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Aggregation of Euphausia sibogae during summer monsoon along the southwest coast of India

DRS at CSIR-National Institute of Oceanography

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Title Aggregation of Euphausia sibogae during summer monsoon along the southwest coast of India
 
Creator Jayalakshmi, K.J.
Jasmine, P.
Muraleedharan, K.R.
Prabhakaran, M.P.
Habeebrehman, H.
Jacob, J.
Achuthankutty, C.T.
 
Subject spawning
spawning migration
temporal variations
monsoons
 
Description The influence of environmental parameters on the spawning aggregation of Euphausia sibogae was investigated along the southwest coast of India during the peak phase of summer monsoon 2005. The prevailing ecological conditions between the aggregation period (peak phase) and non-aggregation period (early phase) were also compared. The aggregation was observed at station 1 (8 degrees N; 76.5 degrees E, 480 ind.m sup(?3)) and 6 (10 degrees N; 75.5 degrees E, 839 ind.m sup(?3)) during the peak phase of the summer monsoon. Eggs (14769 eggs m sup(?3)) and different developmental stages were observed in higher abundance at station 6. The physicochemical conditions indicated that the aggregation coincided with the upwelling. The nutrient enrichment due to the upwelling triggered phytoplankton blooms, and this appeared to provide a conducive environment for spawning and development of E. sibogae.
 
Date 2012-01-03T06:41:05Z
2012-01-03T06:41:05Z
2011
 
Type Journal Article
 
Identifier Journal of Marine Biology, vol.2011(Article ID 945734); 2011; doi:10.1155/2011/945734
http://drs.nio.org/drs/handle/2264/3992
 
Language en
 
Rights Copyright ? 2011 K. J. Jayalakshmi et al. This is an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly
cited.
 
Publisher Hindawi Publishing