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Quantitative and seasonal abundance of Siphonophores along the southwest coast of India and the Laccadive Sea

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Relation http://eprints.cmfri.org.in/1285/
 
Title Quantitative and seasonal abundance of Siphonophores along the southwest coast of India and the Laccadive Sea
 
Creator Rengarajan, K
 
Subject Phytoplanktons
 
Description The quantitative specieswise numerical abundance and seasonal distribution of Diphyid and Abylid siphonophores
were studied in detail for the first time, based on 128 zooplankton samples out of 243 samples collected
and analysed at bimonthly intervals. The samples were collected between Mangalore and Cochin from
neritic waters and from Laccadive Sea on the oceanic region during August 1966 and December 1967. This
study has been carried out very systematically for numerical specieswise estimation of polygastric and eudoxid
stages of 24 different Diphyid and Abylid species of siphonophores, as there was no such investigation on this
group. The results revealed that Diphyes chamissonis is the dominant species in the area studied constituting
35.5 % of the total. Most of the species are equally distributed in the neritic and oceanic provinces and that
too during the southwest monsoon and northeast monsoon months coinciding with high plankton production,
mainly influenced by surface current and upwelling of the area studied. Their inter-relationship is also critically
discussed in this account.
 
Publisher MBAI
 
Date 1983
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/1285/1/Reng_17-40.pdf
Rengarajan, K (1983) Quantitative and seasonal abundance of Siphonophores along the southwest coast of India and the Laccadive Sea. Journal of the Marine Biological Association of India, 25 (1&2). pp. 17-40.