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This shot of a Dusky Shark was used by the Humane Society International in a presentation to the Inter-American Tropical Tuna Commission (IATTC), this presentation to be repeated at The UN General Assembly, The International Commission for the Conservation of Atlantic Tunas (ICCAT ), The Western and Central Pacific Fisheries Commission (WCPFC) and other regional fisheries organisations. In September 2011 Lucidifi, a Silicon Valley, California, company, launched an iPhone application Learn Shark featuring this image. In November the same year the U.S. conservation group, WildEarth Guardians also used this photograph as part of a petition to relevant government agencies such as NOAA, to list this shark as Threatened or Endangered under the Endangered Species Act.

It was taken at a depth of about 6 metres in deep open water near Cat Island in The Bahamas on 7th June 2007 while I was on a M/V Shear Water liveaboard trip.

I used my Nikon D200 digital SLR with a 12-24mm Nikkor lens at 12mm focal length on Aperture Priority at F7.1 and two Inon Z-240 strobes on low manual settings. ISO 140, shutter speed 1/125th, Exposure Compensation -0.3 step.