Walleye pollock Gadus chalcogrammus Pallas, 1814 found north of Spitsbergen indicates a Pacific-Atlantic connection in the species

Ingvar Byrkjedal, Gunnar Langhelle
2020 Fauna Norvegica  
A small (36.5 cm) female walleye pollock Gadus chalcogrammus Pallas, 1814 was caught north of Spitsbergen in2011. The specimen had a high number of pyloric caeca (n=109), indicating a Pacific origin. The record is the firstevidence of a possible input to the small Atlantic population of walleye pollock from the large populations on thePacific side.
doi:10.5324/fn.v40i0.3394 fatcat:sicn5jqyovd55jya6brrqryjdm