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（halibut PSC）管理政策带来的经济与生态后果。本项目包含三项建模任务：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，以及针对白令海-阿留申群岛（BSAI）非鳕科底拖网船队的RERUM选址数据集。

区域-时间-物种丰度模型所需的数据涵盖渔业、环境、经济与管理相关内容，覆盖白令海、阿留申群岛与阿拉斯加湾海域，数据为特定划定海域的日度数据，时间跨度为2008年至2018年。由于研究工作坊上传限额限制，该模型的输出数据被分为两部分：AbundanceOutput_confidential_1.csv与AbundanceOutput_confidential_2.csv。使用时需按行合并这两份数据（将2号文件追加至1号文件之后）。同时提供模型输入数据与shapefiles。

理性预期随机效用最大化（RERUM）估计器的建模代码，用于估计时空渔业行为模型的参数，该模型纳入了带有可交易年度捕捞配额短期权利的渔业的动态与一般均衡要素。RERUM估计器代码采用MATLAB编程语言编写。

针对白令海-阿留申群岛（BSAI）非鳕科底拖网（即80号修正案）船队的RERUM选址模型数据集，包含公开可得的第三方数据（如物种专属总可捕捞量（TAC）配额分配）、单位捕捞努力量渔获量（CPUE，来自本项目的丰度模型）的时空估计值，以及机密数据（如北太平洋观察员项目记录的作业选址与捕捞量数据）。数据集已对机密数据进行了脱敏处理。