Integration of genomic resources into an Arctic charr broodstock program

加拿大拥有丰富的原始淡水和海洋资源，有能力成为水产养殖物种的主要国际生产国。传统的海洋开放式网围栏水产养殖的社会和环境问题，使得可以在内陆设施养殖的淡水鱼类的生产更加理想。北极红点鲑是一种冷水鲑鱼，是一种特别有吸引力的水产养殖物种，因为它可以在资源友好的内陆淡水养殖场繁殖和生长。北极红点鲑最近被列入蒙特雷湾水族馆可持续海鲜的最佳选择名单。Icy沃茨有限公司，位于育空地区的内陆淡水水产养殖设施，专门生产北极红点鲑卵，销售给世界各地的养殖场。北极红点鲑在-1 ° C至15°C的温度下茁壮成长，许多对北极红点鲑生产感兴趣的淡水养殖场都建立在夏季温度高于这一范围的地方。这是Icy沃茨及其客户在面对气候变化时所关心的问题。事实上，在过去十年中，育空地区创纪录的水温导致了冰冷沃茨设施鱼类的重大损失。该项目的主要目标是生产耐高温的北极红点鲑亲鱼。将确定与耐热性增加相关的分子遗传标记，并将其纳入现有的传统育种计划。这将使北极炭的生产线更加耐热，从而能够在超过北极炭正常范围的温度峰值中生存。耐高温的北极红点鲑也将经历更好的健康状况，并将在日益不可预测的夏季气候中承受更少的压力，无论是在育空地区还是在世界各地的淡水池养殖场。这将扩大北极红点鲑养殖，并使一家环境上可持续的加拿大育空公司Icy沃茨得以发展，从而增加加拿大北部的培训和就业机会，并促进“绿色”加拿大公司的发展。

Canada, with its abundance of pristine freshwater and marine resources, has the capacity to become a major international producer of aquaculture species. Social and environmental concerns with traditional marine, open net pen aquaculture, make the production of freshwater fish species that can be cultured at inland facilities more desirable. Arctic charr, a cold water salmonid, is an especially attractive aquaculture species as it can be bred and grown at resource friendly, inland freshwater tank farms throughout its lifecycle. Arctic charr has recently been added to the Monterey Bay Aquarium's Best Choice list for sustainable seafood. Icy Waters Ltd., an inland freshwater aquaculture facility based in the Yukon, specializes in the production of Arctic charr eggs for sale to grow-out operations around the world. Arctic charr thrive at temperatures between -1°C and 15°C, and many freshwater tank farms that are interested in Arctic charr production are set up in locations that experience temperatures above this range in summer months. This is a concern for Icy Waters and their customers in the face of climate change. Indeed, record water temperatures in the Yukon over the past decade have resulted in significant losses of fish at the Icy Waters facility. The primary goal of this project is to produce a higher temperature tolerant Arctic charr broodstock. Molecular genetic markers associated with increased thermal tolerance will be identified, and will be integrated into the existing traditional breeding program. This will enable the production of a line of Arctic charr which is more thermo-tolerant and thus able to survive spikes in temperature beyond the normal range for Arctic charr. Thermo-tolerant Arctic charr will also experience overall better health and will undergo less stress in increasingly unpredictable summer climates, both in the Yukon and at freshwater tank farms throughout the world. This will expand Arctic charr culture and enable the growth of Icy Waters, an environmentally sustainable, Yukon-based Canadian company, thereby increasing training and employment opportunities in Canada's north and promoting the development of a "Green" Canadian company.