Affiliation:
1. Centre for Advanced Study in Marine Biology Annamalai University Parangipettai Tamil Nadu India
2. Marine Ecosystem Division, BPSG/EPSA Space Applications Centre (Indian Space Research Organization) Ahmedabad India
3. Centre for Ocean Research Sathyabama Institute of Science and Technology Chennai India
4. Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology Parangipettai Tamil Nadu India
Abstract
AbstractA study conducted from January to December 2018 examined seasonal variations in horizontal phytoplankton communities. A total of 93 species were identified, including 63 Coscinodiscophyceae, 4 Fragilariophyceae, 7 Bacillariophyceae, 15 Dinophyceae, and 4 Cyanophyceae. The highest species diversity and abundance occurred during the postmonsoon and premonsoon periods. Environmental parameters (viz., temperature, salinity, dissolved oxygen, pH, ammonia, nitrite, silicate, total suspended solids) were all statistically significant except for nitrite (p > .05). Multivariate statistical analyses (PCA and CCA) revealed that in the postmonsoon period, silicate and nitrate were responsible for the proliferation of phytoplankton abundance, species composition and density, while in the premonsoon period, temperature, salinity, and pH significantly influenced and favored specific phytoplankton groups (such as Chaetocerotaceae) in terms of species composition and abundance.
Funder
Space Applications Centre
Reference66 articles.
1. Aston S. R.(1980).Nutrients dissolved gases and general biogeochemistry in estuaries.
2. High predictability of spring phytoplankton biomass in mesocosms at the species, functional group and community level;Bauer B.;Freshwater Biology,2013
3. Can plankton communities be considered as bio‐indicators of water quality in the Lagoon of Venice?;Bianchi F.;Marine Pollution Bulletin,2003
4. Hydrobiological studies in the gradient zone of the Vellar estuary: 1. Physico‐chemical parameters;Chandran R.;Mahasagar,1984