Genetic Analysis Results for Pacific Cod Samples Taken from Norton Sound in 2017
Alaska Fisheries Science Center's Dr. Ingrid Spies to share the results of her genetic analysis of samples of Pacific cod taken from Norton Sound during the 2017 Northern Bering Sea bottom trawl survey to monitor groundfish/crab and other bottom dwelling species.
Please join Dr. Ingrid Spies for an AFSC Seminar to hear the results of her recent genetic study on Pacific cod samples taken from Norton Sound in 2017.
The seminar will be held on:
Wednesday, August 22, 2018
10:00 am to 11:00 am PT
at the Alaska Fisheries Science Center Seattle offices
in Building 4 of NOAA’s Western Regional Center
7600 Sand Point Way NE, Seattle, WA 98115
Changing environmental conditions have been observed in the Northern Bering Sea region in recent years, including significant differences between fish species caught in NOAA Fisheries surveys during 2010 and 2017.Significant differences in the Pacific cod distribution were observed from 2010 to 2017 in the Northern Bering Sea, a 907% increase. Concurrently, the 2017 estimate for Pacific cod in the Eastern Bering Sea declined by 37% from estimates in 2016. Hypotheses for these changes included northward movement of Pacific cod, population expansion of existing Northern Bering Sea populations, or movement from other regions, such as the Gulf of Alaska (which also experienced a decline in 2017) or Russia. We tested these hypotheses by comparing the genetic composition (using Restriction-site Associated DNA sequencing) of a sample from Norton Sound in 2017 with that of spawning populations throughout the Bering Sea and an existing baseline from other spawning populations throughout Alaska waters.
To join the seminar remotely:
Conference Line: 888-456-5038
Participate code: 8480290
Event: 996 928 096