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High seagrass diversity and canopy-height increase associated fish diversity and abundance

机译：海草的高度多样性和冠层高度增加了相关鱼类的多样性和丰度

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摘要

Seagrass species function as typical foundation species that unifies most ecosystem processes. This ecosystem role depends largely on the morphological characteristics and structural complexity of seagrass beds, including their ecological importance for fish species. This study examined relationships between seagrass bed characteristics and associated fish communities in mixed seagrass beds. Correspondence analysis (CA) and canonical correlation analysis (CCoA) were performed to estimate relationships for individual seagrass bed characteristics. The CCoA results revealed that species richness and three-dimensional structure of seagrass had great effect on the biomass and richness of the associated fish community. The CA results revealed that the relative importance of seagrass bed characteristics differed among fish functionalrngroups including fishes appearing on the surface of, inside, and on the bottom of seagrass beds. The fishes found on the surface of the beds preferred beds with low seagrass biomass and high three-dimensional structure, those inside the beds preferred beds with high seagrass biomass and high three-dimensional structure, and those on the bottom of the beds preferred locations with low seagrass biomass and low three-dimensional structure. The results of this study provide compelling evidence that seagrass beds with high species diversity and high three-dimensional structure, but intermediate biomass, may provide the great benefit to the associated fish community. Such niche complementarity among fishes may be a process facilitated by seagrass diversity for secondary production as an ecosystem functioning.
机译：海草物种起着统一大多数生态系统过程的典型基础物种的作用。生态系统的作用主要取决于海草床的形态特征和结构复杂性，包括其对鱼类的生态重要性。这项研究检查了混合海草床中海草床特性与相关鱼类群落之间的关系。进行了对应分析（CA）和规范相关分析（CCoA）来估计各个海草床特征的关系。 CCoA结果表明，海草的物种丰富度和三维结构对相关鱼类群落的生物量和丰富度影响很大。 CA结果表明，海草床特征的相对重要性在鱼类功能组之间有所不同，其中包括出现在海草床的表面，内部和底部的鱼类。在床层表面发现的鱼类首选海藻生物量低，三维结构高的鱼类，在床内发现的鱼类首选海藻生物量高，三维结构高的鱼类，而在床底的鱼类优选具有高海藻生物量和三维结构的鱼类。低海草生物量和低三维结构。这项研究的结果提供了令人信服的证据，表明具有高物种多样性和高三维结构但生物量中等的海草床可能为相关的鱼类群落带来巨大的利益。鱼类之间的这种生态位互补性可能是海草多样性促进作为生态系统功能的次级生产的过程。

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  • 来源
    《Marine biology》 |2009年第7期|1447-1458|共12页
  • 作者

    Masakazu Hori; Takao Suzuki; Yaowaluk Monthum; Tippamas Srisombat; Yoshiyuki Tanaka; Masahiro Nakaoka; Hiroshi Mukai;

  • 作者单位

    National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, Hatsukaichi, Hiroshima 739-0452, Japan;

    Graduate School of Life Science, Tohoku University, Sendai, Miyagi 980-8578, Japan;

    Faculty of Fisheries, Kasetsart University, Bangkhen, Bangkok 10900, Thailand;

    Faculty of Fisheries, Kasetsart University, Bangkhen, Bangkok 10900, Thailand;

    Ocean Research Institute, The University of Tokyo, Nakano-ku, Tokyo 164-8639, Japan;

    Graduate School of Science, Chiba University, Inage, Chiba 263-8522, Japan Field Science Center for Northern Biosphere, Hokkaido University, Akkeshi-cho, Akkeshi-gun, Hokkaido 088-1113, Japan;

    Field Science Center for Northern Biosphere, Hokkaido University, Akkeshi-cho, Akkeshi-gun, Hokkaido 088-1113, Japan Field Science Education and Research Center, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan;

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