MAREDAT: towards a world atlas of MARine Ecosystem DATa
MAREDAT: towards a world atlas of MARine Ecosystem DATa
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DOI：
10.5194/essd-5-227-2013
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发表时间：
2013-01-01
影响因子：
11.4
通讯作者：
Swan, C.
中科院分区：
文献类型：
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作者：
Buitenhuis, E. T.;Vogt, M.;Swan, C.
我们提出了一个生物量数据的摘要11浮游生物功能类型（PFTs）加上浮游植物色素数据，汇编的海洋生态系统生物量数据（MAREDAT）倡议的一部分。MAREDAT倡议的目标是在适当时候提供覆盖全球海洋生态系统所有生态组成部分的全球网格数据产品。这份特刊是实现这一目标的第一步。这里介绍的PFT包括picophytoplankton，固氮生物，颗石藻，棕囊藻，硅藻，picoheterotrophs，微型浮游动物，有孔虫，中型浮游动物，翼足类和大型浮游动物。所有变量都已网格化到世界海洋地图集（WOA）网格（1度x1度x33垂直水平x每月气候）。结果表明，丰度比其碳含量/元素组成受到更好的限制，沿海海洋和其他高生产力地区的覆盖率比生物量相对较低的大得多的地区要高得多。数据表明：（1）全球总异养生物量（2.0-4.6 Pg C）至少与总的自养生物量一样高（0.5- 2.4PgC，不包括微型浮游植物和自养甲藻）;（2）浮游动物钙化菌的生物量（0.03- 0.67PgC）明显高于颗石藻（3）生物量分布的斑块性随生物体大小的增加而增大;（4）虽然200米以下的浮游动物生物量测量很少，但现有的有限测量表明，细菌和浮游动物不是深海中唯一重要的异养生物。将需要更多的数据来研究南半球和200米以下的海洋生态系统功能和相关的海洋地球化学。通过进一步存档历史数据和未来在新地点进行采样，将有助于进一步了解海洋生态系统的组成和功能。微型浮游动物数据库：doi：10.1594/PANGAEA.779970所有MAREDAT数据库：http://www.pangaea.de/search?& q=maredat
We present a summary of biomass data for 11 plankton functional types (PFTs) plus phytoplankton pigment data, compiled as part of the MARine Ecosystem biomass DATa (MAREDAT) initiative. The goal of the MAREDAT initiative is to provide, in due course, global gridded data products with coverage of all planktic components of the global ocean ecosystem. This special issue is the first step towards achieving this. The PFTs presented here include picophytoplankton, diazotrophs, coccolithophores, Phaeocystis, diatoms, picoheterotrophs, microzooplankton, foraminifers, mesozooplankton, pteropods and macrozooplankton. All variables have been gridded onto a World Ocean Atlas (WOA) grid (1 degrees x1 degrees x33 vertical levels x monthly climatologies). The results show that abundance is much better constrained than their carbon content/elemental composition, and coastal seas and other high productivity regions have much better coverage than the much larger volumes where biomass is relatively low. The data show that (1) the global total heterotrophic biomass (2.0-4.6 Pg C) is at least as high as the total autotrophic biomass (0.5-2.4 Pg C excluding nanophytoplankton and autotrophic dinoflagellates); (2) the biomass of zooplankton calcifiers (0.03-0.67 Pg C) is substantially higher than that of coccolithophores (0.001-0.03 Pg C); (3) patchiness of biomass distribution increases with organism size; and (4) although zooplankton biomass measurements below 200 m are rare, the limited measurements available suggest that Bacteria and Archaea are not the only important heterotrophs in the deep sea. More data will be needed to characterise ocean ecosystem functioning and associated biogeochemistry in the Southern Hemisphere and below 200 m. Future efforts to understand marine ecosystem composition and functioning will be helped both by further archiving of historical data and future sampling at new locations.Microzooplankton database: doi: 10.1594/PANGAEA.779970All MAREDAT databases: http://www.pangaea.de/search?&q=maredat