Bivalve resources of Moorad Estuary, north Kerala

Laxmilatha, P and Thomas, Sujitha and Surendranath, V G and Sivadasan, M P and Ramachandran, N P (2011) Bivalve resources of Moorad Estuary, north Kerala. Marine Fisheries Information Service (207). pp. 24-25.

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Abstract

A bivalve resource survey of Moorad estuary in Badagara District of north Kerala was carried out during February 2004 to assess the bivalve species, their distribution and potential stock. Sampling sites were fixed within five main zones of the Moorad estuary based on the clam fishery activities and local enquiries. The bivalve distribution in a unit area was taken by demarking the area of clam bed with a quadrant. Observations on the area of clam bed, water clarity, depth and temperature were recorded at each site. Surface and bottom water samples were collected and hydrographic parameters like salinity, temperature, pH and dissolved oxygen content, productivity, nitrate, phosphate and silicate were recorded. Sediment samples were collected to analyse the grain size and organic content of the clam beds. All samples were analysed within 24 h except sediment samples. Average density of bivalve per square metre area was analysed and the potential stock was estimated for each bivalve species in the estuary.

Item Type:Article
Uncontrolled Keywords:Bivalve resources; Moorad Estuary; north Kerala
Subjects:Molluscan Fisheries > Bivalves
Divisions:CMFRI-Kozhikode
ID Code:8862
Deposited By:Arun Surendran
Deposited On:07 Mar 2012 09:48
Last Modified:26 May 2012 10:40

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