Acute toxicity of Cadmium on Labeo rohita: Understanding Behavioral Patterns and Dose-Dependent Effects

Abstract

This comprehensive study delves into the intricate realm of acute toxic effects incited by cadmium on Labeo rohita, a highly pertinent freshwater fish species. Rigorous toxicity tests were conducted, employing a static method extending over varying durations: 24, 48, 72, and 96 hours, aiming to ascertain the lethal concentration (LC₅₀) values. Astonishingly, the LC₅₀ values obtained were found to be 0.309, 0.247, 0.207, and 0.160 ppm, presenting empirical evidence of the escalating menace cadmium poses over time to aquatic ecosystems. Evidencing the severity of the impact, the exposed fish displayed a myriad of dose-dependent behavioral anomalies, encompassing erratic swimming, loss of balance, surfacing, and convulsions. These pronounced modifications parallel previous research that has documented similar trends. Augmenting the credibility of these results, a meticulous analysis of the existing literature was performed, supplemented by the utilization of the aptly named Statistical Package for the Social Sciences (SPSS) software, enabling the determination of regression values and 95% confidence limits for the LC₅₀ values during each experimental interval. Such quantified insights synthesize a comprehensive understanding of the detrimental effects of cadmium, propelling the urgency to adequately monitor and address its environmental contamination, while preserving the delicate balance of aquatic ecosystems.