Harvest of Salmon across Commercial, Subsistence, Personal Use, and Sport Fish sectors, Alaska, 1995-2016

This data represents harvest of salmon in Alaska across the commercial, subsistence, personal use, and sport fish sectors. Each of these harvest sectors has a distinct permitting system governed by different departments within the Alaska Department of Fish and Game (ADFG). Commercial harvest is regulated under the Commercial Entry Fishery Commission (CFEC), and refers to the harvest of fish for the purposes of selling them to another party. Subsistence harvest is regulated under the ADFG Subsistence Division, and refers to the harvest of fish for customary and traditional use. Whether use of a stock of fish is considered a "customary and traditional" use is determined by several factors, including length and consistency of use, seasonality, methods and means of harvest, geographic areas, means of handling, preparing, preserving, and storing, intergenerational transmission of knowledge and skills, distribution and exchange, and diversity of resources in an area. Personal use harvest is also governed by the ADFG Subsistence Division. The personal use fishery was created in response to the enactment of the state's subsistence priority law, which precluded some individuals from participating in customary and traditional subsistence fisheries because the stocks they fish are not classified as customary and traditional use stocks. Because the gear associated with the personal use fishery is distinct from the gear typically associated with the sport fishery, the personal use fishery was kept distinct from the sport fishery to prevent confusion amongst the public. More information on the personal use fishery can be found in the Alaska state regulations, Chapter 77 "Personal Use Fishery, Article 1” (5 AAC 77.001). Sport fish harvest is regulated under the ADFG Division of Sport Fish, and refers to the taking of or attempting to take for personal consumption, and not for sale or barter, a fish by hook and line either held in the hand or closely attended. These data are derived from four source datasets: Subsistence and Personal Use Harvest - https://knb.ecoinformatics.org/#view/urn:uuid:7e4586c0-9812-4355-8f3b-1445b9a8ca53 Commercial Harvest (CFEC) - https://knb.ecoinformatics.org/#view/urn:uuid:40473bde-9774-4581-aafb-5d2c3b4a70d1 Commercial Harvest(ADFG Annual Management Reports) - https://knb.ecoinformatics.org/#view/urn:uuid:31b421f3-c48c-473a-bc20-601c738b3a3c Sportfish Harvest - https://knb.ecoinformatics.org/#view/urn:uuid:6a6a530f-3660-424f-adab-c771d1c89a5d) The included .Rmd file sources files from these datasets, aggregates over regions to obtain total harvest by species and region, and merges data from all of the sectors into a single file (Harvest_All_Sectors.csv). The .Rmd file also creates basic plots of harvest by sector by region.本数据集收录阿拉斯加地区商业、自给、个人使用及休闲垂钓四类渔业的鲑鱼捕捞数据。上述四类捕捞类别分别由阿拉斯加鱼类与野生动物局（Alaska Department of Fish and Game, ADFG）下属不同部门依据各自的许可体系进行管理。 商业捕捞由商业入境渔业委员会（Commercial Entry Fishery Commission, CFEC）监管，指为向第三方售卖而开展的鱼类捕捞活动。 自给捕捞由阿拉斯加鱼类与野生动物局自给渔业处监管，指基于习俗与传统用途的鱼类捕捞。某鱼类种群的使用是否被认定为“习俗性与传统性使用”，需结合多项因素综合判定，包括使用时长与持续性、捕捞季节性、捕捞方式与手段、作业地理范围、鱼类的处理、制备、保存与存储方式、知识技能的代际传承、资源分配与交换，以及区域内资源的多样性。 个人使用捕捞同样由该局自给渔业处监管。该类渔业的设立旨在响应本州颁布的自给优先法案——此前部分渔民因所捕捞的鱼类种群未被归类为习俗性与传统性使用种群，无法参与传统自给渔业。由于个人使用渔业所用渔具与休闲渔业的典型渔具存在显著差异，为避免公众混淆，该类渔业被单独划定。有关个人使用渔业的详细信息可参阅阿拉斯加州法规第77章《个人使用渔业，第1条》（5 AAC 77.001）。 休闲垂钓捕捞由阿拉斯加鱼类与野生动物局休闲渔业处监管，指通过手持或专人看管的钓钩与鱼线，捕获或试图捕获鱼类用于个人食用，而非售卖或易货的行为。 本数据集的原始数据来自四类公开数据集： - 自给与个人使用捕捞量：https://knb.ecoinformatics.org/#view/urn:uuid:7e4586c0-9812-4355-8f3b-1445b9a8ca53 - 商业捕捞（商业入境渔业委员会版）：https://knb.ecoinformatics.org/#view/urn:uuid:40473bde-9774-4581-aafb-5d2c3b4a70d1 - 商业捕捞（阿拉斯加鱼类与野生动物局年度管理报告版）：https://knb.ecoinformatics.org/#view/urn:uuid:31b421f3-c48c-473a-bc20-601c738b3a3c - 休闲垂钓捕捞量：https://knb.ecoinformatics.org/#view/urn:uuid:6a6a530f-3660-424f-adab-c771d1c89a5d 附带的.Rmd脚本将调用上述原始数据集，按区域聚合得到各物种、各区域的总捕捞量，并将四类捕捞类别的数据合并为单个文件（Harvest_All_Sectors.csv）。该脚本还将生成按区域、按捕捞类别划分的捕捞量基础可视化图表。