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首页> 外文期刊>Marine ecology progress series >Macrofaunal irrigation traits enhance predictability of nutrient fluxes across the sediment-water interface
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Macrofaunal irrigation traits enhance predictability of nutrient fluxes across the sediment-water interface

机译：大型灌溉特性增强了沉积物-水界面上的养分通量的可预测性

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摘要

This study shows that macrofaunal irrigation traits constitute a valuable complement to sediment reworking traits in estimating macrofaunal impact on nutrient fluxes across the sediment-water interface. We correlated density, biomass, community bioturbation potential (BPc, an index based on reworking traits, body mass and density) and community irrigation potential (IPc, an index based on irrigation traits, body mass and density) with nitrite, nitrate, ammonium, silicate and phosphate flux data under different environmental conditions. Generalized linear models performed best with a combination of environmental conditions and irrigation trait-based indices. This was not only a direct effect of the irrigation traits, but also of the scaling factor 0.75 employed in IPc to infer metabolic activity from body mass. Accordingly, predictive models of nutrient flux across the sediment-water interface will profit greatly from incorporating macrofaunal irrigation behaviour by means of trait-based indices.
机译：这项研究表明，在估算大型真菌对沉积物-水界面上的养分通量的影响时，大型动物的灌溉性状构成了沉积物返工性状的宝贵补充。我们将密度，生物量，社区生物扰动潜力（BPc，基于返工特性，体重和密度的指数）与社区灌溉潜力（IPc，基于灌溉特性，体重和密度的指数）与亚硝酸盐，硝酸盐，铵盐，不同环境条件下的硅酸盐和磷酸盐通量数据。结合环境条件和灌溉特征指标，广义线性模型表现最佳。这不仅是灌溉性状的直接影响，而且是IPc中用来根据体重推断代谢活动的比例因子0.75的直接影响。因此，通过基于特征的指标结合大型动物的灌溉行为，穿过沉积物-水界面的养分通量的预测模型将大有裨益。

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  • 来源
    《Marine ecology progress series》 |2019年第12期|27-42|共16页
  • 作者

    Wrede Alexa; Andresen Henrike; Asmus Ragnhild; Wiltshire Karen Helen; Brey Thomas;

  • 作者单位

    Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Handelshafen 12 D-27570 Bremerhaven Germany|Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Hafenstr 43 D-25992 List Auf Sylt Germany|Carl von Ossietzky Univ Oldenburg Helmholtz Inst Funct Marine Biodivers Ammerlander Heerstr 231 D-26129 Oldenburg Germany|Univ Bremen Bibliothekstr 1 D-28359 Bremen Germany|Helmholtz Zentrtun Geesthacht Ctr Mat & Coastal Res Max Planck Str 1 D-21502 Geesthacht Germany;

    Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Handelshafen 12 D-27570 Bremerhaven Germany|Carl von Ossietzky Univ Oldenburg Helmholtz Inst Funct Marine Biodivers Ammerlander Heerstr 231 D-26129 Oldenburg Germany|Inst Sea Fisheries Thunen Inst Herwigstralle 31 D-27572 Bremerhaven Germany;

    Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Hafenstr 43 D-25992 List Auf Sylt Germany;

    Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Handelshafen 12 D-27570 Bremerhaven Germany|Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Hafenstr 43 D-25992 List Auf Sylt Germany|Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Biolog Anstalt Helgoland Binnenhafen 1117 D-27498 Helgoland Germany;

    Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Handelshafen 12 D-27570 Bremerhaven Germany|Helmholtz Zentrum Polar & Meeresforsch Alfred Wegener Inst Hafenstr 43 D-25992 List Auf Sylt Germany|Univ Bremen Bibliothekstr 1 D-28359 Bremen Germany;

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  • 正文语种 eng
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  • 关键词

    Bioirrigation; Bioturbation; Functional traits; Ecosystem functioning;

    机译：生物灌溉;生物扰动;功能特征;生态系统功能;

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