NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(4) [August 2011] >

Title: Myctophid and pelagic shrimp assemblages in the oxygen minimum zone of the Andaman Sea during the winter monsoon
Authors: Karuppasamy, P.K.
Raj, C.M.Lalu
Muraleedharan, K.R.
Nair, Maheswari
Keywords: Micronekton
Vertical migration
Oxygen minimum zone
Winter monsoon
Andaman Sea
Issue Date: Aug-2011
Publisher: NISCAIR-CSIR, India
Abstract: Stratified samples were collected with a Multiple Plankton Net for assessing the myctophid and pelagic shrimps composition from the Andaman Sea during the winter monsoon. Andaman Sea has a fair representation of mesopelagic micronektonic fauna such as the myctophids and pelagic shrimps in the upper 1000 m depth. Among the myctophids, Benthosema fibulatum had the maximum biomass followed by Diaphus lucidus and Benthosema pterotum. Among the pelagic shrimps Sergestus seminudus and Oplophorus types were the dominant species. Sergestes seminudus was present at all depths [up to 1000 m] and its distribution pattern suggested the cocurence of a strong diurnal vertical migration. Temperature decreased from the mixed layer depth downwards. Salinity did not show any significant variation. Dissolved oxygen ranged between 2.8 and 4.8 mL.L-1 in the upper 75 m and from 0.05 to 0.2 mL.L-1 in the 150-650 m column, with a gradual increase in the bottom layers [>0.8 mL.L-1]. Majority of myctophids and shripms occurred in abundance in the oxygen minimum zone [150-650 m].
Page(s): 535-541
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Source:IJMS Vol.40(4) [August 2011]

Files in This Item:

File Description SizeFormat
IJMS 40(4) 535-541.pdf695.15 kBAdobe PDFView/Open
 Current Page Visits: 99 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 164223 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: