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Zoolankton distribution in neuston and water column along west coast of India from Goa to Gujarat

DRS at CSIR-National Institute of Oceanography

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Title Zoolankton distribution in neuston and water column along west coast of India from Goa to Gujarat
 
Creator Padmavati, G.
Goswami, S.C.
 
Subject zooplankton
abundance
species diversity
ecological associations
neuston
water colour
biomass
 
Description Zooplankton distribution and abundance in neuston layer and water column at 4 stansects between Goa to Gujarat during January-February, 1988 were studied. The ambient water temperature, salinity and dissolved oxygen at surface layer ranged between 26.3 degrees and 27.3 degrees C, 35.7 and 36.2 x 10 sup(-3) and 4.3 and 4.5 ml.l sup(-1) respectively. The temperature and dissolved oxygen values decreased with depth. Their values at 200 m depth were 18.2 degrees C and 0.27 ml.l sup(-1) . Zooplankton biomass (ml.m sup(-3)) and population density (no.m sup(-3)) were higher in the water column (av = 0.5,592) than in the upper neustonic layer (av = 0.3,245). Copepods were dominant (51.8 to 71.6%). The other important groups were ostracods, invertebrate larvae, chaetognaths, amphipods, pteropods, fish eggs and fish larvae. Sixty-one species of pelagic copepods were identified. Copepod species of genera Nannocalanus, Eucalanus, Clausocalanus and Canthocalanus) were abundant both in the upper and lower neuston layers and water column. Significant correlation (P greater than 0.05) was obtained among species of first 2 genera. The species richness and eveness were inversely related to the zooplankton biomass.
 
Date 2009-01-20T12:21:41Z
2009-01-20T12:21:41Z
1996
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.25; 85-90p.
http://drs.nio.org/drs/handle/2264/2169
 
Language en
 
Rights Copyright [1996]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher NISCAIR, CSIR