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首页> 外文期刊>Marine ecology progress series >Understanding community-habitat associations of temperate reef fishes using fine-resolution bathymetric measures of physical structure
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Understanding community-habitat associations of temperate reef fishes using fine-resolution bathymetric measures of physical structure

机译：使用高分辨率的物理结构测深仪来了解温带礁鱼的社区-栖息地协会

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摘要

Multibeam sonar (MBS) hydro-acoustic technology allows for inexpensive, broad-scale, fine-resolution assessment of marine fish habitats. Parallel advancements in geographic information systems and new analytical techniques are providing researchers with the ability to generate informative surrogate predictors of biodiversity and species responses. The aim of this study was to determine whether fine-scale bathymetric derivatives of MBS survey data could be effectively applied as surrogates to explain spatial patterns in reef fish diversity and species-habitat relationships. In the absence of direct metrics of habitat, these derivatives might prove to be effective tools for marine spatial planning. Species-habitat relationships were examined across a marine reserve on the south-eastern coast of Tasmania at fine spatial scales using boosted regression tree analyses. The most important explanatory variables of community diversity were those describing the degree of reef aspect deviation from east and south (seemingly as a proxy for swell exposure), reef bathymetry (depth), plane and slope. Models could account for up to 30 % of the spatial variability in measures of species diversity. Responses in species abundance and occurrence to habitat structure appeared to be largely species-specific at the scales investigated. Models accounted for up to 67 % and 58 % of the abundance and occurrence, respectively, for the southern hulafish Trachinops caudimaculatus. Our results demonstrate that multibeam-derived metrics of reef habitat structure, employed in combination with modern modelling approaches, have the potential to explain and predict fine-resolution patterns in temperate reef fish community structure. This knowledge is urgently required to effectively manage marine ecosystems and conserve biodiversity and fisheries resources.
机译：多波束声纳（MBS）水声技术可对海洋鱼类栖息地进行廉价，大规模，高分辨率的评估。地理信息系统和新分析技术的并行发展使研究人员能够生成有关生物多样性和物种响应的信息性替代预测指标。这项研究的目的是确定MBS调查数据的精细测深图衍生物是否可以有效地用作替代，以解释礁鱼多样性和物种-栖息地关系的空间格局。在没有直接的生境度量标准的情况下，这些衍生物可能被证明是海洋空间规划的有效工具。使用加强回归树分析，在塔斯马尼亚岛东南海岸的一个海洋保护区中，以良好的空间尺度检查了物种-栖息地之间的关系。群落多样性最重要的解释变量是那些描述礁石纵横向偏离东西方（看来是潮涌暴露的代表），礁石测深（深度），平面和坡度的变量。在物种多样性测量中，模型最多可占空间变异性的30％。在调查的尺度上，物种丰富度和发生对栖息地结构的响应似乎在很大程度上是特定于物种的。模型分别占南部草裙鱼Trachinops caudimaculatus的丰度和发生率的67％和58％。我们的结果表明，与现代建模方法结合使用的多波束衍生的礁石栖息地结构度量标准有可能解释和预测温带礁鱼群落结构的精细分辨率模式。迫切需要这些知识，以有效管理海洋生态系统并保护生物多样性和渔业资源。

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  • 来源
    《Marine ecology progress series》 |2014年第23期|213-229|共17页
  • 作者

    Matthew J. Cameron; Vanessa Lucieer; Neville S. Barrett; Craig R. Johnson; Graham J. Edgar;

  • 作者单位

    Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004, Australia;

    Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004, Australia;

    Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004, Australia;

    Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004, Australia;

    Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004, Australia;

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  • 正文语种 eng
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  • 关键词

    Temperate reefs; Remote sensing; Bathymetric derivatives; Physical structure; Fish-habitat relationships;

    机译：温带珊瑚礁;遥感;水深衍生物;物理结构;鱼栖关系;

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