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).