Genetics Shines New Light on Cod Populations and Distributions in Alaska

Researchers identify distinctive genetic stocks of Pacific cod in Alaska and use that information to build a cost-effective genetic tool to answer important ecological questions for the species.

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NOAA Fisheries instructor demonstrates how to inspect a shipping container to participants of an International Law Enforcement Academy training course. NOAA Fisheries instructor demonstrates how to inspect a shipping container to participants of an International Law Enforcement Academy training course.
Eugenio Piñeiro Soler, Assistant Administrator of Fisheries, stands in boots on the tidal flats of an oyster farm in Washington. Eugenio Piñeiro Soler, Assistant Administrator of Fisheries, visits an oyster farm in Washington. Credit: NOAA Fisheries.
Two women hold small, slender fish and smile at the camera. The woman on the left wears a blue shirt and has reddish hair and the woman on the left wears an orange flannel shirt and has brown hair. Diane Pitassy (left), collections manager of the Smithsonian Institution National Fish Collection and Dr. Katherine Bemis (right), NOAA Fisheries research zoologist and co-author of the new study. Pitassy holds a new species of barracudina, Stemonosudis dianea, named by Bemis and Dr. Hans Ho to recognize Pitassy’s contributions to the collection. Bemis holds the species of barracudina it was distinguished from, Stemonosudis intermedia. Credit: Dr. Matthew Girard/Smithsonian Institution
Pacific oysters farmed in Washington. Pacific oysters farmed in Washington. Credit: NOAA Fisheries.
A California sea lion mother rests on a sandy beach with her head up, eyes closed, and standing on her flippers, while her pup lies across her belly. Behind her are more sea lions and the water's edge. A California sea lion with her pup on the beach at San Miguel Island. Photo taken under NOAA Fisheries Permit #16087. Credit: NOAA Fisheries