alexa Bio-Manipulation Be Related to Fisheries

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Bio-Manipulation Be Related to Fisheries

Fish diets as a source of animal protein has been in increasing demand recently.\ 㶤is has triggered high pressures in fisheries and
aquaculture activities. Although technological advancement is helpful in increasing overall production, the quality of fish products is becoming the central issue. It has been established that the aquatic resources far from human activities can receive pollutants to considerable amounts by long-range transportation through dry as well as wet depositions. 㶤e aquatic resources from remote areas could contain high amount of pollutants such as mercury (Hg) and persistent
organic pollutants (POPs) as opposed to the thought that so called ‘pristine environments’ were safer. 㶤ere are diቢerent mechanisms that pose risk of high concentrations of Hg and POPs in aquatic resources, particularlyfish Longer the exposure time higher the concentrations, i.e. older fish generally accumulate higher amount of contaminants (bioaccumulation). Similarly, higher the trophic position, higher the concentrations of biomagnifying pollutants such as Hg and POPs, a process called biomagnification.

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