Decimation of the Great White Shark - by Esther Jacobs, White Shark Africa (UK)

WESTERN CAPE, SOUTH AFRICA, July 01, 2011 (Press-News.org) Some shark specialists believe they could be wiped out within the next decade. With the alarming decline in their numbers, this might be the last chance for people to see these incredible creatures without having to visit a museum.

Since the Great White Shark was listed on CITES Appendix II* at the 13th meeting of the Conference of Parties of CITES in Bankok, 2004, we have still seen massive drop in their numbers. Through research conducted by White Shark Africa (UK)'s students aboard vessels, we have seen the average number of individual Great White Shark sightings per boat trip drop from 4.56, to 2.75** and another recent study has discovered that only 219 Great White Sharks now exist in the waters off California***.

The World Wildlife Fund (WWF) seem to have made an accurate prediction in September 2004 when they listed the Great White Shark among the ten species of animals and trees it believes will most likely become extinct. Shark finning, trophy hunting, the fishing trade, beach protection nets and ocean pollution all play a part in the decimation of these top level predators. Females do not reach reproductive age until at least 15 years of age, have a low reproductive rate with very small litters, and therefore cannot reproduce at the same rate as their decline.

Despite their ferocious portrayal, the Great White Shark is a sociable character, often gentle and inquisitive, and even playful at times. They contribute massively to our ecosystems and with their deteriorating numbers we will see a direct impact to the entire planet. These top predators keep the marine ecosystems in balance with the prey that they eat and if it is not held in check, the food source for several species of marine life disappears including microorganisms, which are essential for sustaining life.

Mike Ladley, Director of White Shark Africa (UK) has worked with Great White Sharks for over 12 years though his passion stems back over 45 years and is extremely concerned for their survival. "I've seen a dramatic drop in the number of sharks along the Western Cape coastline during my time working with them," says Mike. "If things don't change now, we will be responsible for the destruction of a species, though it may already be too late to change their future. I believe that we will be looking at the world's oceans in 10 years time and it will almost be devoid of life."

Several ways to get involved
• Join one of White Shark Africa (UK)'s 5, 14, 21 or 25 day programmes and learn more about these incredible creatures while viewing them in their natural environment.
• Book a place on a viewing and cage diving trip, helping to ensure that the Great White Shark is worth more alive than dead.
• Write to IUCN (International Union for Conservation of Nature and Natural Resources) to enforce the need for Great Whites to be relisted on their red list as 'critically endangered'. They are currently classified as 'vulnerable'.
• Write to CITES to ask them to propose to move Great White Sharks to Appendix I*.

Ends

Notes for Editors
• Great White Shark photos and videos available upon request.
• Interviewees available:
o Mike Ladley, Director of White Shark Africa (UK).
o Craig Ferreira, pioneer of the early research work on Great White Sharks in South Africa and co-owner of White Shark Africa.
o Christo Kruger, Director of White Shark Africa (Cage Diving company)
o Esther Jacobs, Field Assistant with White Shark Africa (UK).
• * CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) Appendix II includes species not necessarily threatened with extinction, but in which trade must be controlled in order to avoid utilisation incompatible with their survival. Appendix I lists species that are the most endangered.
• ** Research comparison of data from January to June 2010 with January to June 2011 and average number of individual sightings calculated per trip.
• *** Study conducted by Royal Society Biology Letters on Great White Sharks off Central California between 2006 and 2008.
• Since 1876 there have been a total of 249 unprovoked Great White Shark attacks according to the International Shark Attack File (ISAF), administered by the American Elasmobranch Society and the Florida Museum of Natural History.
o The odds of being killed in a shark attack are around 300,000,000/1
o The odds of being killed by a falling coconut are 250,000,000/1
o The odds of being killed by lightening are around 10,000,000/1
o The odds of being killed by escape of radiation from a nearby nuclear plant are around 10,000,000/1

Contact

Name: Esther Jacobs
Tel: +27 (0)79 743 5457
E-mail: esther@whitesharkafrica-uk.com

Name: Mike Ladley
Tel: +27 (0)72 125 9130
E-mail: mike@whitesharkafrica-uk.com

Address: Po Box 2979, Mossel Bay, South Africa 6500
Fax: + 27 (0)86 693 9834

Website: http://www.whitesharkafrica-uk.com