4.2 Article

A baseline study of temporal and spatial variations of physico-chemical variables in Vellar estuary Parangipettai southeast of India

Publisher

WALTER DE GRUYTER GMBH
DOI: 10.1515/zpch-2023-0374

Keywords

Vellar estuary; nitrate; hydrological parameters; salinity; primary production

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The current study aims to collect baseline research data for the area near the Vellar estuary mangroves. Factors such as temperature, nitrate, pH, salinity, ammonia, inorganic phosphate, dissolved oxygen, and silicate play a key role in chemical and biological water reactions as well as the growth of flora and fauna in the estuary. The study reveals unique seasonal variations and an increasing trend in nutrient levels during the summer to monsoon seasons.
The Vellar estuary are predominated by mudflats and having dense mangrove vegetation, these mangrove act as major nursery ground feeding for a various marine animal like fin and shellfishes. The current study is an effort to gather baseline study data for the area near the Vellar estuary mangroves. Since, Temperature, Nitrate, pH, Salinity, Ammonia, Inorganic phosphate, Dissolved Oxygen and Silicate is a key factor affecting chemical and biological water reactions, as well as controlling photosynthesis in coastal regions and influencing temperatures in swamp, flora and fauna in the estuary. Therefore, unique seasonal variation was observed in the present study. The increasing trend in nutrients levels are observed in summer to monsoon and low in summer seasons. These oscillations of hydrological parameters support primary production in this Vellar estuary.

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