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

A small (36.5 cm) female walleye pollock Gadus chalcogrammus Pallas, 1814 was caught north of Spitsbergen in 2011. The specimen had a high number of pyloric caeca (n=109), indicating a Pacific origin. The record is the first evidence of a possible input to the small Atlantic population of walleye po...

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Bibliographic Details
Published in:Fauna norvegica
Main Authors: Ingvar Byrkjedal, Gunnar Langhelle
Format: Article in Journal/Newspaper
Language:English
Published: Norwegian University of Science and Technology 2020
Subjects:
Teleostei
distribution
range expansion
Arctic
Zoology
QL1-991
Pacific
Spitsbergen
Online Access:https://doi.org/10.5324/fn.v40i0.3394
https://doaj.org/article/f70f767a8e32443ebefd34cf009b9ba1
Description
Summary:A small (36.5 cm) female walleye pollock Gadus chalcogrammus Pallas, 1814 was caught north of Spitsbergen in 2011. The specimen had a high number of pyloric caeca (n=109), indicating a Pacific origin. The record is the first evidence of a possible input to the small Atlantic population of walleye pollock from the large populations on the Pacific side.

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