Common dolphinfish (Coryphaena hippurus) habitat suitability maps

Habitat suitability for common dolphinfish is projected to experience modest declines throughout much of the wider Caribbean Sea and very strong declines in areas of currently high habitat suitability in the northern Gulf of Mexico (Figure 15). In both of these regions, declines in more southerly areas are expected to be associated with increases in habitat suitability in more northerly areas. In the Caribbean Sea, habitat suitability is expected to decline most strongly along the northern coastlines of South America while habitat suitability in the central Caribbean between Cuba, Mexico, and Haiti is expected to slightly increase as southerly populations move north. In the Gulf of Mexico, a similar pattern is observed where habitat suitability declines offshore but increases closer to the northern shore of the Gulf. These projections suggest that ongoing development of pelagic fisheries may be a more successful adaptation strategy for Jamaica and Haiti than for nations in the Lesser Antilles. Species-specific projected total habitat suitability index (HSI) and HSI's change or 'anomaly' under different carbon dioxide emission levels, including (A) total HSI for the 1970 to 2000 period; and changes in HSI under scenarios of (B) ~400 ppm and (C) ~565 ppm atmospheric carbon dioxide concentration in the high resolution Earth system model (GFDL CM2.6).

(A) HSI now

Habitat suitability index Legend for the habitat suitability index map

(B) HSI mid-century anomaly

Mid-century anomaly Legend for the mid-century anomaly map

(C) HSI end-century anomaly

End-century anomaly Legend for the end-century anomaly map

Data and Resources

Additional Info

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Type Map
Sector Ecological
Category Fish
Habitat Pelagic
Species group Mahi-mahi
Economic group Pelagic – other than tuna & billfishes
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