Abstract
This study is aimed at investigating the chemical composition of water in fishery reservoirs, particularly focusing on the concentration of major ions and their interrelationships. Water quality in fishery ponds is a crucial factor determining the survival, growth, and reproduction of fish. The chemical composition of water, especially the presence of major ions such as chloride (Cl—), sodium (Na⁺), potassium (K⁺), magnesium (Mg²⁺), and calcium (Ca²⁺), plays a key role in maintaining the stability of the aquatic environment. These ions are integral components of dissolved mineral salts and contribute to the overall mineralization level of water.
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