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Understanding Risks of Long-term Introgression From Salmon Aquaculture (SSA)

了解鲑鱼养殖 (SSA) 长期渗入的风险

基本信息

批准号：
2060566
负责人：
金额：
--
依托单位：
University of East Anglia
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2060566
关键词：
Understanding Risks Long term Introgression

项目摘要

Aquaculture is identified as a key solution to satisfying increasing demands for animal protein from a growing human population. Farming fish is a relatively new form of domestication and, right now, we are at an early stage in its development, with ample opportunity to improve productivity and sustainability. Within aquaculture, salmon farming is a key player, with productivity surging since it started in 1979. Despite its great success, concerns exist about the sustainability and environmental impact of salmon farming. In this PhD project, you will research the reproductive potential of F1 hybrids between farm and wild salmon interbreeding, generating key data on long-term impacts of farm salmon escapes. These 'hybrid' fish could show reduced reproductive performance, allaying concerns about introgression, or they may have similar or even superior reproductive performance. The PhD will therefore conduct a full risk assessment of longer-term reproduction of farm x wild salmon hybrids, using both in vitro and in vivo assays of reproductive potential. The project will operate between UEA and collaborators at field sites in Norway and Scotland, conducting fertilisation experiments to measure the fitness of wild, farm and hybrid gametes, and recording and analysing spawning behaviour and performance of adult salmon.

水产养殖被确定为满足不断增长的人口对动物蛋白日益增长的需求的关键解决方案。养鱼是一种相对较新的驯化形式，目前，我们正处于其发展的早期阶段，有充分的机会提高生产力和可持续性。在水产养殖中，鲑鱼养殖是一个关键角色，自1979年开始以来，其生产率大幅提高。尽管取得了巨大的成功，但人们仍然担心鲑鱼养殖的可持续性和对环境的影响。在这个博士项目中，你将研究养殖和野生鲑鱼杂交之间F1杂交的生殖潜力，生成关于养殖鲑鱼逃逸长期影响的关键数据。这些“杂交”鱼可能表现出较低的繁殖能力，减轻了对遗传渗入的担忧，或者它们可能具有相似甚至更高的繁殖能力。因此，博士将对养殖和野生三文鱼杂交的长期繁殖进行全面的风险评估，使用体外和体内的繁殖潜力分析。该项目将在东英吉利大学和挪威和苏格兰的合作者之间开展，进行受精实验，以测量野生、养殖和杂交配子的适应性，并记录和分析成年鲑鱼的产卵行为和表现。