Volume No. 4 Issue No.: 1 Page No.: 165-170 July-Sept 2009

 

A STUDY ON THE AQUATIC BIOTA OF A TRAPA-CUM FISH CULTURE AT MUNJ SAGAR POND, DHAR, M.P. (INDIA)

 

Preeti Chaudhary* and Deepak Shinde

Department of Zoology, Govt. P.G. College, Dhar, M.P. (INDIA)

 

Received on : March 29, 2009

 

ABSTRACT

 

The fish cultivation chiefly depends on the availability of natural food items. The present paper deals with the seasonal changes in aquatic population in Munj Sagar pond, Dhar (M.P.). Man made effects through Trapa culture and worship waste materials acclerates plankton growth. Due to continuous culture of Trapa high eutrophication have been noticed, which should be cleared by desiltting. The integrated farming has surely led to the enrichment of heterotrophic and detritus food chain. The worms developing on the decaying Trapa crops serves as food for carnivorous bottom dwelling fishes. The decaying of Trapa crop also add nutrients in pond leading to huge algal blooms as well as it is used as habitat by fish fingerlings and adult fishes for hiding, there by enhance aquaculture productivity. The pick period of planktons was observed during monsoon period while slack period was observed during summer. The present article reflects the dominance of phytoplanktons indicating the fertility of the pond. Regarding the effects of Trapa on plankton and fishes, it was observed that except interfering in the netting of fishes, Trapa cultivation has very less effects on fish cultivation.

 

Keywords : Eutrophication, Hyterotropihic, Detritus, Aquatic weed problem.

 

 

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