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Primary description of surface water phytoplankton pigment patterns in the Bay of Bengal

DRS at CSIR-National Institute of Oceanography

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Title Primary description of surface water phytoplankton pigment patterns in the Bay of Bengal
 
Creator Naik, R.K.
Anil, A.C.
Narale, D.D.
Chitari, R.R.
Kulkarni, V.V.
 
Subject Phytoplankton
pigment index
monsoon
Bay of Bengal
 
Description Spatial and temporal variations in surface water phytoplankton pigment distribution in the Bay of Bengal were studied during the spring intermonsoon (SpIM, February?April) and the commencement of the summer monsoon (CSM, May?June), using pigment and diagnostic indices. The Prokaryotic pigment index (Prok sub (DP)) was dominant at all the oceanic stations whereas the Flagellate pigment index (Flag sub (DP)) was dominant at the near coastal stations. However, during the commencement of summer monsoon, an oscillation in the dominance of Prok sub (DP) and Flag sub (DP) was observed in the central oceanic bay, whereas flagellates and diatoms were dominant at the near coastal stations. This change in pigment pattern is possibly related to the influence of rainfall. Comparison of pigment data with microscopic cell counts indicated a significant relationship between the diatom pigment index (Diat sub (DP)) and diatom abundance. However, the relationship between the dinoflagellate pigment index (Dino sub (DP)) and dinoflagellate abundance was not significant. Studies coupling pigment composition analysis with microscopic analysis of phytoplankton in natural conditions should thus be a prerequisite in establishing valid biogeochemical and ecosystem models.
 
Date 2011-06-15T12:07:12Z
2011-06-15T12:07:12Z
2011
 
Type Journal Article
 
Identifier Journal of Sea Research, vol.65(4); 2011; 435-441
no
http://drs.nio.org/drs/handle/2264/3855
 
Language en
 
Relation J_Sea_Res_65_435.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2011] Elsevier
 
Publisher Elsevier