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Dr. J. Marcus Drymon

Research Assistant Professor



My primary research interests are in marine fisheries ecology, including assessments of species’ life history, distributions and trophic ecology in coastal ecosystems. Most of my research has been directed towards increasing the effectiveness of management measures for coastal sharks. My research while at Dauphin Island Sea Lab (DISL) has shown that coastal shark communities in the northern Gulf of Mexico can be disparate across relatively small spatial scales. My current research continues to explore the mechanisms responsible for this disparity, while addressing management issues through a series of fishery-independent surveys, satellite and acoustic telemetry projects and mesocosm experiments.


Scyphers SB, Powers SP, Akins JL, Drymon JM, Martin CW, Schobernd ZH, Schofield PJ, Shipp RL, Theodore TS. Accepted. The role of citizens in detecting and responding to a rapid marine invasion. Conservation Letters.


Powers SP, Hernandez FJ, Condon RH, Drymon JM, Free C. 2013. Novel pathways for injury: direct, sublethal and indirect effects of the Deepwater Horizon explosion on pelagic Sargassum communities. PLoS One 8(9): e74802.

Drymon JM, Carassou L, Powers SP, Grace MA, Dindo J, Dzwonkowski B. 2013. Multi-scale analysis of factors affecting the distribution of sharks throughout the Gulf of Mexico. Fishery Bulletin 111: 370-380.


Powers SP, Fodrie FJ, Scyphers SB, Drymon JM, Shipp RL, Stunz W. 2013. Gulf-wide decreases in the size of large coastal sharks documented by generations of fishermen. Marine and Coastal Fisheries 5(1): 93-102.


Gregalis KC, Schlenker LS, Drymon JM, Mareska J, Powers SP. 2012. Efficacy of vertical longlines to survey reef fish populations in the northern Gulf of Mexico. Transactions of the American Fisheries Society 141: 1453-1464.

Drymon JM, Powers SP, Carmichael RH. 2012. Trophic plasticity in the Atlantic sharpnose shark (Rhizoprionodon terraenovae) in the northern Gulf of Mexico. Environmental Biology of Fishes.

Powers SP, Hightower CL, Drymon JM, Johnson M. 2012. Age composition and distribution of red drum (Sciaenops ocellatus) in offshore waters of the north central Gulf of Mexico: an evaluation of a stock under a federal harvest moratorium. Fishery Bulletin 110: 283-292.

Drymon JM, Powers SP, Dindo J, Dzwonkowski B, Henwood T. 2010. Distribution of sharks across a continental shelf in the northern Gulf of Mexico. Marine and Coastal Fisheries 2: 440-450.





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Last date changed: April 9, 2014 10:34 AM