by Centre of Advanced Study in Zoology, Fish Endocrinology Laboratory, Banaras Hindu University in Varanasi, India .
Written in English
|Statement||principal investigator, T.P. Singh.|
|The Physical Object|
|Pagination||1 v. (various foliations) :|
The effects of pesticides on life in fresh waters BY A. V. HOLDEN Freshwater Fisheries Laboratory, Faskally, Pitlochry, Scotland About sixty pesticides are estimated to be used in Britain in circumstances where some contamination of fresh waters could occur. Apart from major fish kills, most of the evidence. Pesticide usage in Africa. The economy of Africa is largely dependent on agriculture, and nearly 59% of the population makes their living from farming .Despite that, the African continent has a contribution of 2–4% of global market share of pesticides which also accounts for the lowest rate of their usage in the world .Due to increasing population, the food demand has been projected to Cited by: Pesticides residues reach into the aquatic environment by surface run-off causing risk hazards for aquatic flora and fauna, fishes being one of the most affected organism. These residues enter in. Chronic effects of Phosphamidon pesticide on freshwater fish Labeo rohita for 15 days exposure were analyzed. Decreased RBC, WBC count and Haemoglobin level in experimental group than control.
Liong PC, Hamzah WP and Murugan V. (). Toxicity of some pesticides towards freshwater fishes. Malaysian Agric J 54(3): Liroff RA. (). Balancing risks of DDT and malaria in the global POPs treaty. Pestic Safety News 4: 3. Little EE. (). Behavioral indicators of sublethal toxicity of rainbow trout. Arch Environ. Impact of agricultural pesticides on the. enclocrinology of some freshwater fishes. Final report and Erythrocyte sedimentation rate (ESR) showed a negative impact of pesticide treated fishes. Cagauan A.G. () The Impact of Pesticides on Ricefield Vertebrates with Emphasis on Fish. In: Pingali P.L., Roger P.A. (eds) Impact of Pesticides on Farmer Health and the Rice Environment. Natural Resource Management and Policy, vol 7. Introduction. Pesticides and agrochemicals, in general, became an important component of worldwide agriculture systems during the last century, allowing for a noticeable increase in crop yields and food production (Alexandratos and Bruinsma ).Notwithstanding, the exponentially growing human population further stresses the need for enhancing food production.
Pesticides may contaminate and affect fishery waters in a number of ways, depending in part on the nature of the chemical used. A herbicide may destroy vegetation and drastically change the environment of the small wild fishes, invertebrates, phytoplankton and other fish food organisms. Consequently, thes witnessed a marked growth in synthetic pesticides like DDT, aldrin, dieldrin, endrin, parathion, and 2,4-D. In the s, the application of pesticides in agriculture was considered advantageous, and no concern about the potential risks of these chemicals to the environment and the human health existed. Agricultural pesticides have the have been recognized as a problem for some potential for biological impact throughout time, the magnitude of loss and frequency the environment because of the continuous distribution of pesticide concentrations and exchange of pesticides among soils, living yields from some agricultural lands are just. Some of these kills have been large, involving thousands of fishes, as well as frogs, turtles, mussels, water birds, and other wildlife. Fish and other wildlife species, including rare and endangered ones like the peregrine falcon, bald eagle, and osprey, have been victims of pesticide .