Whale shark FAQ's
Are sharks in danger of extinction?
Sharks breed very slowly; some species take more than 20 years to reach breeding size, and then
have only 2 pups every other year. At present we are killing 100 million sharks a year; we are killing
sharks faster than they can reproduce. Some scientists estimate that the rate of depletion may be as
high as 2% per year for certain species. A few years ago it was thought that if the carnage continued,
species which have lasted some 400 million years could vanish within 50 to 100 years. That appears to
be overly optimistic; a recent study conducted by Dalhousie University indicated that from 1986, nearly
all shark species declined at least 50%, with populations of some approaching collapse. Tiger shark
populations plummeted 65%, numbers of while sharks fell 79%, and hammerhead sharks declined 89%.
Aerial studies along the coast of South Africa from 1993 to 2001 documented an 83% decline in whale sharks.
Do sharks need protection?
Yes, floating gill nets, often more than 30 miles [50 km] long, drift through the sea trapping every large
creature in their path including whales, sea turtles and sharks. Longline fisheries catch huge numbers of
sharks, and most are left to rot in the sea. Finning -- cutting the fins off living sharks and then tossing the
mutilated creatures back into the sea to die -- takes a heavy toll. The senseless slaughter continues
because most people don't realize how important sharks are to the health of the oceans -- and to our planet!
Are whale sharks protected anywhere in the world?
In Australia, Honduras, India, the Maldive Islands, the Philippines and along the eastern coast of the
United States whale sharks are protected, and all trade in whale shark products (fins, flesh and skin)
is prohibited. South Africa is considering similar legislation. On November 15, 2002, the whale shark
and basking shark were placed on Appendix II of CITES (Convention on International Trade in
Endangered Species), a United Nations Treaty Organization. Th Appendix II listing requires the
member nations of CITES to monitor international trade in whale shark products and ensure that trade
does not threaten survival of the species. The whale shark is also listed on Appendix II of CMS
(Convention on Migratory Species, also known as the Bonn Convention). However, whale sharks
still fall prey to poachers, particularly in the Philippines and in Mozambique (November 2003).
Why are sharks important?
Sharks are the apex predators in the sea -- they are the top of the ocean food chain.
Apex predators prey upon healthy animals and thus ensure diversity and control populations.
When apex predators are eliminated from any area an ecological imbalance results. Sharks,
as apex predators, maintain the health of the oceans -- 4/5th of the planet's surface -- and an
ecological imbalance in the environment spanning 4/5th of the world could cause real problems
for the other 1/5th.
How can I help save sharks?
It is because of caring people -- like you -- that we are able to gather data that is needed to secure
protection for this species; by joining the Shark Research Institute you are helping to fund basic
and long overdue essential research on the species. You can also support other conservation
organizations that work to protect marine life. Refuse to buy products made from a shark.
For example, avoid restaurants that serve mako shark or shark fin soup, and write to companies
that manufacture shark fin soup and express your disapproval. Check with your local library or
marine research facility for the latest information about the plight of sharks, and keep yourself,
your family and friends informed. Write to your local government officials and ask that sharks be
included whenever protection is considered for other marine life.
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