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Distribution of prawn seed according to water depth in shallow areas of Cochin backwaters

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Relation http://eprints.cmfri.org.in/314/
 
Title Distribution of prawn seed according to water depth in
shallow areas of Cochin backwaters
 
Creator Easo, Sosamma
Mathew, K J
 
Subject Prawn and Prawn fisheries
 
Description In order to study the distribution and abundance of seed of Penaeus indicus, Melapenaeus dobsoni and
M. monoceros according to depth gradient in the shallow water areas of Cochin backwaters, two sampling
stations were selected and sampling for seed and sediment was carried out using a QSS (quantitative seed
sampler) from different depth zones during premonsoon, monsoon and postmonsoon period of 1988.
As a whole the average prawn seed density was 14/m2for P. indicus, 16/m2for M.dobsoni and 6/m2for
M. monoceros. Seed of P. indicus found to be more concentrated at 10 and 30 cm depth zones where
substratum was sandy. But in the case of M. dobsoni and M. monoceros the seed were abundant at deeper
zones of 60 and 90 cm where soil was silty or clayey in texture. Percentage of organic matter in the soil
did not show any important role in determining the depth variation in the abundance of seed of penaeids.
The size-wise distribution of the seed is also discussed.
 
Publisher CMFRI/ICAR
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/314/1/Article_07.pdf
Easo, Sosamma and Mathew, K J (1989) Distribution of prawn seed according to water depth in shallow areas of Cochin backwaters. Indian Journal of Fisheries, 36 (3). pp. 211-219.