Patterns of mesozooplankton community composition and vertical fluxes in the global ocean
Patterns of mesozooplankton community composition and vertical fluxes in the global ocean
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全球海洋中型浮游动物群落组成和垂直通量模式
DOI：
10.1101/2021.07.20.452978
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
L. Stemmann
中科院分区：
文献类型：
--
作者：
Y. D. Soviadan;F. Benedetti;Manoela C. Brandão;S. Ayata;J. Irisson;J. Jamet;R. Kiko;F. Lombard;K. Gnandi;L. Stemmann
物理和化学条件的垂直变化驱动海洋浮游动物群落多样性和组成的变化。反过来，浮游动物群落在调节海洋表层产生的有机物向深层转移方面发挥着关键作用。然而，浮游动物群落组成和颗粒垂直通量的强度之间的联系仍然难以捉摸，特别是在全球范围内。在这里，我们提供了一个全面的分析浮游动物群落组成和垂直粒子通量在全球海洋的上千米的变化。浮游动物样品收集了五个深度层和垂直粒子通量进行了评估，使用连续配置文件的水下视觉轮廓仪（UVP 5）在57个站，覆盖7个海洋盆地。浮游动物样品进行了分析，使用Zooscan和个别生物分为19组的定量分析。浮游动物丰度、生物量和颗粒物垂直通量在各纬度从表层到1000 m深度呈下降趋势。浮游动物丰度的下降率在氧气最小值（< 5µmol O2.kg−1）的地点更强，大多数浮游动物群体的丰度显着下降，除了鱼类，软体动物，环节动物，大型原生动物和少数桡足类家庭。在这种缺氧的网站，垂直粒子通量的衰减率较弱。典范冗余分析表明，上层浮游动物群落组成取决于表层浮游植物的群落结构和产生的颗粒有机质的数量和质量。我们提供了一个一致的浮游生物群落结构的基线，以及垂直通量的估计，并有助于我们了解全球海洋上千米的全球浮游动物动态。我们的研究结果进一步表明，未来的变化，在表层浮游植物组成和中层氧损失可能会导致浮游动物丰度和群落结构的深刻变化，在真光层和中层海洋。这些变化可能会影响垂直出口，从而影响生物碳泵的强度
Vertical variations in physical and chemical conditions drive changes in marine zooplankton community diversity and composition. In turn, zooplankton communities play a critical role in regulating the transfer of organic matter produced in the surface ocean to deeper layers. Yet, the links between zooplankton community composition and the strength of vertical fluxes of particles remain elusive, especially on a global scale. Here, we provide a comprehensive analysis of variations in zooplankton community composition and vertical particle flux in the upper kilometer of the global ocean. Zooplankton samples were collected across five depth layers and vertical particle fluxes were assessed using continuous profiles of the Underwater Vision Profiler (UVP5) at 57 stations covering seven ocean basins. Zooplankton samples were analysed using a Zooscan and individual organisms were classified into 19 groups for the quantitative analyses. Zooplankton abundance, biomass and vertical particle flux decreased from the surface to 1000m depth at all latitudes. The zooplankton abundance decrease rate was stronger at sites characterised by oxygen minima (< 5µmol O2.kg−1) where most zooplankton groups showed a marked decline in abundance, except the jellyfishes, molluscs, annelids, large protists and a few copepod families. The attenuation rate of vertical particle fluxes was weaker at such oxygen-depleted sites. Canonical redundancy analyses showed that the epipelagic zooplankton community composition depended on the community structure of surface phytoplankton and the quantity and the quality of the produced particulate organic matter. We provide a consistent baseline of plankton community structure together with estimates of vertical flux and a contribution to our understanding of global zooplankton dynamics in the upper kilometer of the global ocean. Our results further suggest that future changes in surface phytoplankton composition and mesopelagic oxygen loss might lead to profound changes in zooplankton abundance and community structure in both the euphotic and mesopelagic ocean. These changes may affect the vertical export and hereby the strength of the biological carbon pump
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影响因子：
13.6
作者：
K. Wishner;B. Seibel;C. Roman;C. Deutsch;Dawn M. Outram;C. Shaw;Matthew A. Birk;K. Mislan;
通讯作者：
K. Wishner;B. Seibel;C. Roman;C. Deutsch;Dawn M. Outram;C. Shaw;Matthew A. Birk;K. Mislan;
影响因子：
4.9
作者：
Tutasi, Pritha;Escribano, Ruben
通讯作者：
Escribano, Ruben
影响因子：
4.9
作者：
Cavan, Emma L.;Henson, Stephanie A.;Sanders, Richard
通讯作者：
Sanders, Richard
影响因子：
3.7
作者：
M. Stukel;M. Ohman;T. Kelly;Tristan Biard
通讯作者：
M. Stukel;M. Ohman;T. Kelly;Tristan Biard
影响因子：
64.5
作者：
Ibarbalz, Federico M.;Henry, Nicolas;Zinger, Lucie
通讯作者：
Zinger, Lucie