Predicted distribution of federally managed fish in the Gulf of Mexico and South Atlantic from 2003-01-01 to 2017-12-31 (NCEI Accession 0226141)

Raster data are derived from species distribution models, which are based on statistical species-habitat relationships (Guisan and Zimmermann 2000; Robinson et al. 2011). For Gulf of Mexico species, these data represent either probability of occurrence (pink shrimp Farfantepenaeus duorarum, red snapper Lutjanus campechanus age-1, lane snapper Lutjanus synagris age-0, lane snapper age-1, spinner shark Carcharhinus brevipinna, blacktip shark Carcharhinus limbatus) or relative abundance (brown shrimp Farfantepenaeus aztecus, white shrimp Litopenaeus setiferus, red snapper age-0, Atlantic sharpnose shark Rhizoprionodon terraenovae) given a standardized survey. For South Atlantic species, these data represent probability of occurrence for red snapper (adults), black sea bass Centropristis striata (juvenile and adults), blacknose shark Carcharhinus acronotus, sandbar shark Carcharhinus plumbeus, and tiger shark Galeocerdo cuvier given a standardized survey. Shark predictions of relative abundance are in units of individuals per 100 hooks per hour of bottom longline survey. Shrimp and red snapper age-0 relative abundance predictions are in units of individuals per kilometer of trawl survey. Shark distributions are representative of spring, summer, and fall seasons combined. Other species are depicted in either summer, fall, or summer and fall seasons combined. Further details are available in Pickens and Taylor (2020).