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Phytoplankton community structure in relation to environmental factors from the New Mangalore Port waters along the southwest coast of India.
- Source :
- Environmental Monitoring & Assessment; Aug2018, Vol. 190 Issue 8, p1-1, 1p
- Publication Year :
- 2018
-
Abstract
- Seasonal and spatial phytoplankton distribution in relation to environmental factors was investigated in New Mangalore Port, a major port along the west coast of India. A well-mixed water column characterized the non-monsoon seasons, whereas it was weakly stratified during monsoon. Water quality index (TRIX) scores indicated good water quality except during pre-monsoon (inner zone surface) and monsoon (near bottom waters). Surface abundance of tychopelagic diatoms (Paralia sulcata, Melosira nummuloides, Cylindrotheca closterium, and Nitzschia sigma) was higher during non-monsoon seasons. Certain centric diatoms, e.g., Leptocylindrus danicus, P. sulcata, and Rhizosolenia imbricata, dominated during pre-monsoon (inner zone) and positively correlated with TRIX. High Skeletonema costatum and dinoflagellate abundance during the monsoon season coincided with high nutrient concentrations. Five potential toxic and fourteen harmful/bloom forming algal species were encountered at abundances below the level that can be considered as harmful to the ecosystem. In addition to a baseline database, this study highlights the potential use of certain diatom species as indicators of hydrography and water quality for monitoring dynamic coastal marine ecosystems. [ABSTRACT FROM AUTHOR]
- Subjects :
- WATER quality
PHYTOPLANKTON
BIOTIC communities
ENVIRONMENTAL impact analysis
COASTS
Subjects
Details
- Language :
- English
- ISSN :
- 01676369
- Volume :
- 190
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Environmental Monitoring & Assessment
- Publication Type :
- Academic Journal
- Accession number :
- 131336580
- Full Text :
- https://doi.org/10.1007/s10661-018-6840-y