[an error occurred while processing this directive]
Arctic Change NOAA
A near-realtime Arctic Change Indicator website

[an error occurred while processing this directive] HOME
[an error occurred while processing this directive] NEWS
[an error occurred while processing this directive] OVERVIEW
[an error occurred while processing this directive] TABLE OF INDICATORS
CLIMATE
[an error occurred while processing this directive] Arctic Oscillation
[an error occurred while processing this directive] Surface Temps
[an error occurred while processing this directive] Stratospheric Temps
[an error occurred while processing this directive] Clouds
[an error occurred while processing this directive] Ocean
GLOBAL
[an error occurred while processing this directive] Global Temperatures [an error occurred while processing this directive] City Temps
[an error occurred while processing this directive] Ocean Overturning
LAND
[an error occurred while processing this directive] Roads
[an error occurred while processing this directive] Permafrost
[an error occurred while processing this directive] Tundra
[an error occurred while processing this directive] Rivers
[an error occurred while processing this directive] Waterfowl
[an error occurred while processing this directive] Caribou
MARINE ECOSYSTEM
[an error occurred while processing this directive] Overview
[an error occurred while processing this directive] Bering Sea
[an error occurred while processing this directive] Barents Sea
[an error occurred while processing this directive] Greenland
ICE
[an error occurred while processing this directive] Sea Ice
[an error occurred while processing this directive] North Pole
[an error occurred while processing this directive] Glaciers
[an error occurred while processing this directive] Snow Cover
HUMAN
[an error occurred while processing this directive] Socio-economic
[an error occurred while processing this directive] Shishmaref
[an error occurred while processing this directive] Marine Access
[an error occurred while processing this directive] Canadian Marine
[an error occurred while processing this directive] Roads

Marine Ecosystem - Barents Sea

Overview | Bering Sea | Barents Sea | Greenland

See the annually updated Arctic Report Card

The Barents Sea is the continental shelf north of the Scandinavian peninsula. Cod stocks in the Barents Sea are influenced both by fishing and by climate. The production or recruitment of cod (bars in top figure, below), is thought to be related to the flow of warm water into the Barents sea from the North Atlantic Ocean. A recruitment increase occurred in the mid-1970s and 1990s, when there were warm ocean temperatures north of Scandinavia (the Kola Peninsula), shown by the red curve in the middle figure below. Capelin are a food source for cod and whales. Capelin biomass shows large variability over the last twenty-five years. Herring shows changes on decadal scales, reflecting both climate and fishing impacts.

Arctic cod recruitment

Group of Arctic Cod resting in an ice gap. Photo by Gradinger & Bluhm, from University of Alaska Fairbanks

     
Provided by Harald Loeng, Institute of Marine Research, Bergen, Norway    


 
Annual Temperature anomaly (from 1961-1990 mean) for Kola and Station 27. (Kola Section off northwestern Russia, 0-200 m mean) and the Labrador Sea (Station 27 on the western Grand Bank off eastern Canada, near bottom at 175 m). Temperatures are expressed as anomalies, i.e., differences from their 1961-1990 means. Kola data from the Institute of Marine Research, Norway. Station27 data from Fisheries and Oceans, Canada.


 
Trends for stocks of northeast Arctic capelin and Norwegian spring-spawning herring. Data from the International Council for the Exploration of the Sea website. Also see Statistics Norway.

Find more information (references and websites):