Assay of Growth and Nutritional Quality of Two edible fishes collected from Kullursandai Dam, Virudhunagar with relation to Physio- chemical factors

Artificial barriers, built across streams that flow year-round or seasonally, have numerous functions. Approximately 70% of the Earth's surface is comprised of water, which is essential for human existence. Human population growth, industrialization, the use of fertilizer in farming, and human-induced activities have significantly contaminated water sources (Ramachandra Mohan, 2018). Regular water quality testing is essential, with physical and chemical analysis being a top priority for evaluating water quality for drinking, irrigation, fish stocks, and industrial uses (Salve et al., 2006). This analysis aids in comprehending the intricate relationships and interactions between climatic and biological factors in water bodies. Length-weight relationships, denoted by the abbreviation LWRs, serve as essential tools for calculating the weight and biomass of fish, especially when direct field measurements are unfeasible. The connection between fish length and weight serves as a useful indicator for comprehending fish survival rates, growth patterns, maturity stages, reproductive capabilities, and overall health, as described by Le Cren (1951). Furthermore, LWRs enable the distinction of small taxonomic groups, given that variations occur within populations from diverse localities.