1. We present StrathE2E2, an r package for modelling the whole ecosystem, or ‘big‐picture’ effects of hydrodynamics, temperature, nutrient additions and fishing on continental shelf marine food webs.
2. StrathE2E2 has two linked parts—a fishing fleet model and an ecology model. The fishing model combines harvesting, discarding and seabed disturbance rates across a range of gears and passes the results into the ecology model.
3. The ecology model is a network of coupled ordinary differential equations representing the rates of change in nitrogen mass of organic detritus, dissolved inorganic nutrient and coarse guilds of living biomass spanning microbes to megafauna. The equations include representations of feeding, metabolism, reproduction, active migrations, advection and mixing. Environmental driving data include temperature, irradiance, hydrodynamics and nutrient inputs from rivers, atmosphere and ocean boundaries.
4. The package includes functions for parameter optimization, global sensitivity analysis and Monte Carlo estimation of credible intervals for model outputs.
5. A fully developed and documented implementation for the North Sea is included with the package.

中文翻译：

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StrathE2E2：一个用于模拟海洋食物网和渔业动态的r包

1. 我们目前小号真理存在E2E2，一个[R封装为整个生态系统建模，或“大画面”流体力学，温度，营养补充和捕鱼大陆架海洋食物链的影响。
2. E trath E2E2具有两个相互联系的部分-渔船队模型和生态模型。捕捞模型结合了各种渔具的收获，丢弃和海底干扰率，并将结果传递到生态模型中。
3. 生态模型是一个耦合的常微分方程网络，代表了有机碎屑，溶解的无机养分和微生物之间的微生物质量变化的速率。这些方程式包括进食，新陈代谢，繁殖，主动迁移，对流和混合的表示。环境驱动数据包括温度，辐照度，流体动力学和来自河流，大气和海洋边界的营养输入。
4. 该软件包包括参数优化，全局灵敏度分析和模型输出可信区间的蒙特卡洛估计功能。
5. 软件包中包含针对北海的完整开发和有文档证明的实施方案。