The Coded-Wire Tag (CWT) database contains the Release, Recovery, Catch/Sample, and Location data. CWT is the Pacific Region’s centralized Oracle database that holds adult salmon escapement data.
Release Data
When a group of fish is released from a hatchery or other release site containing any number of coded wire tagged fish, the group is associated with a unique tag code. Any pertinent information from releasing agencies regarding the release group is submitted to the Regional Mark Processing Center (RMPC) by the responsible state, provincial, or federal agencies.
When groups of fish are released without coded wire tagged fish present, the release group is called an untagged/unassociated group. The release group is assigned a 12-character alpha-numeric identifier. This information is likewise submitted to the RMPC.