Quantitative abundance of amphipods around Andaman-Nicobar Islands
1996
The present study deals with the quantitative distribution and abundance of
amphipods of the Andaman Sea in time and space, based on the zooplankton samples
collected during the cruises 46- 73 of FORV Sagar Sampada during 1988-1990.
Mean number of amphipods (no/1000 m ) reached the maximum of 1763 in January
and the minimum of 315 in July. The seasonal density was maximum during the
northeast monsoon and minimum for the southwest monsoon and their mean numbers
were estimated as 812 and 463/1000 m respectively. In general, they were abundant
in the region where the station depths ranged between 50 and 100 m with the mean
estimated as 800/1000 m of water. Analysis of day and night samples did not show
any remarkable variation. The distribution and abundance of amphipods in relation
to time and space are discussed in the paper.
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