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首页> 外文期刊>Marine biology >How wave exposure, group size and habitat complexity influence foraging and population densities in fishes of the genus Halichoeres (Perciformes: Labridae) on tropical rocky shores
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How wave exposure, group size and habitat complexity influence foraging and population densities in fishes of the genus Halichoeres (Perciformes: Labridae) on tropical rocky shores

机译：波浪暴露，种群规模和栖息地复杂性如何影响热带石质海岸盐生鲑科（鲈形目：唇形科）鱼类的觅食和种群密度

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摘要

Wave exposure and habitat complexity have been used to explain variations in the distribution patterns and behavior of many reef fishes. This study analyzed the influence of both factors on density and foraging activity, and the influence of group size on foraging in three species of the genus Halichoeres (Labridae) on tropical rocky shores. It was shown that initial phases (IP) and terminal phases (TP) Halichoeres, were influenced by wave exposure, although foraging in Halichoeres brasiliensis TP was not influenced by wave exposure. The IP in all three species were positively associated with rugosity and algal cover while the TP was positively associated with depth. Habitat complexity also influences foraging in these species. Group size influenced foraging activity, except in H. brasiliensis TP. We also found variations in micro-habitat patches used for foraging between species and differences in the stomach contents between species and phases, showing that functional roles change in response to ontogenetic shifts.
机译：波浪暴露和栖息地复杂性已被用来解释许多礁鱼的分布模式和行为的变化。这项研究分析了这两个因素对密度和觅食活动的影响，以及群体大小对热带多岩石海岸上的三种葫芦属（唇形科）觅食的影响。结果表明，尽管暴露于波状硅藻中的觅食不受波状暴露的影响，但盐藻的初始阶段（IP）和末端相（TP）却受到波状暴露的影响。这三个物种的IP与皱纹度和藻类覆盖度呈正相关，而TP与深度呈正相关。栖息地的复杂性也会影响这些物种的觅食。群体大小影响了觅食活动，除了在巴西H. TP中。我们还发现了用于物种间觅食的微栖息地斑块的变化，以及物种和阶段之间胃内容物的差异，表明功能角色响应个体发生的变化而变化。

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  • 来源
    《Marine biology》 |2013年第9期|2383-2394|共12页
  • 作者

    Jose de Anchieta C. C. Nunes; Claudio L. S. Sampaio; Francisco Barros;

  • 作者单位

    Laboratorio de Ecologia Bentonica, Universidade Federal da Bahia, Rua Barao de Geremoabo, s Ondina, Salvador, BA 40170-115, Brazil,Programa de P6s Graduacao em Ecologia e Biomonitoramento, Universidade Federal da Bahia, Salvador, BA, Brazil;

    Departamento de Engenharia de Pesca, Unidade de Ensino Penedo, Universidade Federal de Alagoas, Alagoas, Brazil;

    Laboratorio de Ecologia Bentonica, Universidade Federal da Bahia, Rua Barao de Geremoabo, s Ondina, Salvador, BA 40170-115, Brazil,Programa de P6s Graduacao em Ecologia e Biomonitoramento, Universidade Federal da Bahia, Salvador, BA, Brazil;

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