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Photo: Kelli Shaw
Presented by Ocean Sanctuaries.org
Participation fee $0
Expenses $0
Spend the time outdoors
Location anywhere
Appropriate for kids no
Teaching materials no


Required Gear:

--Be a certified SCUBA Diver

--Basic SCUBA gear

--Basic knowledge of the identifying characteristics of the Sevengill shark, ie: seven gill slits, pushed back dorsal fin and elongated caudal fin

--Underwater still or video camera to document encounter--not mandatory

--Safety first, please: NEVER touch a shark or jeopardize your safety to collect data.


Sevengill Shark Tracking in San Diego


To identify sharks which return from year to year.
Analyze photos taken using a pattern recognition algorithm

A citizen science project which allows local divers photo document encounters with Sevengill sharks (Notorynchus cepedianus). The Sevengill Shark Sightings is a portal through which data is entered into the 'Wildbook' pattern recognition algorithm program.

Two pattern recognition algorithms are used to analyze the freckling patterns of each shark to determine which animals are returning each year.




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