Annual salmon hatchery releases from the Hatchery Release Report Form, Alaska, 1952-2017

The data was taken from the Hatchery Release Report on the Alaska Department of Fish and Game website
(https://mtalab.adfg.alaska.gov/CWT/reports/hatcheryrelease.aspx) on 04-04-2018. The data file HR002286.csv includes the annual salmon
hatchery release data from 1952-2017 in Alaska. This dataset includes the total release count from different release agencies throughout
the state. The file lists information about coded wire tag and Alaskan non-coded wire tag groups released since 1968. While there is information about
non-Alaskan coded wire tag groups from the data, it is primarily intended for Alaskan Hatchery production release summaries. This dataset was generated
by selecting all releases (including non-thermally marked), from all release agencies, species, and rearing codes, from the state of Alaska.
The district_region_lut.csv file enables assignment of region for the State of Alaskan Salmon and People (SASAP) project to be assigned based on the
district information. Hatchery_releases.csv is generated from HR002286.csv and district_region_lut.csv by the Rmd, which adds the SASAP region and district
information, converts some codes (such as species codes) to more readable names, and makes some summary plots. Also included in this dataset is an R markdown document
that pulls in data from Alaska Department of Fish and Game, Division of Commercial Fisheries. 2018. Salmon hatchery return data, 1975-2016.
Knowledge Network for Biocomplexity. doi:10.5063/F12805X0, and generates plots showing returns and releases by both region and species. The plots are also included as
standalone objects.