Guest post by Mike Bear
The San Diego-based non-profit Ocean Sanctuaries was founded in 2014 to create and provide support for marine citizen science projects. The Sevengill Shark Identification Project was one of its first citizen science projects, begun in 2010 in response to anecdotal evidence that divers were seeing increasing numbers Sevengill sharks off the coast of San Diego. This made the species an ideal candidate for a long-term 5-10 year) population study.
The Sevengill sha