|  | 
                 
                  | Scientific 
                      Name:  | Seriola 
                    rivoliana | 
                 
                  | Common 
                      Names:  | Blackjack, 
                    Bar Jack, Amberjack, Almaco, Spanish Jack. | 
                 
                  | Range 
                      & Habitat: | Almaco 
                    jacks are found Gulfwide. They are more oceanic than the greater 
                    amberjack and occur at greater depths. They tend to frequent 
                    reefs, rocks, wrecks and offshore oil and gas platforms. | 
                 
                  | Identification 
                      & Biology: | The body of this fish is less slender than that of the greater 
                    amberjack and in cross-section, the body is less round in 
                    shape. The dorsal and anal fins have noticeably longer lobes 
                    than the greater and lesser amberjacks and the banded rudderfish. 
                    It has the basic amberjack color, except that it is much more 
                    dusky. See Greater Amberjack 
                    for a guide to positive identification. Little is known of 
                    its biology. | 
                 
                  | Size: | Common 
                    at 10-20 pounds and may reach 75 pounds. | 
                 
                  | Food 
                      Value: | Very 
                    good, especially when grilled or broiled. Like other amberjacks, 
                    it may occasionally have infestations of tapeworms encysted 
                    in the muscle near the tail. Although the worms will not harm 
                    people, the infested areas may be cut away and discarded. |