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Why do you think males and females migrate separately?
It is possible that females avoid large clusters of males until they are ready to mate. Mating in sharks, and elasmobranchs in general, can be energetically costly for the female due to the large a...
How many indviduals are found in an aggregation?
Male blacktip sharks (the black dots in the picture above) in Southeast Florida can be found in aggregations as large as 800 shark per square kilometer during the winter. If you are...
Public Outreach
Today, I gave a presentation at Manatee Lagoon in West Palm Beach, FL. It is always encouraging to share the results I have found with new people. The enthusiasm and curiosity of th...
It's not easy being a girl...
Bryan Frazier has already detected one of the pregnant females I instrumented in St. Helena Sound, SC. I was concerned about hearing back from this o...
The First of Many
At the beginning of June, I instrumented four female blacktip sharks in St. Helena Sound, SC. Luckily, I was able to use four transmitters that were left over from last fishing seas...
Blacktip Shark Aggregation
Blacktip sharks form large aggregations in nearshore waters off Southeast Florida each winter. These sharks come very close to shore and spend several months in the warm water befo...
