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International Journal of Zoology and Applied Biosciences Research Article
Influence of seasons on copepods of Agniyar estuary, Palk Strait, Tamil Nadu, India
J. Sugumaran
Year : 2016 | Volume: 1 | Issue: 1 | Pages: 40-45
Received on: 02/02/2016
Revised on: 02/27/2016
Accepted on: 02/28/2016
Published on: 03/20/2016
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J. Sugumaran( 2016).
Influence of seasons on copepods of Agniyar estuary, Palk Strait, Tamil Nadu, India
. International Journal of Zoology and Applied Biosciences, 1( 1), 40-45.
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Abstract
Seasonal variations of copepod diversity, density and physicochemical properties of Agniyar estuary was studied during 2014 and 2015. Physicochemical characteristics such as temperature, salinity, calcium and nitrite were high during premonsoon, while dissolved oxygen (DO) and nitrate were high during monsoon season. Copepods showed seasonal variations in diversity and density. Nineteen species of copepods belonging to 3 orders and 15 genera were reported. Density (1868 numbers/m3) was high during Postmonsoon, low diversity (948 numbers/m3) was recorded during monsoon. The marine and brackish water forms dominated during dry seasons while, the freshwater forms dominate rainy season. The study may serve as a basic platform for future studies and monitoring programmes of Agniyar estuary.
Keywords
Agniyar Estuary, Zooplankton, Copepods, Seasonal changes.
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© The Author(s) 2025. This article is published by International Journal of Zoology and Applied Biosciences under the terms of the Creative Commons Attribution 4.0 International License (creativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
