Fish production can be linked to biodiesel production through the use of fish-based oils, which are being explored as potential biofuels. Fish oils, particularly those from species like menhaden, are rich in omega-3 fatty acids and can be converted into biodiesel through a process called transesterification. The growing demand for sustainable energy has sparked interest in utilizing fish oil as a renewable source of biofuel, reducing reliance on petroleum-based products. This process not only contributes to energy production but also provides a way to utilize by-products from the fishing industry. However, concerns about the environmental impact of using fish for biofuel production have prompted calls for more sustainable and ethical approaches to sourcing fish oils for biodiesel production.