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Growth dynamics of the seagrass, Zostera marina in Jindong Bay on the southern coast of Korea

机译：韩国南部沿海金东湾海藻Zostera marina的生长动态

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摘要

Growth dynamics of the seagrass, Zostera marina were examined at the two stations (Myungju and Dagu) in Jindong Bay on the southern coast of Korea. Eelgrass leaf productivities, underwater irradiance, water temperature, dissolved inorganic nitrogen (DIN) in water column and sediments, and tissue carbon (C) and nitrogen (N) content were monitored monthly from March 2002 to January 2004. Underwater irradiance fluctuated highly without a clear seasonal trend, whereas water temperature showed a distinct seasonal trend at both study stations. Water column DIN concentrations were usually less than at both study sites. Sediment pore water and concentrations were higher at the Myungju site than at the Dagu site. Eelgrass leaf productivity at both study sites exhibited a distinct seasonality, increasing during spring and decreasing during summer. Seasonal variation of eelgrass productivity was not consistent with seasonal patterns of underwater irradiance, or water temperature. Eelgrass tissue C and N content at both study sites also showed significant seasonal variations. Relationships between tissue C and N content and leaf productivities exhibited usually negative correlations at both study sites. These negative correlations implied that the growth of Z. marina at the study sites was probably limited by C and N supplies during the high growth periods.
机译：在韩国南部沿海的金洞湾的两个站（明州和大沽）考察了海草，带状疱疹的生长动态。从2002年3月至2004年1月，每月监测鳗草的叶片生产力，水下辐照度，水温，水柱和沉积物中的溶解性无机氮（DIN）以及组织碳（C）和氮（N）含量。两个研究站的水温均显示出明显的季节性趋势。水柱DIN浓度通常都低于两个研究地点。明州地区的沉积物孔隙水和浓度高于大沽地区。两个研究地点的鳗草叶生产力都表现出明显的季节性变化，春季增加，夏季减少。鳗草生产力的季节性变化与水下辐照度或水温的季节性模式不一致。两个研究地点的鳗草组织中的碳和氮含量也显示出明显的季节性变化。在两个研究地点，组织碳和氮含量与叶片生产力之间的关系通常表现为负相关。这些负相关关系暗示在高生长时期，研究地点滨海假单胞菌的生长可能受到碳和氮供应的限制。

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