In the popular media, sharks have traditionally
been portrayed as vicious killers. Motion pictures, such as JAWS,
news media coverage of shark attacks and many documentaries still
perpetuate this image by sensationalizing attacks and disproportionately
portraying sharks engaged in feeding or aggressive behaviors.
According to a survey conducted in 2003 by the National Aquarium
in Baltimore , Maryland , seventy percent of Americans surveyed
recently believe that sharks are dangerous. 72 percent also believe
that shark populations are just adequate or too high.
Shark attacks are disproportionately sensationalized
and sharks are vilified feeding the public’s unrealistic
image of sharks. According to the International Shark Attack
Files (ISAF) it is 15 times more likely to be struck by lightning
than to be bit by a shark, and 89 times more likely to die of
being struck by lightning than dying from a shark bite. These
figures demonstrate that the public perception of sharks is largely
due to a lack of education and a distorted image fed to the public
by mainstream media. The lack of knowledge about sharks perpetuates
the continued over-exploitation and depletion of these species.
The Problem with Fishing Juveniles
By Dr. Peter Klimley
Many of us would like the population of hammerhead
shark in the Gulf of California to be restored to it previous
level. If this is not possible, it is important to return the
population to a sustainable level - remaining constant from year
to year.
The first symptom of a collapsing fishery is
the rarity of older fish in the catches of fishermen - the fishing
pressure has become so intense and effective that few fish escape
early capture and survive to an old age.
Faced with the scarcity of adults, fishing camps
along the shores of the Gulf of California have begun catching
large numbers of juveniles in their gill nets. This practice
will simply worsen the plight of the species, and soon there
will be few juvenile hammerhead sharks as well in the gulf. As
the fishing camps profit marginally from the capture of a few
juvenile hammerheads, the recreational diving industry operating
out of La Paz , the largest city in Southern Baja , has been
impacted greatly by the rarity of adult hammerheads in the local
waters.
Dr. Peter Klimley, Ph.D. (Pete) is an adjunct
associate professor at the biometry lab in the Department of
Wildlife, Fish and Conservation Biology at UC DAVIS and a scientific
advisor to IEMANYA OCEANICA.
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