FB54 was born in 1971, and is currently the oldest-known Sarasota resident dolphin. She has been observed more than 1,500 times since we first met her in August 1975 — the second highest number of sightings for any dolphin in our catalog.
This female has given birth to eight calves, the most recent in 2012 when she was 41, and this calf has remained with her into 2020. As can be seen in the sighting map, her ranging patterns have remained very stable over the nearly five decades we have known her. She uses the entire community range, but the northern portion is her core area.
Thanks to our monthly photographic identification monitoring program (supported through the Charles and Margery Barancik Foundation), we know that one of her calves, born in 2000 and nicknamed Tricia, has given birth to three of her grand-calves.
Based on paternity analyses by Dr. Debbie Duffield, of Portland State University, we know that her son, Jocko, born in 1996, sired one grand-calf.
These ongoing studies conducted by members of the SDRP team and its partners have allowed us to learn a great deal about the community of dolphins that call Sarasota Bay home.