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Zooplankton and the Ocean Carbon Cycle
Annual Review of Marine Science ( IF 14.3 ) Pub Date : 2017-01-03 00:00:00 , DOI: 10.1146/annurev-marine-010814-015924
Deborah K. Steinberg 1 , Michael R. Landry 2
Affiliation  

Marine zooplankton comprise a phylogenetically and functionally diverse assemblage of protistan and metazoan consumers that occupy multiple trophic levels in pelagic food webs. Within this complex network, carbon flows via alternative zooplankton pathways drive temporal and spatial variability in production-grazing coupling, nutrient cycling, export, and transfer efficiency to higher trophic levels. We explore current knowledge of the processing of zooplankton food ingestion by absorption, egestion, respiration, excretion, and growth (production) processes. On a global scale, carbon fluxes are reasonably constrained by the grazing impact of microzooplankton and the respiratory requirements of mesozooplankton but are sensitive to uncertainties in trophic structure. The relative importance, combined magnitude, and efficiency of export mechanisms (mucous feeding webs, fecal pellets, molts, carcasses, and vertical migrations) likewise reflect regional variability in community structure. Climate change is expected to broadly alter carbon cycling by zooplankton and to have direct impacts on key species.

中文翻译:


浮游动物与海洋碳循环

海洋浮游动物包括在上层食物网中占据多个营养级的原生动物和后生动物的系统发育和功能多样化的组合。在这个复杂的网络中,通过替代性浮游动物途径的碳流驱动了生产-放牧耦合,养分循环,出口以及向更高营养水平的转移效率的时空变化。我们通过吸收,消化,呼吸,排泄和生长(生产)过程探索浮游动物食物摄入加工的当前知识。在全球范围内,碳通量受到微浮游动物的放牧影响和中浮游动物的呼吸需求的合理限制,但对营养结构的不确定性敏感。相对重要性,综合幅度,出口机制(粘液喂养网,粪便颗粒,蜕皮,car体和垂直迁徙)的效率同样反映了社区结构的区域差异。预计气候变化将广泛改变浮游动物的碳循环,并直接影响关键物种。

更新日期:2017-01-03
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