Record Details

Spatio-temporal variations of phytoplankton assemblage in coastal waters of Maharashtra, north-eastern Arabian Sea

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/15904/
https://epubs.icar.org.in/ejournal/index.php/IJF/article/view/115317
 
Title Spatio-temporal variations of phytoplankton assemblage in coastal waters of Maharashtra, north-eastern Arabian Sea
 
Creator Mhatre, V D
Khandagale, P A
Thomas, Sujitha
 
Subject Phytoplankton
 
Description Seasonal variations in phytoplankton species and abundance along the coast of Maharashtra from two different locations
(Mumbai and Ratnagiri) and depths were investigated during August 2014-May 2017. A total of 84 species of phytoplankton
were recorded from the region out of which 67 were diatoms, 16 dinoflagellates and one blue green alga. Seventy-five and
60 species of phytoplankton were recorded from Ratnagiri and Mumbai respectively. Diatoms dominated the phytoplankton
community (81.7-93.3%) followed by dinoflagellates (4.7-7.2%) and blue green algae in both locations. Maximum
phytoplankton density was recorded during post-monsoon season followed by pre-monsoon and monsoon seasons at
Mumbai and Ratnagiri. Highest average phytoplankton cell density recorded was 9.09 x 104 cells l-1 and 4.06 x 104
cells l-1 during post-monsoon season at Ratnagiri and Mumbai respectively. Maximum cell density was observed at 20 m depth from Mumbai and Ratnagiri. Thalassiosira subtilis, Trieres mobiliensis, Skeletonema costatum, Coscinodiscus centralis and Ditylum brightwelli were the most abundant phytoplankton species recorded at Mumbai, whereas Chaetoceros curvisetus, S. costatum, Trichodesmium erythraeum, Chaetoceros lorenzianus and Ditylum brightwelli were abundant in Ratnagiri waters. The blue green alga, T. erythraeum was abundantly recorded during pre-monsoon season. Species diversity index (H’) ranged from 4.72 to 5.52 and was higher during post-monsoon season compared to pre-monsoon and monsoon. Highest phytoplankton diversity was observed at 20 m depth compared to 40 m depth.
 
Publisher ICAR-Central Marine Fisheries Research Institute
 
Date 2022
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15904/1/Indian%20Journal%20of%20Fisheries_2022_Khandagale%20P%20A.pdf
Mhatre, V D and Khandagale, P A and Thomas, Sujitha (2022) Spatio-temporal variations of phytoplankton assemblage in coastal waters of Maharashtra, north-eastern Arabian Sea. Indian Journal of Fisheries, 69 (1). pp. 61-74.