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Facts about Frogs , Amphibians, Reptiles, Fish & other Animals |
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Cobia |
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Attaining an average length of 2 meters (78 inches) and a weight of 68 kilograms (150 pounds), Cobia have elongate fusiform (spindle shaped) bodies and broad, flattened heads. Their eyes are small and their lower jaw projects slightly past the upper jaw. On the jaws, tongue and roof of the mouth are bands of villiform (fibrous) teeth. Their bodies are smooth with small scales, their dark brown coloration grading to white on the belly with two darker brown horizontal bands on the flanks. These may not be prominent except during spawning when Cobia lighten in color and adopt a more prominently striped pattern. The large pelvic fins are normally carried horizontally (rather than vertically as shown for convenience in the illustration), so that, as seen in the water they may be mistaken for a small shark. When boated, the horizontal pelvic fins enable the Cobia to remain upright so that their vigorous thrashing can make them a hazard. The first dorsal fin is composed of six to nine ,independent, short, stout, and sharp spines. The family name Rachycentridae, from the Greek words rhachis meaning "spine" and kentron meaning "sting," is an allusion to these dorsal spines. Mature cobia have forked, slightly lunate tail fins with most fins being a dark brown. They lack air bladders. Cobia feed primarily on Crabs, squid and other fish. Cobia will follow larger animals such as Sharks, Turtles and Manta Rays in hope of scavenging a meal. Cobia are intensely curious fish and show no fear of boats. Their predators are not well documented, but the dolphin fish (Coryphaena hippurus) is known to feed on immature Cobia. Short fin mako sharks are known to feed on adult Cobia and have been seen by fishermen following Cobia during their annual springtime migration in the northern Gulf of Mexico. |
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FactFrog.com |
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