Deutsche Seiten  
 Home  Preservation  Information  Foundation *  Projects  Exhibit  Database  Galleries  Links  Shark Info 
 Identification   * Basking Sharks   Behavior   Nurseries   Fiji   Migrations   Publications   Terminated Projects  Sitemap  Sitemap 

The Foundation supports projects both financially and in an advisory function. For purposes of controlling results and ensuring quality it requests yearly project reports. Whenever necessary, Shark Foundation projects are examined by the Foundation's > scientific advisory committee which is composed of highly qualified shark researchers and scientists.

We need your help in order to carry out the various projects. You can support individual projects directly by noting the respective donation code on the > deposit slip or > bank transfer.

 Analyzing the Distribution of Basking Sharks

Donation code: Basking Sharks

Although basking sharks (Cetorhinus maximus) feed exclusively on plankton, they can grow to more than ten meters in length and over five tons in weight.
In the spring, the friendly giants migrate in pursuit of blooming plankton, heading to the waters around England and Scotland. Basking sharks are highly endangered and are thus strongly protected in these waters and worldwide.

Basking Sharks
© Colin Speedie / Shark Foundation
Illustration: Basking sharks (Cetorhinus maximus) frequently wander through the ocean with their jaws wide open in order to filter plankton from the water.

The project investigates the influence of fishing nets, injuries caused by ships (these giants frequently swim on the water surface and are thus prone to such injuries) and other behavioral and reproductive disturbances of basking sharks. This research will form the basis for establishing recommendations to protect basking sharks in British waters.

Most project work is performed by volunteers, preferably local people in order to foster awareness of local shark protection.

This research is being carried out in the following areas:
  • Cornwall
  • Devon
  • Wales
  • Irish Sea
  • Firth of Clyde
  • Hebrides

In May/June 2009 a basic scoping study will be run to evaluate further remote sites in the southern part of the Outer Hebrides and sites that historical records suggest were important basking shark hunting grounds. We badly need to know whether those sites hold a similar conservation value for the basking shark, like the sites we have already identified, and the only way to prove that would be through further line transect survey work.

The Shark Foundation will support this study with CHF 5,000.
 Photographic Identification of Basking sharks


Studying the behavior of individual basking sharks over several years means that some individuals must be clearly identifiable. Sharks can thus either be tagged, or a photo database can be set up in which exterior characteristics are clearly displayed. The project team decided on the photo database since it would cause a minimum disturbance to the sharks.

Basking shark fin     Basking shark fin
© Colin Speedie / Shark Foundation
Illustration: Clear identification characteristics on the dorsal fin of basking sharks.

Construction of the photo database is in progress. In 2004 the Shark Foundation provided the project team with a Canon digital camera with 11 megapixel resolution valued at CHF 14,000. Photographing takes place during the plankton blooming season from May to October. In 2004 data was collected between Devon and Cornwall, Whales, Northwest England, Northern Ireland and Western Scotland.
Colin Speedie used the "Forever Changes" research ship, an 11.7 meter sailing vessel. Using a sailboat instead of a motorboat considerably minimizes any disturbances to the sharks. Unfortunately, research had to be discontinued in the 2008 season because the "Forever Changes," had to be scrapped due to serious rudder damage.
In 2009 research will continue on a new ship, the "Pelerin" (French word for basking shark).

© Colin Speedie / Shark Foundation
Illustration: The new research ship "Pelerin" at anchor.

Project leader: Colin Speedie

Since 2002 the Foundation assumes the maintenance costs for the research ship. Additionally, in 2003 the Foundation bought a laptop computer for the data-analysis on board, in 2004 an 11 megapixel Canon digital camera. This camera's high resolution greatly improves the photographic identification of the basking sharks, even at large distances.

Investments to date: CHF 43,000.

 ^  Top |  Home  Preservation  Information  Foundation *  Projects  Exhibit  Database  Galleries  Links  Shark Info 
© 2021 - 2021 Shark Foundation / Hai-Stiftung Last updated: 16/06/04 20:14 / Webmaster