Sockeye salmon brood tables, Upper Cook Inlet, Alaska, 1968-2016

Brood tables, also called run reconstructions, utilize annual estimates of the total run (commercial catch plus escapement), and samples of ages, to estimate the number of recruits per age class. These data are useful for salmon biologists to understand salmon productivity and salmon life histories. This dataset consists of original brood tables for sockeye salmon from the Kenai and Kasilof Rivers of the Upper Cook Inlet in excel format, R scripts that slightly reformat the dataset into a format consistent with other brood tables collected as part of the State of Alaskan Salmon and People project (https://alaskasalmonandpeople.org/), and the reformatted tables as a .csv file. Age classes are given in European Notation, where the first number is the number of winters spent in freshwater before going to sea (1 winter in freshwater = age-1.X), and the second number is the number of winters spent at sea (3 winters at sea = age-X.3).

亲本表（brood tables，亦称种群重建表（run reconstructions））通过总洄游种群（商业捕捞量与逃逸种群之和）的年度估算值以及年龄样本，估算各年龄组的补充群体数量。此类数据可为鲑鱼生物学家研究鲑鱼生产力与生活史提供关键支撑。本数据集包含来自库克湾上游基奈河与卡西洛夫河的红鲑（sockeye salmon）原始亲本表（Excel格式）、用于将数据集小幅重构为与阿拉斯加鲑鱼与人类项目（https://alaskasalmonandpeople.org/）所收集的其他亲本表格式一致的R语言脚本，以及重构后的逗号分隔值（.csv）格式数据表。年龄组采用欧洲年龄标记法（European Notation）：第一位数字表示洄游入海前在淡水环境中度过的冬季时长（淡水越冬1个冬季对应age-1.X），第二位数字表示在海洋环境中度过的冬季时长（海洋越冬3个冬季对应age-X.3）。