Alaska Longline Survey Research Brief 2023
April 29, 2023
This is a flyer that describes the annual Alaska longline survey for sablefish and other groundfish.
The overall research objective is to conduct a fisheries-independent survey of groundfish resources throughout Alaskan waters. The Alaska Longline Survey is specifically designed to provide a relative population index for assessing sablefish, or black cod, but its data is also useful for
several other groundfish species. The survey occurs in habitats that are not well sampled by trawl surveys due to the deep depths and rough bottoms where the gear is deployed.