...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Influence of predator identity on the strength of predator avoidance responses in lobsters
【24h】

Influence of predator identity on the strength of predator avoidance responses in lobsters

机译：捕食者身份对龙虾捕食者回避反应强度的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The American lobster, Homarus americanus, is an important benthic consumer in the Gulf of Maine and supports an extremely valuable fishery in New England and eastern Canada. Meanwhile, there is substantial interest in restoring large predator fish species to the Gulf of Maine, and these predators may impact lobster populations both by consuming them and by inducing them to alter their behavior. Lobster tethering experiments were used to examine the susceptibility of a range of lobster size classes to predation in Saco Bay, Maine. The most susceptible sizes of lobsters were then exposed to three different fish predators (Atlantic striped bass Morone saxatilis, Atlantic cod Gadus morhua, and sea raven Hemitripterus americanus) separately in experimental mesocosm tanks. Juvenile lobsters moved less and spent more time in shelter when in the presence of cod or sea raven. By contrast, striped bass did not induce lobsters to alter their behavior. Striped bass are highly mobile, active pursuit predators, which are thought to induce weaker behavioral responses in prey than sit-and-pursue predators like sea ravens. Thus, differences in lobster sheltering behavior corresponded with differences in predator foraging behavior. These predator-induced changes in behavior can result in less foraging activity, which may translate into reduced lobster growth and reproduction. Efforts to model marine communities and ecosystems will benefit from a more holistic understanding of whether predators induced prey to modify their foraging behavior and habitat usage. (C) 2015 Elsevier B.V. All rights reserved.
机译：美国龙虾Homarus americanus是缅因湾的重要底栖动物消费国，在新英格兰和加拿大东部地区拥有极为宝贵的渔业资源。同时，人们非常感兴趣的是将大型捕食者的鱼类恢复到缅因州湾，这些捕食者可能通过食用龙虾并诱使他们改变其行为，从而影响龙虾种群。在缅因州的萨科湾，使用龙虾拴系实验来研究各种龙虾大小类别对捕食的敏感性。然后，将最易感的龙虾分别置于实验中型容器中分别暴露于三种不同的鱼类捕食者（大西洋条纹鲈Moron saxatilis，大西洋鳕Gadus morhua和美洲海鸦Hemitripterusus）。鳕鱼或乌鸦在场时，幼龙虾移动较少，在庇护所花费的时间更多。相比之下，条纹鲈鱼不会诱使龙虾改变其行为。条纹鲈鱼是高度活动的主动追捕捕食者，被认为比在海掠夺者中坐坐追捕的捕食者更容易引起猎物的行为反应。因此，龙虾掩护行为的差异与捕食者觅食行为的差异相对应。这些捕食者引起的行为变化可能导致觅食活动减少，这可能导致龙虾生长和繁殖减少。对捕食者是否会诱捕捕食者以改变其觅食行为和栖息地利用方式进行更全面的了解，将有助于对海洋社区和生态系统进行建模。 （C）2015 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号