Bering Sea Vulnerability Assessment Species Specific Results

Bering Sea Vulnerability Assessment Species Specific Results

NOAA scientists and partners have released a Climate Vulnerability Assessment for groundfish, crabs, and salmon in the Eastern Bering Sea. The study looked at the potential impact of ocean temperatures, and other environmental conditions on 36 groundfish, crab and salmon stocks. Of these, four rockfish stocks, flathead sole and Tanner crab were determined to be the most vulnerable. Several other fish stocks were seen as potentially more resilient based on their ability to move to areas with more favorable environmental conditions, such as more food and optimum water temperatures for growth and survival.

Below are overall results of the assessment (see figure) and information on individual species vulnerability (see icons).  Read the study for more information.

A Sensitivity and exposure matrix for eastern Bering Sea stocks, with certainty scores from bootstrapping shown in parentheses. Vulnerability categories are colored from green (“low”) to red (“very high”).

Sensitivity High and Exposure Low:
Starry flounder (100%)
Chinook salmon (97%)
Alaska plaice (95%)
Chum salmon (92%)
Yellowfin sole (91%)
Pink salmon (91%)
Pacific herring (88%)
Coho salmon (86%)
Snow crab (86%)
Norton Sound red king crab (67%)
Bristol Bay red king crab (52%)
Northern rock sole (52%)
Sockeye salmon (31%)

Sensitivity High and Exposure Moderate:
Shortspine thornyhead (93%)
Pacific ocean perch (87%)
Tanner crab (79%)
Shortraker rockfish (74%)
Rougheye rockfish (73%)
Flathead sole (73%)

Sensitivity Moderate and Exposure Low:
Capelin (99%)
Alaska skate (95%)
Pacific sleeper shark (76%)
Greenland turbot (68%)
Pacific halibut (63%)
Commander skate (59%)
Smoothskin octopus (51%)

Sensitivity Moderate and Exposure Moderate:
Sablefish (81%)
Kamchatka flounder (62%)

Sensitivity Low and Exposure Low:
Magistrate armhook squid (100%)
Arrowtooth flounder (99%)
Eastern Bering Sea pollock (98%)
Eastern Bering Sea Pacific cod (97%)
Plain sculpin (97%)
Giant Pacific octopus (89%)

Sensitivity Low and Exposure Moderate:
Giant grenadier (85%)
Salmon shark (82%)

Sensitivity and exposure for eastern Bering Sea stocks, with certainty scores from bootstrapping shown in parentheses. Vulnerability categories are colored from green (“low”) to red (“very high”)