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Primary productivity and plankton abundance along the shelf and oceanic waters off southeast coast of India during August, 1987

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Relation http://eprints.cmfri.org.in/5140/
 
Title Primary productivity and plankton abundance along the shelf and oceanic waters off southeast coast of India during August, 1987
 
Creator Selvaraj, G S D
Paul Pandian, A L
Purushothaman, A
 
Subject Zooplanktons
Primary Production
Phytoplanktons
 
Description The study is based on the hydro biological data collected on board FORV Sagar Sampada from the shelf and oceanic
waters of Bay of Bengal between Lat. 10˚ - 14˚ N and Long. 80˚ - 83˚ E in August, 1987. Mean values of chlorophyll
'a', 'b', 'c' and plant carotenoid pigments in surface water were estimated as 2.180, 0.184, 1.616 and 1.651 mg/m3 in the
shelf and 0.333, 0.088,0.406 and 0.297 mg/m3 for the oceanic region respectively while primary productivity experiments
(by oxygen method) showed mean values of 146 and 92 mg C/m3/day respectively in the upper euphotic zone.
Phytoplankton blooms and zooplankton swarms observed in the shallow shelf region between 10°30' and 11°31YN and
along the continental shelf edge and adjacent oceanic waters between 12'30' and 13"3(YN are reported. Wet volume of
plankton biomass (soon after preservation ) was found to vary from 0.88-10.6 cc/m3 of water in the shelf and 0.18-1.7
cc/m3in the oceanic region with their mean volume estimated as 3.14 and 0.48 cc/m3 in the respective regions. The
concentration of total suspended matter (dry weight) in the surface layer varied from 1.90 -7.91 mg/l. Contribution of
plankton biomass to total suspended matter, their distribution pattern and factors relating to their abundance are
discussed.
 
Date 1990
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5140/1/10_Primary_productivity_and_plankton_abundance_along_the_shelf_and_oceanic_waters_off_southeast_c.pdf
Selvaraj, G S D and Paul Pandian, A L and Purushothaman, A (1990) Primary productivity and plankton abundance along the shelf and oceanic waters off southeast coast of India during August, 1987. In: Proceedings of the first workshop on scientific results of FORV Sagar Sampada, 5-7 June 1989, Kochi.