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The importance of zooplankton, a heterogeneous assemblage of microscopic animals, in the trophic dynamics of freshwater ecosystems has long been recognized as these organisms, not only regulate the aquatic productivity, by occupying almost middle position in food chain, but also indicate environmental status in a given time. In addition, their diversity has assumed added importance during recent years due to the ability of certain species to indicate the ...
Fish Faunal Resources of Sunderban Estuarine System with Special Reference to the Biology of Some Commercially Important Species
Fish fauna of Sunderban estuarine system exhibit far greater diversity as compared to adjacent fresh or marine waters. While many of the species occurring in estuarine zone can tolerate wide range of salinity fluctuations and move freely in the entire salinity gradient during major part of the year, some others, mainly marine species, are restricted only to lower zones. Most species enter the estuarine zones and pass varying period of their life span for the ...
