Record Details

Characterization of phytoplankton pigments and functional community structure in the Gulf of Mannar and the Palk Bay using HPLC?CHEMTAX analysis.

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Characterization of phytoplankton pigments and functional community structure in the Gulf of Mannar and the Palk Bay using HPLC?CHEMTAX analysis.
 
Creator Madhu, N.V.
Ullas, N.
Ashwini, R.
Meenu, P.
Rehitha, T.V.
Lallu, K.R.
 
Subject phytoplankton
HPLC
biomarkers
 
Description Phytoplankton marker pigments and their functional groups were identified for the first time in the Gulf of Mannar (GoM) and the Palk Bay (PB), located in the southeast coast of India using HPLC?CHEMTAX analytical techniques. The GoM generally remained more saline, productive (in terms of chlorophyll a) and less turbid than the PB during southwest and northeast monsoon periods. The diversity and concentration of marker pigments were high in the GoM, whereas the PB was characterized by high concentration of zeaxanthin, indicating the dominance of photosynthetic prokaryotes (cyanobacteria). The CHEMTAX analysis revealed that the phytoplankton biomass (chlorophyll a) in the PB was mainly derived from cyanobacterial community. However, abundance of fucoxanthin and peridinin in the GoM indicated microphytoplankton (20?200 ?m) as the dominant group. The CHEMTAX results showed that more than 50% of chlorophyll a in the GoM was contributed by microphytoplankton, in particular diatoms and dinoflagellates. The substantial increase in the photoprotective carotenoids (PPCs) and photoprotection index (PI) in the PB was indicative of its low productivity, probably caused by the warm and turbid waters.
 
Date 2014-05-06T11:34:30Z
2014-05-06T11:34:30Z
2014
 
Type Journal Article
 
Identifier Continental Shelf Research, vol.80; 2014; 79?90.
no
http://drs.nio.org/drs/handle/2264/4528
 
Language en
 
Relation Bioorg_Med_Chem_Lett_24_2863.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2014] Elsevier
 
Publisher Elsevier