A genetic and experimental assessment of the frequency and importance of hybridisation of Black and Yellow Fin Bream.

对黑鳍鲷和黄鳍鲷杂交的频率和重要性进行遗传和实验评估。

• 批准号: LP0455840
• 负责人: Prof David Ayre
• 金额: $ 7.85万
• 依托单位: University of Wollongong
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-02-21 至 2008-02-20
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0455840
• 关键词: genetic; experimental; assessment; frequency; importance

Bream (Acanthopagrus spp.) species underpin several valuable and heavily exploited fisheries in eastern Australia, but the two principal species, yellowfin (A. australis) and black (A, butcheri), interbreed significantly. This hybridisation is poorly documented and, with increasing harvests, could lead to long-term economic impacts and severe repercussions on biodiversity. It could, for example, increase the risk of localised extinctions and impact on genetic diversity of both species. We will use an innovative combination of molecular genetics and breeding experiments to: (i) determine frequency and direction of hybridisation; (ii) infer strength of genetic connections among estuaries; and, (iii) explore implications for sustainable fisheries management.

罗非鱼(Acanthopagus spp.)黄鳍金枪鱼和黑鳍金枪鱼是澳大利亚东部几个有价值的和被大量开发的渔业的基础，但两个主要物种黄鳍和黑鳍显著杂交。这种杂交的记录很少，随着收成的增加，可能会导致长期的经济影响和对生物多样性的严重影响。例如，它可能会增加局部灭绝的风险，并对这两个物种的遗传多样性产生影响。我们将利用分子遗传学和育种实验的创新组合：(I)确定杂交的频率和方向；(Ii)推断河口之间遗传联系的强度；以及(Iii)探索对可持续渔业管理的影响。