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Chlorophyll profile of the euphotic zone in the Lakshadweep Sea during the southwest monsoon season

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Relation http://eprints.cmfri.org.in/195/
 
Title Chlorophyll profile of the euphotic zone
in the Lakshadweep Sea during the southwest
monsoon season
 
Creator Balachandran, V K
Gopinathan, C P
Pillai, V K
Nandakumar, A
Valsala, K K
 
Subject Phytoplanktons
 
Description The distribution of chlorophyll a, b and c, the inorganic phosphate and nitrite
of the euphotic zone at 56 locations in the Lakshadweep Sea was studied
during the southwest monsoon period of 1990. The average chlorophyll a
concentration varied from 4.62 mg/m^ at the surface to 2.23 mg/m^at 50 m depth
with a column mean of 161 mg/m^ in the euphotic zone. The chlorophyll b
averaged to 2.28 mg/m^ at 10 m to 2.79 mg/m^ at 50 m depths and 115 mg/
m^ in the column. The chlorophyll c varied from 4.03 mg/m^ at the surface to
4.97 mg/m^ at the 20 m depth and showed an average value of 202 mg/m^for
the column. The chlorophyll c was the dominant pigment in the water column
throughout the period of study. The average ratios of chlorophyll c/a and b/
a fell in the range of 1.3 - 2.4 and 0.80 - 1.3 respectively and were positively
correlated with depths in the euphotic zone. The inorganic phosphate values
fluctuated from 0.65 fig at/1 at surface to 1.36 |ig at/1 at 50 m depth with a
mean of 49 mg at/m^ in the water column. The nitrite concentration varied
widely, very often below the level of detection.
 
Publisher CMFRI/ICAR
 
Date 1997
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/195/1/Article_05.pdf
Balachandran, V K and Gopinathan, C P and Pillai, V K and Nandakumar, A and Valsala, K K (1997) Chlorophyll profile of the euphotic zone in the Lakshadweep Sea during the southwest monsoon season. Indian Journal of Fisheries, 44 (1). pp. 29-43.