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Scuba Diving Tips: Caribbean Fish Identification : How to Identify Black Jack Fish

Scuba Diving Tips: Caribbean Fish Identification : How to Identify Black Jack Fish


The fish that we are going to identify now
is the Black Jack. Black Jacks are fairly large, pelagic or open ocean dwelling fish
but they can commonly be seen over reefs near deep water drop-offs. Black Jacks are usually
dark gray in color and they have a steeply sloping forehead unlike most other jacks that
are more bullet shaped. Black Jacks also have long anal and dorsal fins. Black Jacks are
not very common in most of the waters around Florida, the Bahamas or the Caribbean, but
can commonly be seen in some locations such as around Providence Isle and the Turks and
Caicos Islands. Black Jacks are carnivores and can be observed rapidly swimming through
schools of Silversides, feeding on the small fish as they dive through the school. Unlike
Horse-Eye Jacks commonly seen in large schools, most Black Jacks that I have seen have been
alone or in small groups of three or four fish. Black Jacks will often swim close by
divers once or twice which some authorities speculate may be due to curiosity about the
diver’s bubbles. Snorkelers will not likely see this fish, since they only frequent reefs
close to deep water drop-offs and don’t venture into the shallows. Black Jackes are generally
one to three feet long. That’s the Black Jack.

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