Habitat selection by marine larvae in changing chemical environments
Habitat selection by marine larvae in changing chemical environments
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DOI：
10.1016/j.marpolbul.2016.08.083
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发表时间：
2017-01-15
影响因子：
5.8
通讯作者：
Nakamura, Y.
中科院分区：
文献类型：
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作者：
Lecchini, D.;Dixson, D. L.;Nakamura, Y.
海洋物种的补充和持久性取决于将幼虫分散到适当的生境并存活到繁殖阶段。浮游幼虫依赖于环境线索，使行为的决定与化学信息是重要的栖息地选择在定居点。我们探索了甲壳类动物和鱼类的感官世界，重点是人为改变（海洋酸化，红壤，农药）对幼虫用于栖息地选择的同种化学信号的影响。甲壳动物（Stenopus hispidus）和鱼类（Chromis viridis）幼虫通过控制条件下的化学信号识别其同种。在酸化水，红壤或农药的存在下，幼虫的化学识别同种线索的能力被改变。我们的研究强调，由于人为压力，珊瑚礁的招聘潜力可能会减少。如果是这样，鱼类和甲壳类动物的数量将继续迅速减少;幼虫的补充将无法取代和维持退化珊瑚礁上的成年种群。(C)2016爱思唯尔有限公司版权所有。
The replenishment and persistence of marine species is contingent on dispersing larvae locating suitable habitat and surviving to a reproductive stage. Pelagic larvae rely on environmental cues to make behavioural decisions with chemical information being important for habitat selection at settlement. We explored the sensory world of crustaceans and fishes focusing on the impact anthropogenic alterations (ocean acidification, red soil, pesticide) have on conspecific chemical signals used by larvae for habitat selection. Crustacean (Stenopus hispidus) and fish (Chromis viridis) larvae recognized their conspecifics via chemical signals under control conditions. In the presence of acidified water, red soil or pesticide, the ability of larvae to chemically recognize conspecific cues was altered. Our study highlights that recruitment potential on coral reefs may decrease due to anthropogenic stressors. If so, populations of fishes and crustaceans will continue their rapid decline; larval recruitment will not replace and sustain the adult populations on degraded reefs. (C) 2016 Elsevier Ltd. All rights reserved.