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首页> 外文期刊>ICES Journal of Marine Science >Quantifying carbon fluxes from primary production to mesopelagic fish using a simple food web model
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Quantifying carbon fluxes from primary production to mesopelagic fish using a simple food web model

机译：使用简单的食物网模型量化从初级生产到中生鱼类的碳通量

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An ecosystem-based flow analysis model was used to study carbon transfer from primary production (PP) to mesopelagic fish via three groups of copepods: detritivores that access sinking particles, vertical migrators, and species that reside in the surface ocean. The model was parameterized for 40 degrees S to 40 degrees N in the world ocean such that results can be compared with recent estimates of mesopelagic fish biomass in this latitudinal range, based on field studies using acoustic technologies, of similar to 13 Gt (wet weight). Mesopelagic fish production was predicted to be 0.32% of PP which, assuming fish longevity of 1.5 years, gives rise to predicted mesopelagic fish biomass of 2.4 Gt. Model ensembles were run to analyse the uncertainty of this estimate, with results showing predicted biomass >10 Gt in only 8% of the simulations. The work emphasizes the importance of migrating animals in transferring carbon from the surface ocean to the mesopelagic zone. It also highlights how little is known about the physiological ecology of mesopelagic fish, trophic pathways within the mesopelagic food web, and how these link to PP in the surface ocean. A deeper understanding of these interacting factors is required before the potential for utilizing mesopelagic fish as a harvestable resource can be robustly assessed.
机译：基于生态系统的流量分析模型用于研究通过三类of足类动物从初级产品（PP）到中生鱼类的碳转移：进入下沉颗粒的除草剂，垂直迁徙者以及生活在表层海洋中的物种。在世界海洋中将模型参数化为40°S至40°N，以便可以将结果与该纬度中近中鱼类生物量的最新估计值进行比较，这是基于使用声学技术进行的田间研究得出的，类似于13 Gt（湿重） ）。预计中生鱼类的PP含量为0.32％，假设鱼的寿命为1.5年，则中生鱼类的生物量预计为2.4 Gt。运行模型集成来分析此估计的不确定性，结果仅在8％的模拟中显示出预测的生物量> 10 Gt。这项工作强调了迁移动物在将碳从表层海洋转移到中近地带的重要性。它还强调了对中生鱼类的生理生态学，中生食物网中的营养途径以及这些物质与表层海洋中的PP的联系知之甚少。需要对这些相互作用因素有更深入的了解，然后才能稳固地评估将中古鱼类用作可捕捞资源的潜力。

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