Coldwater Aquaculture Scenario of the World

Coldwater aquaculture refers to the farming of fish and other aquatic organisms in cold-water environments, which typically have lower temperatures and higher oxygen levels than warm water environments. This chapter provides an overview of the global cold-water aquaculture scenario. The most commonly farmed cold-water species are salmon, trout, arctic char, and whitefish. These species are highly valued for their taste and nutritional qualities and are often sold as premium products. The global production of cold-water aquaculture is growing rapidly, with salmon being the most commonly farmed species. In the year 2020, there was an increase in salmon production, reaching a remarkable 3.8 million metric tons. Norway, Chile, and Scotland stood out as the leading contributors to this industry, accounting for the majority of output. Furthermore, rainbow trout (Oncorhynchus mykiss) solidified its position among the 12 widely cultivated fish, on a global scale. This upward trend was also observed in Asia, where rainbow trout production has been steadily growing. Advances in technology, which includes recirculating aquaculture systems (RAS) and closed containment systems, are making it possible to farm cold-water species in areas where traditional aquaculture was not possible. These systems help improve the control of water quality and temperature which helps reduce the risks related to diseases and pollution. Coldwater aquaculture can have negative environmental impacts, including the release of excess nutrients, antibiotics, and other pollutants, which can harm wild fish populations and their habitats. Sustainable management practices, including certification schemes and eco-labelling, are being developed to address these concerns. Overall, the cold-water aquaculture scenario around the world is evolving rapidly, with new technologies and sustainable management practices being developed to support the growth of the industry growth while minimizing its environmental impacts. Overall, the cold-water aquaculture industry in Asia is an important part of the aquaculture sector, with a focus on producing high-value species like trout for export markets. The industry is evolving, with new technologies and sustainable management practices being developed to address its environmental impacts and support its growth.