Sockeye Salmon Brood Tables, Meziadin, British Columbia, 1972-2017

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 sockeye brood tables from Meziadin in the Nass River watershed of northern British Columbia. Archived here are the original "Meziadin (Nass) Sockeye Brood Table_1972-2017_7Mar18.xlsx" from which the data were extracted, an R script "Meziadin_formatting.R" that slightly reformats 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 table as "Meziadin_sockeye.csv". 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).