Succession of Organisms Following Trichodesmium Phenomenon

Enrichment caused of Trichodesmium phenomenon is manifested in the environment by the appearance of a series of organisms in succession. In April and May, when Trichodesmium bloom is on the decline in Goa waters (Arabian Sea) and the sea conditions are still fairly uniform, a mixed diatom bloom comp...

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Published in:Indian journal of marine sciences 1979-01, Vol.8 (2), p.89-93
Main Authors: Devassy, V P, Bhattathiri, PMA, Qasim, S Z
Format: Article
Language:English
Subjects:
Chaetoceros
Evadne
Marine
Noctiluca
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creator Devassy, V P
Bhattathiri, PMA
Qasim, S Z
description Enrichment caused of Trichodesmium phenomenon is manifested in the environment by the appearance of a series of organisms in succession. In April and May, when Trichodesmium bloom is on the decline in Goa waters (Arabian Sea) and the sea conditions are still fairly uniform, a mixed diatom bloom comprising largely of Chaetoceros appears. This is followed by swarms of cladocerans mostly consisting of Evadne . Soon afterwards the cladocerans are successed by dinoflagellates and green algae. At this stage, Noctiluca becomes the most predominant organism. The dinoflagellates are soon followed by swarms of copepods and finally the carnivores (siphonophores and Sagitta ) make their appearance in large numbers. Thus, within 2 months, concommittent with the decline of Trichodesmium bloom, rapid changes occur in the population density of planktonic life of the sea when one set of organisms gets replaced by another and each time the community gets reorganized.
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identifier ISSN: 0379-5136
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source Free E-Journal (出版社公開部分のみ）
subjects Chaetoceros
Evadne
Marine
Noctiluca
title Succession of Organisms Following Trichodesmium Phenomenon
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