STUDY ON PHYSICOCHEMICAL PROPERTIES AND THEIR IMPACT ON ZOOPLANKTON DIVERSITY OF SINGODA RIVER, KODINAR GUJARAT, INDIA (original) (raw)

Physico-chemical property of water, zooplanktons and Diversity of plankton Plankton refers to plants and animals that drift with the ocean currents and fresh river water .they habitants in the open waters of the sea and fresh river water. Zooplankton (from Greek zoon, or animal) are Small protozoans or metazoans (e.g. crustaceans and other animals) that feed on other plankton and telonemia. Some of the eggs and larvae of larger animals, such as fish, crustaceans and annelids, are included in Zooplankton. Physico-chemical parameters are very important factors that play a significant role in river zooplankton diversity and fluctuation. We evaluated impact of Abiotic factor on plankton diversity during pre, middle and post winter analysis of Singoda River Copy Right, IJAR, 2017,. All rights reserved.Plankton is organisms which live suspended in the water of seas, lakes, ponds, and rivers, and they are not able to swim against the currents of water. This latter feature distinguishes plankton from nekton, community of actively swimming organisms like fish, larger cephalopods and aquatic mammals. Plankton form complex biotic communities which are functionally as diverse and show the same richness of interaction as terrestrial communities. Plankton is defined by their ecological niche rather than their phylogenetic or taxonomic classification. They provide a crucial source of food to larger, more familiar aquatic organisms such as fish. The zooplankton is divided into two groups. Temporary plankton consists of planktonic eggs and larvae of members of the benthos and nekton, permanent plankton includes all animals that live their complete life cycles in a floating state and the temporary plankton particularly abundant in coastal areas, it is characteristically seasonal in occurrence, though variations in spawning time of different species ensure its presence in all seasons. They are absent in fresh water. The ciliate protozoans are represented mainly by the tintinnids, which are between 20 and 640 microns in size and sometimes occur in vast numbers. Oysters, mussels, other marine bivalves and snails begin life as planktonic larvae. The wing snails (Pteropoda) spend their entire life cycles as plankton. Crustaceans are the most important members of the zooplankton. They are the marine counterparts of insects on land as in the sea, the arthropods are the most diverse and numerous of all animal phyla. The copepod Calaanuslinmarchicus is important as food for the herring, and the euphausiid Euphausia superba, commonly known