Fish reproduction techniques in aquaculture have advanced significantly, enabling the industry to meet increasing demand for farmed fish. Common techniques include artificial insemination, hormone-induced spawning, and selective breeding. Artificial insemination is used to control the genetic quality of offspring, allowing for the development of fish with specific desirable traits. Hormonal treatments are used to trigger spawning in fish, ensuring a controlled breeding cycle regardless of the season. Selective breeding has led to the development of fish that grow faster, are more disease-resistant, and exhibit better feed conversion rates. These advancements allow aquaculture to produce more fish efficiently, while minimizing environmental impacts and reducing reliance on wild fish stocks for breeding.