Bindu Bhaskaran, A B; Dr.Mohammed Salih,K Y(Cochin University Of Science And Technology, March 14, 2011)
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Abstract:
Fishes are one of the most important members of the aquatic food chain, and
through them some toxicants may reach human beings as well. The selection of
organisms for toxicity test is mainly based on certain criteria like its ecological
status, position within the food chain, suitability for laboratory studies, genetically
stable, uniform populations and adequate background data on the organism
(Buikema et al., 1982). The species selected for the present study Etroplus
maculatus satisfy most of the above protocols. Rechten (1980) opined it as a
laboratory favorite of fish researchers. However, there are difficulties in the rise of
fishes for pollution assessment impact. Most important of these is our limited
understanding of the mechanism of toxicity. The interpretation of the significance or specificity of a measured biological response could there for become difficult.
Not withstanding these limitations, attempts have been made to the normal
haematology and to analyze the impact of heavy metal at realistic levels to the
experimental media, on the haematology, and enzymatic activity and histology of
Etroplus maculatus
Description:
Dept. of Marine Biology, Microbiology and Biochemistry
Cochin University of Science and Technology
Gopalakrishnan, K S; Dr.Kuttyamma, V J(Cochin University of Science and Technology, February , 1990)
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Abstract:
The present study involved investigation of the lethal and sublethal effects of three pesticides individually. The pesticides are the commercial formulations of DDT (organochlorine).Dime—
cron (organophosphate) and Gramoxone (paraquat dichloride).Aspects like individual toxicity, modulations in the activities of some selected enzymes, consequent to exposure to sub lethal levels of pesticides, sub lethal effects onperipheral haematology and alterations caused on the tissue architecture of brain, gills and liver, have been documented. Attempts have been made to analyse the impact of pesticides, added at realistic Levels to the experimental media, on the life and activity of Etroplus maculatus
Description:
Division of Pkuflxua Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Tehnology