Sockeye and chinook salmon brood tables, Goodnews River, Alaska, 1981-2015.

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 an original brood table for sockeye salmon from the Goodnews River (Middle Fork) in excel format, an R script that slightly reformats this dataset into a format consistent with other brood tables collected as part of the State of Alaskan Salmon and People project, and the reformatted file as a .csv file. Also included is a Alaska Department of Fish and Game report (pdf format), from which the chinook brood table (Goodnews_chinook.csv) was extracted. For the sockeye brood table, 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 se (3 winters at sea = age-X.3). The chinook brood table contains ages given in total age (freshwater age + ocean age + 1).

亲鱼表（brood tables，亦称洄游重建表（run reconstructions））通过总洄游种群的年度估算值（商业捕捞量与洄游留存量之和）以及年龄样本，估算各年龄组的补充个体数量。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重要支撑。本数据集包含一份源自古德纽斯河（中支流）红大马哈鱼（sockeye salmon）的原始亲鱼表（Excel格式）、一段用于将该数据集稍加重构以匹配《阿拉斯加鲑鱼与民众状况》项目所采集的其他亲鱼表格式的R脚本（R script），以及重构后的CSV格式文件。本数据集还包含一份阿拉斯加州鱼类与野生动物部（Alaska Department of Fish and Game）的PDF格式报告，奇努克大马哈鱼（chinook salmon）亲鱼表（Goodnews_chinook.csv）即从中提取而来。红大马哈鱼亲鱼表的年龄组采用欧洲标注法：第一位数字代表入海前在淡水环境中度过的冬季数（淡水越冬1年对应age-1.X），第二位数字代表在海洋中度过的冬季数（海洋越冬3年对应age-X.3）。奇努克大马哈鱼亲鱼表的年龄采用总年龄标注法，即总年龄=淡水越冬时长+海洋越冬时长+1。