Find more projects

Sevengill Shark Identification Project

Main Project Information
Presented By Ocean
Goal To identify Sevengill sharks which return from year to year.
Task Analyze photos taken using a pattern recognition algorithm
Where False Bay, South Africa, La Jolla Cove, Coast Boulevard, La Jolla, San Diego, San Diego County, California, 92037, United States of America San Diego, 92126 CA 92126 92126

Update: 2-15-16: This database is now accepting photographic documentation from citizen science divers in South Africa-- see link below for more information:

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.

Sevengill Shark Zero Data Project:

Didn’t see any Sevengill sharks on your dive today at La Jolla Cove (or False Bay, Cape Town)? No problem – – we still need your data!

‘Zero data’ is an important concept in long-term population studies in a fixed location with a single species: it’s also called ‘Presence/Absence’ data, meaning, we still want to know when you did *not* see a certain species in a given location, because it tells us a lot about why that particular species may or may not be present at certain times of the year.

The portal can accessed through our main website at

And, it goes without saying, of course, if you *did* see some sevengill sharks, we certainly accept your photographs!

Or go directly to the Zero Data portal here:

How to Join

To log an encounter with a Sevengill shark, go to

Only one photograph is required.

Sevengill Android App Now Available on Amazon:

--Contribute to an ongoing citizen science study of Sevengill sharks

--On-the-go convenience for shark citizen scientists

--Upload shark photos directly from your phone to the Sevengill Shark ID Project database from your Android

Project Timing This is a long-term populations study, spanning at least 5-10 years.
Social Media
Android App URL
Special Skills Scuba diving: basic
Ideal Age Group High school (14 - 17 years), College, Graduate students, Adults
Ideal Frequency Just once
Average Time Less than an hour
Spend the Time outdoors
Type of Activity At the beach, In oceans, streams, rivers, lakes
Training Materials
Media Mentions
and Publications
Tags citizen science, pattern recognition algorithm, sevengill sharks, sharks, wildbook
Project Updated 05/23/2018