From 2003 to 2012, he helped lead research off the coast of the Yucatán Peninsula that found the largest aggregation of whale sharks ever discovered.
From 1997 to 2021, he served on the Atlantic Highly Migratory Species Advisory Panel for the National Oceanic and Atmospheric Administration.
His current work with OCEARCH is focused on multidisciplinary studies of the white shark in the Northwest Atlantic.
[8] He received the Eugenie Clark Scientific Explorers Award from Mote Marine Laboratory in 2008.
He was president of the American Elasmobranch Society in 1993 and served on the AES Board of Directors for more than a decade.