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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >The influence of water motion on the growth rate of the kelp Laminaria hyperborea
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The influence of water motion on the growth rate of the kelp Laminaria hyperborea

机译：水分运动对海带海带生长速率的影响

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摘要

The kelp Laminaria hyperborea is a dominant component of the subtidal nearshore ecosystem and is subjected to a heterogeneous wave and current climate. Water motion is known to influence physiological processes in macroalgae such as photosynthesis and nutrient uptake attributed to mass-transfer limitation. The study attempts to establish the effect of water motion on the growth rates of blades and elongation rates of the stipes of L. hyperborea at adjacent wave-exposed and wave-sheltered locations over a 12 month period from field observations. The observations were supported by detailed physical and chemical measurements (light, temperature, seawater nutrient concentrations and hydrodynamics) and of tissue carbon and nitrogen concentrations together with δ~(13) carbon. Despite a 30% difference in the root mean square of the velocity (Vel_(rms)) between the two survey locations, there was no evidence to suggest that water motion had any direct influence on the growth rates of either the blades or elongation of stipes of L hyperborea. No significant differences were observed between either environmental or plant physiological variables between the sheltered and exposed locations. Using an integral velocity parameter (Vel_(rms)) the present study also highlighted the importance of the tidally induced current component of water flow in the subtidal zone.
机译：海带海带海藻是潮下近岸生态系统的主要组成部分，并受到非均质波和当前气候的影响。众所周知，水运动会影响大型藻类的生理过程，例如光合作用和归因于传质限制的养分吸收。这项研究试图通过田野观察在12个月的时间里确定水运动对邻近的受潮和受潮的位置的高产乳杆菌叶片生长速率和叶柄的伸长率的影响。这些观察得到详细的物理和化学测量（光，温度，海水养分浓度和流体动力学）以及组织碳和氮浓度以及δ〜（13）碳的支持。尽管两个调查地点之间的速度均方根（Vel_（rms））相差30％，但没有证据表明水运动对叶片的生长速率或柄的伸长有直接影响。的升华。在庇护和暴露地点之间，环境或植物生理变量之间未观察到显着差异。使用积分速度参数（Vel_（rms）），本研究还强调了潮下带水流的潮汐感应电流分量的重要性。

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  • 作者

    Louise Kregting; Andrew Blight; Bjoern Elsaesser; Graham Savidge;

  • 作者单位

    School of Planning, Architecture and Civil Engineerings, Queens University of Belfast, Northern Ireland BT7 1NN, UK,Queens University Marine Laboratory, 12-13 The Strand, Portaferry, Co. Down, Northern Ireland BT22 1PF, UK;

    School of Biological Sciences, Queens University of Belfast, Northern Ireland BT7 1NN, UK,Sediment Ecology Research Group, Scottish Oceans Institute, University of St Andrews, St Andrews, Fife KY16 8LB, UK;

    School of Planning, Architecture and Civil Engineerings, Queens University of Belfast, Northern Ireland BT7 1NN, UK;

    School of Biological Sciences, Queens University of Belfast, Northern Ireland BT7 1NN, UK;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Currents; Growth rates; Hydrodynamics; Kelp; Laminaria hyperborea; Waves;

    机译：潮流;增长率;流体力学海带;海带波浪;

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