Volume : IV, Issue : XII, December - 2014

Effect of Physico–Chemical Parameters on the Reproduction of Marine Crab, Portunus Sanguinolentus

Sarode Babita P. , Patil Meena U.

Abstract :

The man made activities such as addition of sewage, suspended solids, heavy metal affect adversely the ecosystem. These man made activities as well as changes in environmental parameters, apart from sources of thermal discharge and radioactive substances, affect the balance of ecosystem. Seasonal variations in the sea water parameter viz. pH, salinity, TDS, BOD and COD etc. affect biotic community. Water compositions have great influence on the supply of nutrients to the aquatic animal which ultimately affect the growth and reproduction phenomenon. Effluents released by thermal power station and industrial area affected the productivity of economically important crustaceans. Therefore, efforts were made to understand the study of effect of physico– chemical parameters of sea water on the reproduction of marine crab Portunus sanguinolentus by using standards method APHA(1985),Trivedi and Goel (1986). The pH values were fluctuating throughout the period of study. Salinity, TDS, BOD, and COD also showed variation throughout the year. The highest percentage of mature individuals of crab, Portunus sanguinolentus were found in July 2003. The lowest percentage of mature individuals were found in January 2003.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Sarode Babita P.,Patil Meena U. Effect of Physico-Chemical Parameters on the Reproduction of Marine Crab, Portunus Sanguinolentus Indian Journal of Applied Research, Vol.4, Issue : 12 December 2014

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