Estimate of total Alaskan salmon abundance by region, 2000-2015

This dataset compiles salmon escapement data from Alaska Department of Fish and Game reports and salmon harvest data from commercial, personal use, sport fish, and subsistence sectors to generate an estimate of total salmon abundance in each of the regions defined by the State of Alaska's Salmon and People Project (SASAP). This dataset was assembled to enable a broad view of the salmon resource, whether biological (escapement) or economic/cultural (harvest), across regions. With that intent in mind, a fish is counted within a region if it escaped a fishery and was counted in a river that is contained within that region, or if it was caught in a fishery that is within the region. For commercial fisheries, each commercial fishing district was assigned to a region based on the location of the commercial fishing district relative to the bounding watersheds of the region. No effort was made to determine the region of origin for any commercially caught fish - thus for some regions, fish caught in one region may have been headed to spawn in another. This is especially true of Alaska Peninsula and Aleutian Islands commercial fishing areas, which are well known for having large amounts of Bristol Bay bound fish. Note that some regions have missing escapement data during some years. This dataset includes an R Markdown file which processes the original data and creates figures, the rendered html file generated from running the R Markdown file which includes many figures and data explanation, and several standalone versions of those figures. Data sources: Jeanette Clark and Alaska Department of Fish and Game, Division of Commercial Fisheries Alaska Department of Fish and Game, Division of Sport Fish Alaska Department of Fish and Game, Division of Subsistence. Harvest of Salmon across Commercial, Subsistence, Personal Use, and Sport Fish sectors, Alaska, 1995-2016. Knowledge Network for Biocomplexity. doi:10.5063/F1TT4P73 Andrew Munro and Eric Volk. 2018. Summary of Pacific Salmon Escapement Goals in Alaska with a Review of Escapements from 2001 to 2009. Knowledge Network for Biocomplexity. doi:10.5063/F1416VB4 Andrew Munro and Eric Volk. 2017. Summary of Pacific Salmon Escapement Goals in Alaska with a Review of Escapements from 2007 to 2015. Knowledge Network for Biocomplexity. doi:10.5063/F1GX48V4 James Savereide. 2017. Estimated annual Chinook Salmon escapement at Copper River from 1980 to 2016. Knowledge Network for Biocomplexity. doi:10.5063/F1G15Z4D.

本数据集整合了来自阿拉斯加鱼类与野生动物保护局（Alaska Department of Fish and Game）报告的鲑鱼逃逸量（escapement）数据，以及商业、个人使用、休闲垂钓和自给渔业领域的鲑鱼捕捞数据，以此估算阿拉斯加州鲑鱼与人类项目（Salmon and People Project, SASAP）划定的各区域内的鲑鱼总丰度。

本数据集的构建旨在全面审视跨区域的鲑鱼资源——无论是生物学层面的逃逸量数据，还是经济与文化层面的捕捞量数据。据此统计规则，若某条鲑鱼成功逃脱渔业捕捞且被计入所在区域内河流的逃逸统计，或在该区域内的渔业作业中被捕获，则将其纳入对应区域的统计范畴。

针对商业捕捞作业，研究人员依据商业捕捞区相对于区域边界流域的地理位置，将各商业捕捞区划归至对应区域。本数据集未尝试确定商业捕捞鲑鱼的原产地，因此部分区域内捕获的鲑鱼可能原本会在其他区域产卵——这一情况在阿拉斯加半岛与阿留申群岛的商业捕捞区域尤为突出，该区域因大量转运至布里斯托尔湾产卵的鲑鱼而广为人知。

请注意，部分区域在部分年份存在逃逸数据缺失的情况。本数据集包含一份R Markdown文件，可用于处理原始数据并生成可视化图表；同时包含运行该R Markdown文件后生成的HTML文件，其中涵盖多张图表与数据说明，以及若干独立的图表版本。

数据来源如下：
1. Jeanette Clark与阿拉斯加鱼类与野生动物保护局商业渔业部、休闲渔业部、自给渔业部。《1995-2016年阿拉斯加商业、自给、个人使用及休闲垂钓领域的鲑鱼捕捞量》，生物复杂性知识网络（Knowledge Network for Biocomplexity），doi:10.5063/F1TT4P73
2. Andrew Munro与Eric Volk。2018年。《阿拉斯加太平洋鲑鱼逃逸目标汇总及2001-2009年逃逸量回顾》，生物复杂性知识网络，doi:10.5063/F1416VB4
3. Andrew Munro与Eric Volk。2017年。《阿拉斯加太平洋鲑鱼逃逸目标汇总及2007-2015年逃逸量回顾》，生物复杂性知识网络，doi:10.5063/F1GX48V4
4. James Savereide。2017年。《1980-2016年库珀河年度奇努克鲑鱼逃逸量估算》，生物复杂性知识网络，doi:10.5063/F1G15Z4D。