Not just Shark
Pictures: Elasmodiver contains photos of sharks, skates, rays, and
chimaera's from around the world. Elasmodiver began as a simple web
based shark field guide to help divers find the best places to
encounter the different species of sharks and rays that live in
shallow water but it has slowly evolved into a much larger project
containing information on all aspects of shark diving and shark
There are now
more than 5000 shark pictures and sections on shark evolution,
biology, and conservation. There is a large library of reviewed
shark books, a constantly updated shark taxonomy page, a monster
list of shark links, and deeper in the site there are numerous
articles and stories about shark encounters. Elasmodiver is now so
difficult to check for updates, that new information and pictures
are listed on an Elasmodiver Updates Page that can be accessed here:
tips of pectorals, second dorsal, and lower caudal fin. All other fins may also
be edged in black or appear dusky. Snout long and pointed. Upper body gray to
light gray with a white streak present from above the pectoral fins
backwards joining the white underbelly half way to the tail. No interdorsal
ridge. First dorsal fin high and pointed.
length 260cm. Size at birth 38-72cm.
Turbid inshore waters, lagoons, reef channels, reef drop offs and
seamounts. To 30m.
and distribution: Circumtropical
consists primarily of fish including small sharks and rays. Also consume
crustaceans and snails and octopus. At Rangiroa the Blacktip passes out of the
lagoon on the ebbing tide to cruise the reef face. More active during daylight
Recorded litter size 1 - 10. Gestation period 11 - 12 months.
In the Caribbean the Blacktip is often confused with the Caribbean reef shark (C.perezi)
which is not as slender and long in front of the eyes and has a less pronounced
white stripe on its flank. Many other Carchhinids around the world are also hard
to distinguish from the blacktip shark. Commonly seen species include the Grey
reef (C.amblyrhynchos) and the Galapagos shark (C.galapagensis).
Fin tip coloration and proportion is the best clue.
Reaction to divers:Varied. Usually shy but during some
encounters the Blacktip shark can become aggressive making close passes and
wide ranging species may be seen in a variety of locations. Drift dives
organized at Rangiroa Lagoon are often well populated with blacktips. The
chumsicle dive at Walkers Cay in the Bahamas is the best location in the
Caribbean to get very close to this shark.
Other diving locations submitted by
Sharks of Tropical and Temperate Seas. - R.H.
Johnson - Pisces Books
Sharks and Rays of the World. Scott W. Michael. Sea Challengers.
and Rays - Elasmobranch Guide of the World. Ralf M. Hennemann. IKAN.