Not just Shark Pictures:
Elasmodiver contains photos of sharks, skates, rays, and chimaera's
from around the world. It began as a simple web based field guide to
help divers find the best places to encounter different species of
sharks and rays but it has slowly evolved into a much larger project
containing information on all aspects of shark diving and
photography. There are now more than a thousand shark pictures
and sections on shark evolution, biology, and conservation. There is
a large library of reviewed shark books, a constantly outdated shark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:
If you're
looking for a broader range of marine life pictures the following
links represent a new area that contains pictures on other marine
organisms and on marine habitats. This expansion of Elasmodiver is
in its first stages but will eventually include pages on everything
from sea stars to nudibranches. Creating this portal will take time
and for now it consists of a token offering of fish pictures. Please
return regularly to enjoy the progress.
Shark fin soup was once a
delicacy reserved for special occasions but a 2006 study conducted by
Fisheries Scientist Shelley Clarke indicates that up to 73 million sharks are
now being killed annually to supply the fin trade. This is three times higher
than the official catch statistics reported to the FAO because it includes new
data taken from illegal shark fin traders who do not report their catches.
The
soup’s increasing popularity is linked to the continuing growth of the Chinese
economy. Now that more people can afford to buy shark fin soup, the demand has
sent the price of fins sky rocketing. This has led to an increase in shark
finning activity that is putting stress on shark populations all over the
world.
The act of shark finning is extremely barbaric. As the
sharks are dragged onto the boat their prized fins are sliced off. To avoid
losing precious cargo space, the valueless carcasses are then tossed back into
the sea where, unable to swim, they sink to the seabed and drown. This
wasteful practice has been outlawed in many countries including the USA but
policing the shark fishing industry is very difficult and illegal shark
finning fleets continue to drive shark stocks towards extinction.
The problem is that sharks grow very slowly. Some
species can take more than 20 years to reach sexual maturity which means that
they run a high risk of being caught before they are able to produce the next
generation. Sharks also have very few offspring. Unlike bony fishes that
release millions of eggs each year, sharks incubate their young internally and
only give birth to between 1 and 50 pups depending on the species. Of these,
only a few will survive the first year. As the ocean’s apex predators this
reproductive strategy serves them well. Their low birth rate ensures that they
will not overrun their food supply but unfortunately it also means that they
are unable to respond to increased fishing pressure.
A recent study in the Gulf of Mexico found that the
Oceanic Whitetip Shark population has been reduced by a staggering 99 percent
and researchers speculate that many other shark species are in a similar
position.
To combat rampant shark finning the IUCN Shark
Specialist Group has proposed a limit on the fin to body weight ratio of
landed sharks. This discourages shark fishermen from discarding carcasses at
sea but it does not specifically limit the number of sharks that they may
land. It is a band aid solution that has slowed down some shark finners but it
has driven others underground.
While monitoring the shark fishing industry is
important, educating consumers is just as critical. Sharks are vanishing from
our oceans at an alarming rate and the outlook is not an attractive one.
Without sharks, the incidence of disease among fish species will increase.
Some marine populations will explode leading to crashes among others and the
eventual breakdown of the entire marine ecosystem. A high price to pay for a
bowl of soup.