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Coupling planktonic ecosystem and fisheries food web models for a pelagic ecosystem: Description and validation for the subarctic Pacific

机译：中上层生态系统的浮游生态系统和渔业食物网模型的耦合：北极亚太平洋的描述和验证

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摘要

We provide a modeling framework that fully couples a one-dimensional physical mixed layer model, a biogeochemical model, and an upper trophic level fisheries model. For validation purposes, the model has been parameterized for the pelagic Eastern Pacific Subarctic Gyre ecosystem. This paper presents a thorough description of the model itself, as well as an ensemble-based parameterization process that allows the model to incorporate the high level of uncertainty associated with many upper trophic level predator-prey processes. Through a series of model architecture experiments, we demonstrate that the use of a consistent functional response for all predator-prey interactions, as well as the use of density-dependent mortality rates for planktonic functional groups, are important factors in reproducing annual and seasonal observations. We present the results of a 50-year climatological simulation, which demonstrates that under contemporary physical forcing, the model is capable of reproducing long-term seasonal dynamics in primary production and biogeochemical cycling, while maintaining steady-state coexistence of upper trophic level functional groups at levels consistent with observations.
机译：我们提供了一个建模框架，该框架将一维物理混合层模型，生物地球化学模型和高层营养级渔业模型完全耦合在一起。为验证起见，已对远洋东太平洋亚北极涡流生态系统参数化了该模型。本文提供了对模型本身的全面描述，以及基于整体的参数化过程，该过程使模型能够结合与许多高层营养级捕食者-猎物过程相关的不确定性。通过一系列模型体系结构实验，我们证明了对所有捕食者-猎物相互作用使用一致的功能响应以及对浮游功能组使用依赖于密度的死亡率是重现年度和季节性观测结果的重要因素。我们提供了一个为期50年的气候模拟结果，该模拟结果表明，在当代的物理强迫作用下，该模型能够重现初级生产和生物地球化学循环中的长期季节性动态，同时保持较高营养级功能组的稳态共存与观察结果一致的水平。

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