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

鲷鱼（Acanthopagrus spp.）是澳大利亚东部几个有价值和被大量开发的渔业的基础，但两个主要物种，黄鳍鱼（A. australis）和黑鳍鱼（A, butcheri），杂交显著。这种杂交几乎没有记录，而且随着收成的增加，可能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，并对两个物种的遗传多样性产生影响。我们将使用分子遗传学和育种实验的创新组合来：(1)确定杂交的频率和方向；（ii）推断河口间遗传联系的强度；（三）探讨对可持续渔业管理的影响。

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.