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首页> 外文期刊>Oceanologia >Summer distribution patterns of Trichodesmium spp. in the Changjiang (Yangtze River) Estuary and adjacent East China Sea shelf
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Summer distribution patterns of Trichodesmium spp. in the Changjiang (Yangtze River) Estuary and adjacent East China Sea shelf

机译：夏季分布模式SPP。 在长江（长江）河口和毗邻东海货架

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摘要

To examine the distribution of Trichodesmium relative to physicochemical factors during summer in the Changjiang (Yangtze River) Estuary and adjacent East China Sea shelf, three cruises were conducted separately in June 2009, July 2011, and August 2009. Trichodesmium species found were T. thiebautii, T. erythraeum, and T. hildebrandtii. The population was dominated by T. thiebautii, which accounted for >85% of the samples found. Most of them were free trichomes. Colonial forms were rarely observed (approximately 10% of our samples), occurring only in offshore waters. The depth integrated abundances of Trichodesmium were 308 x 10(3), 1709 x 10(3), and 3448 x 10(3) trichomes m(-2) in June, July, and August, respectively. Trichodesmium was distributed abundantly in the southern or southeastern part of our study area, where nutrients were low and light penetration, temperature, and salinity were high, which were influenced by the Taiwan Warm Current (TWC) and Kuroshio. Trichodesmium was found in low abundance in inshore, eutrophic, low-salinity waters, which were mainly controlled by the Changjiang Diluted Water (CDW) and coastal current. These results suggest that spatiotemporal changes in the summer Trichodesmium distribution correlate highly with the variations in physicochemical properties that are primarily controlled by the TWC, Kuroshio, and CDW. The summer N-2 fixation rate of Trichodesmium was estimated at 12.3 mu mol N m(-2) d(-1) in our study area, contributing >50% of biological N-2 fixation. (C) 2017 Institute of Oceanology of the Polish Academy of Sciences. Production and hosting by Elsevier Sp. z o. o.
机译：在长江（长江）河口和邻近东海街道的夏季期间，在夏季进行物理化学因素的分布，2009年6月，2011年7月和2009年8月分别进行三次巡航。发现患有T. Thiebautii ，T. erythraeum和T. Hildebrandtii。这些人口由T.Thiebautii主导，占发现> 85％的样本。他们中的大多数是免费毛状体。殖民形式很少观察到（大约10％的样品），只在海上水域发生。 3月，7月和8月，33月和8月，粒子的深度综合丰度为308×10（3），1709×10（3）粒细胞M（-2）。 Trichodesmium在我们的研究区域的南部或东南部大量分布，其中营养成分低，渗透性，温度和盐度高，受台湾温控（TWC）和Kuroshio的影响。在近孔，富营养化，低盐度水域低丰度中发现了Trichodesmium，主要由长江稀释水（CDW）和沿海电流控制。这些结果表明，夏季滴度分布的时空变化具有高度关联，主要由TWC，Kuroshio和CDW控制的物理化学性质的变化。在我们的研究区内估计夏季N-2固定率为12.3μmm（-2）d（-1），有助于> 50％的生物N-2固定。 （c）2017年波兰科院海洋学院。由elsevier sp生产和托管。 z o。 o

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  • 来源
    《Oceanologia》 |2017年第3期|共14页
  • 作者

    Jiang Zhibing; Chen Jianfang; Zhou Feng; Zhai Hongchang; Zhang Dongsheng; Yan Xiaojun;

  • 作者单位

    Ningbo Univ Key Lab Appl Marine Biotechnol Minist Educ Marine Coll Ningbo 31521 Zhejiang Peoples R China;

    State Ocean Adm Inst Oceanog 2 Key Lab Marine Ecosyst &

    Biogeochem Hangzhou 310012 Zhejiang Peoples R China;

    State Ocean Adm Inst Oceanog 2 State Key Lab Satellite Ocean Environm Dynam Hangzhou Zhejiang Peoples R China;

    State Ocean Adm Inst Oceanog 2 Key Lab Marine Ecosyst &

    Biogeochem Hangzhou 310012 Zhejiang Peoples R China;

    State Ocean Adm Inst Oceanog 2 Key Lab Marine Ecosyst &

    Biogeochem Hangzhou 310012 Zhejiang Peoples R China;

    Ningbo Univ Key Lab Appl Marine Biotechnol Minist Educ Marine Coll Ningbo 31521 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋学;
  • 关键词

    Trichodesmium; Changjiang Estuary; East China Sea; Changjiang Diluted Water; Taiwan Warm Current; Kuroshio;

    机译：Trichodesmium;长江口;东海;长江稀释水;台湾暖流;金子;

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