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Potential Changes In Sockeye Salmon Distribution From A Doubling of the CO₂ level

Comparison of the predicted winter (7 degrees C) and summer (12 degrees C) positions of the sockeye salmon distribution under current and future climates (Albers equal area projection). Under a doubling of atmospheric CO₂ the area of acceptable thermal habitat in the North Pacific is predicted to decline sharply. The predictions are based on the Canadian Climate Centre's coupled ocean-atmosphere general climate model (Boer et al. 1992; McFarlane et al. 1992).

Potential Changes In Sockeye Salmon Distribution From A Doubling of the CO2 level

SOURCE: D.W. Welch, Y. Ishida, and K. Nagasawa. In Press. Thermal Limits and Ocean Migrations of Sockeye Salmon (Oncorhynchus nerka): Long-Term Consequences of Global Warming. Can. J. Fish. Aquat. Sci. -- http://www.cru.uea.ac.uk/link/hadcm2/abstracts/Welch_fig.html