Fish Hybridization: A Pathway to Sustainable Seafood Production and EnvironmentalAdaptability

Global seafood demand continues to rise, driven by increasing population, urbanization, and growing health awareness, with global seafood consumption at around 20.5 kg per capita.Overfishing, pollution, and climate change threaten wild fish stocks, driving aquaculture to the forefront of ensuring seafood security.Aquaculture now accounts for over 50% of global fish production and plays a critical role in alleviating pressure on wild fisheries resources.Technological advancements, including improved breeding, enhanced feed efficiency, and improved disease management, have contributed significantly to the growth of aquaculture.However, challenges such as disease outbreaks, environmental sustainability, and economic viability persist.Fish hybridization offers a promising solution, enhancing traits like disease resistance, growth rates, and adaptability to fluctuating environments.Recent studies have shown that hybrid fish outperform wild types in these areas, reinforcing the sustainability of aquaculture systems.Nonetheless, stringent management and monitoring are required to mitigate potential risks, such as unintended release of genetically distinct hybrids and ecosystem disruption.As aquaculture continues to evolve, hybridization is expected to play a crucial role in addressing global food security and meeting the increasing demand for sustainable seafood.This paper reviews success stories in fish hybridization, examines prevailing constraints and challenges, and outlines priority research avenues and policy directions for the field.