Not just a
huge collection of
Elasmodiver.com contains images of sharks, skates, rays, and a few
chimaera's from around the world. Elasmodiver began as a simple web
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 photography.
now more than 10,000 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
Long pointed snout. Interdorsal ridge present. Low rounded first dorsal fin
originates behind pectoral axis. Small second dorsal with long free rear tip.
Pectoral fins long with dusky or black tips on underside. Second dorsal much smaller than first.
Dorsal body coloration olive brown with distinctive reflective sheen that gives
this shark its common name.
70 to 87cm at birth.
Prefers offshore islands, sea mounts, drop offs and vertical rocky or coral
reefs. To 500m depth.One of three species (also
including Oceanic Whitetip and Blue Shark) of sharks that patrols the open
and distribution: Circumtropical.
Behavior:Arching back threat display recorded.
Litter size 2 - 14.
Often seen with Scalloped Hammerheads at sea mounts.
Although the silky shark is superficially similar to many other carcharinid
species, it is easily recognizable by its shiny skin and low rounded first
Reaction to divers:
Reactions vary depending on size, location, and
style of interaction. In Galveston, Texas the silky sharks tend to be small and
therefore hard to approach where as at Cocos Island in Costa Rica there are so
many large and aggressive silkies that at times it is not safe to enter the
water as they may bump and possibly bite divers.
logistics: Probably the best place to interact
with Silky Sharks is Cocos Island (Costa Rica) where hundreds of Silkies
aggregate. These sharks are visible on practically every dive and they also hang
around the dive boat at night. The Undersea Hunter runs week long live aboard
trips to Cocos each week from Punta Arenas.
Other diving locations submitted by
Sharks and Rays of the World. Scott W. Michael. Sea Challengers.
and Rays - Elasmobranch Guide of the World. Ralf M. Hennemann. IKAN.
Shark Watcher's Handbook - Mark Carwardine & Ken Watterson. Princeton