School of Biological Sciences, Queen's University Belfast, BT9 7BL, UK.
Mar Pollut Bull. 2010 Jul;60(7):1059-64. doi: 10.1016/j.marpolbul.2010.01.020. Epub 2010 Mar 1.
The Pacific oyster (Crassostrea gigas) was introduced into Strangford Lough, Northern Ireland in the 1970s. It was assumed that local environmental conditions would not facilitate successful reproduction. However, in the 1990s there were reports of C. gigas outside licensed aquaculture sites and this investigation set out to ascertain the current distribution, years of likely recruitment and population structure of the species. C. gigas were found distributed widely throughout the northern basin during surveys; the frequency distribution suggesting C. gigas is not recruiting every year. Establishment of feral populations of C. gigas elsewhere have linked to habitat change. A pilot cull was initiated to assess the success rate of early intervention. This paper demonstrates the potential benefits of responding rapidly to initial reports of non-native species in a way that may curtail establishment and expansion. The method advocated in simple and can be recommended to the appropriate regulatory authorities.
太平洋牡蛎（Crassostrea gigas）于 20 世纪 70 年代引入北爱尔兰的斯特兰福德湖。当时的假设是，当地的环境条件不会有利于其成功繁殖。然而，在 20 世纪 90 年代，有报道称在许可的水产养殖区外发现了 C. gigas，本调查旨在确定该物种的当前分布、可能的繁殖年限和种群结构。在调查过程中，在北部盆地广泛发现了 C. gigas；频率分布表明 C. gigas 并非每年都在繁殖。其他地方的 C. gigas 野生种群的建立与栖息地的变化有关。已经启动了一项试点清除行动，以评估早期干预的成功率。本文展示了快速响应初始非本地物种报告的潜在好处，这可能会阻止其建立和扩张。所提倡的方法简单，可以向适当的监管机构推荐。
