host range, vector relations, in vivo culture, in vitro culture, pathogenicit, and cryogenic preservation.
Author: Nilola N. Fijan Publisher: ISBN: Category : Channel catfish virus disease Languages : en Pages : 16
Book Description
In epizootics of channel catfish virus diseasse (CCVD) at four widely separated fish farms in 1968, affected fry and fingerlings spiraled, hung in a vertical position with head at the surface, or were distressed. In various combinations were edema, hemorrages, and anemia. The disease had a peracute to acute course, and stress to the fish preceded most epizootics. The virus induced formation of syncytial cells in affected cultures, which is considered at present to be of diagnostic significance. Secondary bacterial infections were found in fish with CCVD. Columnaris infection masked the symptoms of the virus disease.
Author: Murty Publisher: CRC Press ISBN: 1351085824 Category : Medical Languages : en Pages : 155
Book Description
The present work is the first major attempt at reviewing comprehensively all the available information about the environmental fate and behaviour of the xenobiotic chemicals.
Author: Ronald Eisler
Author: Ronald Eisler
Author: 
Author: 
Author: United States. Bureau of Sport Fisheries and Wildlife
Author: United States. Bureau of Sport Fisheries and Wildlife
Author: R. E. Putz
Author: Nilola N. Fijan
Author: United States. Superintendent of Documents
Author: Murty
Author: