Endocrinology in aquatic species involves the study of hormones that regulate critical physiological processes, including growth, reproduction, and metabolism. In fish and other aquatic animals, hormones control osmoregulation, stress responses, and immune functions. A deep understanding of these hormonal pathways allows aquaculturists to manipulate environmental factors, optimizing breeding cycles and growth rates. Hormonal interventions, like controlling maturation or enhancing immune function, can improve farm productivity. Additionally, knowledge of aquatic endocrinology helps in developing sustainable aquaculture practices, reducing the need for antibiotics and chemicals, and supporting the long-term health and growth of farmed species.