NOAA Fisheries Presents New Modeling Approach to Evaluate Changing Fish Productivity
NOAA Fisheries scientists say they have developed a new modeling approach to evaluate the changing productivity of fish populations as ocean temperatures continue to warm.
This new approach was used to evaluate productivity for Alaska Pollock and Pacific cod in the Gulf of Alaska. They found that for Alaska Pollock and especially Pacific cod, sea surface temperatures in the Gulf are already less conducive to successful fish development, growth and survival than in recent decades. Fish productivity is determined by estimating how many fish survive from the egg and larvae stages annually to become adults.
According to Mike Litzow, director of the Kodiak laboratory of the Alaska Fisheries Science Center, a critical step in climate change adaptation is the ability to effectively eval...