Freshwater lakes are sensitive ecosystem and respond to the episodic changes from its surrounding environment. The physico-chemical factors of water and biological processes determine the quality of water which in turn indicates the diversity of fauna and flora that the water would support. However, the ecological factors of lake correlating with parasitic isopods under natural conditions are p...

The health of fish can be affected by environmental factors (stress), nutrition as well as by pathogens. Stress in fish may be induced by various abiotic environmental factors such as changes in water temperature, pH, oxygen concentration and water pollutants including pesticides, insecticides (Meier et al., 1983; Lebelo et al., 2001), petroleum products and heavy metals (Witeska, 1999). Biotic...

In India, freshwater environments are experiencing serious threats to biodiversity, and there is an urgent priority for the search of alternative techniques to promote fish biodiversity conservation and management. With this aim, the present study was undertaken to assess the fish biodiversity within and outside a river protected area, and to evaluate whether the protected river area provides s...

Notopterus chitala is a member of the primitive teleost lineage and considered as commercially important food fish. To study concentration sodium potassium influence fish size condition factor on bioaccumulation these macro-elements, total 16 specimens N. were collected from River Indus. Mean (±SD) body weight, length was found 250.32±113.93 g, 32.93 ± 4.85 cm 0.647± 0.094. Fish samples oven dr...