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Spatial variability of macrobenthic production in the Bering Sea

机译：膨化海中的宏观生成的空间变异性

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摘要

Despite being located at higher latitudes with seasonal ice-cover, the Bering shelves and slope are still one of the most productive regions of the world. Existing reports regarding marine production of the Bering Sea are mainly confined to its high water column production and high biomass of macrobenthos. Compared with biomass, secondary production estimates are more functionally based and have assumed a fundamental role in the quantification of ecosystem dynamics. Based on Brey's empirical model (in: Brey, Population dynamics in benthic invertebrates. A virtual handbook, Alfred Wegener Institute for Polar and Marine Research, Germany, 2001), macrobenthic production across the majority of the Bering Sea was quantified during the 4th, 5th and 6th Chinese Arctic Scientific Expeditions. Mean total production (TP) and community P/B for the entire survey area were 220.6 +/- 341.5kJm(-2)year(-1) and 0.4 +/- 0.2year(-1), n=46, respectively. Higher TP occurred in the shallower shelves and slope with values exceeding 131.0kJm(-2)year(-1), whereas lower TP occurred in the deep basin with values of 1.0kJm(-2)year(-1). Comprehensive analysis revealed that the sediment, water flow, temperature and depth were the major factors affecting the macrobenthic production. Owing to the relatively high biological production in the upper water column and the tight pelagic-benthic coupling, higher production occurred in the shallow shelves and slope, particularly in the northern Bering Sea. In contrast, the high-nutrient, low-chlorophyll characteristic and deficient particulate organic carbon input led to low production in the deep basin. Similar to the conditions in the Arctic and Antarctic, the energy conversion rate of macrozoobenthos was relatively low for the Bering Sea.
机译：尽管处于季节性冰盖上的更高纬度地位，但白垩架和斜坡仍然是世界上最富有成效的地区之一。有关海洋生产海洋生产的现有报告主要局限于其高水柱生产和高生物量的Macrobenthos。与生物量相比，二次生产估计在功能上基于更有用的，并且在生态系统动态的量化中具有基本作用。基于勃莉的实证模型（ZENEY，Benthic无脊椎动物的人口动态。虚拟手册，Alfred Wegener Polare和Marine Research研究所，德国，2001），大多数Bering Sea的Macrobenthic生产在第5名期间量化和第六届中国北极科学探险。平均总产量（TP）和整个测量区域的社区P / B分别为220.6 +/- 341.5kJm（-2）年（-1）和0.4 +/- 0.2year（-1），n = 46。较高的TP发生在较浅的货架和坡度超过131.0kJm（-2）年（-1）的斜率，而下TP发生在深盆中，值为1.0kJm（-2）年（-1）。综合分析表明，沉积物，水流，温度和深度是影响宏观生长生产的主要因素。由于上水柱中的生物生产相对较高，近骨盆耦合紧密，浅架和坡度较高的生产，特别是在北部白垩。相反，高营养素，低叶绿素特征和缺陷的颗粒有机碳输入导致深盆地的低产量。类似于北极和南极的条件，宏杂小症的能量转化率对于白垩的海水相对较低。

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  • 来源
    《Polar biology》 |2019年第3期|449-460|共12页
  • 作者

    Lin Heshan; Liu Kun; Wang Jianjun; Lin Junhui; Huang Yaqin; He Xuebao; Li Zhong; Zhang Shuyi; Mou Jianfeng; Liu Yanguang; Song Puqing; Wang Yu; Xing Bingpeng;

  • 作者单位

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China|Jimei Univ Fisheries Coll Xiamen 361021 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China|Tianjin Univ Sci & Technol Coll Marine Sci & Engn Tianjin 300457 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China|Jimei Univ Fisheries Coll Xiamen 361021 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 1 Key Lab Marine Sedimentol & Environm Geol Qingdao 266061 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

    State Ocean Adm Inst Oceanog 3 Lab Marine Biol & Ecol Xiamen 361005 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Secondary production; Macrobenthos; Total production; Community P; B; Bering Sea; Environmental factors;

    机译：二级生产;Macrobenthos;总产量;社区P;B;Bering Sea;环境因素;

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