Fisheries, Environmental, Economic and Management data and models for area-time-species abundance, location choice, and RERUM, 2008-2018, Alaska

This project presents an empirical modeling approach for predicting the economic and ecological consequences of alternative halibut PSC management policies. There are three modeling efforts represented: area-time-species abundance, Rational Expectations Random Utility Maximization (RERUM) Estimator, and RERUM Location Choice Data for the BSAI Groundfish Non-pollock Trawl Fleet. Fisheries, Environmental, Economic and Management data for model of area-time-species abundance. Bering Sea, Aleutian Islands and Golf of Alaska Areas. Daily data for specially defined areas. 2008-2018. Because of Research Workshop upload limits, output data is divided into two parts. AbundanceOutput_confidential_1.csv and AbundanceOutput_confidential_2.csv. These data should be combined rowise to use (append 2 on 1). Model input data and shapefiles are also provided. Modeling code for the Rational Expectations Random Utility Maximization (RERUM) estimator estimates the parameters of a spatiotemporal fishing behavior model that incorporates the dynamic and general equilibrium elements of fisheries with tradable short-term rights of annual catch entitlements. The RERUM estimator code is written in the MATLAB programming language. The RERUM location-choice model for the BSAI groundfish non-pollock trawl (i.e., the Amendment 80) fleet dataset is comprised of publicly available third-party data (e.g., species-specific TAC allocations), spatiotemporal estimates of CPUE (from our abundance model), and confidential data (e.g., location choices and harvests from the North Pacific observer program). Confidential data have been censored from the dataset.

本项目提出了一种经验建模方法，用于预测不同大比目鱼PSC管理政策所引发的经济与生态后果。本数据集包含三项核心建模工作：区域-时间-物种丰度模型、理性预期随机效用最大化（RERUM）估计器，以及面向白令海-阿留申群岛（Bering Sea-Aleutian Islands, BSAI）底层非鳕拖网船队的RERUM选址数据集。

针对区域-时间-物种丰度模型的渔业、环境、经济与管理数据，覆盖白令海、阿留申群岛与阿拉斯加湾海域，数据为特定划定区域的日度观测值，时间跨度为2008年至2018年。

由于研究工坊上传额度限制，输出数据被拆分为两部分：AbundanceOutput_confidential_1.csv与AbundanceOutput_confidential_2.csv。使用时需按行合并两份数据（将第二份追加至第一份之后）。本数据集同时提供模型输入数据与shapefile矢量文件。

用于理性预期随机效用最大化（RERUM）估计器的建模代码，可拟合时空捕鱼行为模型的参数，该模型纳入了带有可交易短期年度捕捞权配额的渔业的动态与一般均衡特征。RERUM估计器代码采用MATLAB编程语言编写。

面向白令海-阿留申群岛（BSAI）底层非鳕拖网（即第80号修正案船队）的RERUM选址模型数据集，由三类数据构成：公开可获取的第三方数据（如物种专属总允许捕捞量（Total Allowable Catch, TAC）配额分配结果）、源自本项目丰度模型的单位捕捞努力量渔获量（Catch Per Unit Effort, CPUE）时空估计值，以及保密数据（如北太平洋观察员计划记录的捕捞位置选择与渔获量数据）。

本数据集已对保密数据进行了脱敏处理。