The Role of Chloride and Calcium in Freshwater Ecosystem Balance
Introduction:
An introduction to the topic “The Role of Chloride and Calcium in Freshwater Ecosystem Balance” Among the many ions that shape freshwater chemistry, chloride and calcium play essential roles in the stability and biological productivity of aquatic ecosystems.
Chloride helps organisms regulate osmotic balance, while calcium is critical for skeletal development, plankton health, and buffering pH. Seasonal factors and anthropogenic inputs significantly influence their concentrations in lakes and ponds.
This blog draws from scientific observations across Indian freshwater systems to explore how variations in chloride and calcium affect water quality and aquatic biodiversity.
These insights are especially relevant for limnologists, fishery managers, and conservationists monitoring systems like Bichnaiyya Lake.
📚 This article includes an excerpt from an original thesis, shared here for academic awareness and public benefit. Content has been editorially formatted for readability.
Table of Contents
Excerpt Section:
Chloride is an inorganic element. It is found in water in the form of chloride ion as a major inorganic ion (APHA, 2012).
Fishes can maintain their osmotic balance by chloride. It’s a ubiquitous aqueous anion in all-natural water, the concentration varies widely and reaches a maximum in seawater.
Chloride levels in rivers and other freshwater range from 15–35 mg/l (Pal and Chakraborty, 2017).
Calcium is an important physicochemical parameter that regulates the biotic life of water bodies. According to WHO, (1996) 75 mg/l of Calcium in a water body is considered as standard acceptable limit, and the permissible limit is 200mg/l.
Saxena and Saksena (2012), observed a maximum of 44.67 mg/l and a minimum 26.85 mg/l of calcium in Raipur reservoir, Madhya Pradesh.
Bhateria and Jain (2016) observed that if calcium ion drops below 5 mg/l in freshwater then it supports the life of only sparse plants and animals’ life, the condition is called Oligotrophic.
Source Citation:
Researcher’s full name: Chaudhary Narendra Kumar
Title: Seasonal variations in hydrological parameters and status of fish diversity in Bichnaiyya Lake wetland of District Basti, UP, India
Guide(s): Srivastav Susmita
University: Siddharth University
Completed Date: 2024
Excerpt Page Number: Page 14
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