Fisheries Habitat Ecology

Dr. James Locascio

Dr. James Locascio

Program Manager Fisheries Habitat Ecology and Acoustics

Dr. James Locascio's research background is in passive acoustics and signal processing applied to understand the timing and location of reproductive activity by sound producing fishes. These methods are used to understand the reproductive ecology of fishes and the acoustic ecology of a diverse range of habitats and how the use of these habitats varies naturally and in response to human induced changes on broad time scales. He is also interested in developing new instrumentation for understanding fish spawning and in combining existing technologies for a comprehensive characterization of fish spawning aggregations, spawning ecology, and factors which affect the downstream abundance and distribution of newly recruited fishes.


B.S. Marine Biology, Texas A&M University at Galveston

Ph.D. Marine Science, University of South Florida, College of Marine Science


Koenig1, C. C. , L. S. Bueno, F. C. Coleman, J. A. Cusick, R. D. Ellis, K. Kingon, J. V.  

Locascio, C. Malinowski, D. J. Murie, C. D. Stallings.  2016. Diel, lunar and seasonal spawning patterns of the Atlantic Goliath Grouper, Epinephelus itajara, in Florida, United States. Bull. Mar. Sci. in press

Mann, D., Locascio, J. and Wall, C. 2016. Listening in the Ocean: New discoveries and insights on marine life from autonomous passive acoustic recorders in Au, W.W.L and Lammers, M.O (Eds), Listening in the Ocean (309-324). New York: Springer Science + Business Media

Locascio, James V., and Michael L. Burton. 2016. A passive acoustic survey of fish sound production at Riley’s Hump within Tortugas South Ecological Reserve; implications regarding spawning and habitat use. Fish Bull. 114(1): 103-116.

Locascio, J.V., S. Burghardt, and D.A. Mann. 2012. Quantitative and Temporal Relationships of Egg Production and Sound Production by Black Drum, Pogonias cromis. J. Fish. Biol. 81. 1175-1191.

Schaerer, M.T., Nemeth, M.I., Mann, D.A., Locascio, J.V., Appeldoorn, R.S., and Rowell, T.J.   2012. Sound Production and Reproductive Behavior of Yellowfin Grouper, Mycteroperca Venenosa (Serranidae) at a Spawning Aggregation. Copeia 2012(1): 136-145.

Locascio, J.V. and D.A. Mann. 2011b. Localization and source level estimates of black drum (Pogonias cromis). J. Acoust. Soc. Am. 130(4), 1868-1879.

Locascio, J.V. and D.A. Mann. 2011a. Diel and seasonal timing of black drum sound production.  Fish Bull. 109(3) 327-338.

Mann, D., Locascio, J., Schärer, M., Nemeth, M., and Appeldoorn, R. 2010. Sound production by red hind (Epinephelus guttatus) in spatially segregated spawning aggregations. Aquatic Biology. 10: 149-154.

Mann, D.A., J.V. Locascio, F.C. Coleman, and C.C. Koenig. 2009.  Goliath grouper  (Epinephelus itajara) sound production and movement patterns on aggregation sites. Endang. Species Res.  7(3), 229-236.

Locascio, J.V., and D.A. Mann.  2008. Diel periodicity of fish sound production in Charlotte Harbor, Florida., Trans. Am. Fish. Soc. 137(2), 606-615.

Locascio, J.V., and D.A. Mann.  2005.  Acute effects of Hurricane Charley on fish chorusing. Roy. Soc. Biol. Lett. 1, 362-365.

Adams, A.J., J.V. Locascio, and B.D. Robbins. 2004. Microhabitat use by a post-settlement stage estuarine fish: evidence from relative abundance and predation among habitats. J. Exp. Mar. Biol. Ecol. 299. 17-33.

Rudershausen, P.J., J.V.Locascio, and L.M. Rojas. 2003. A survey of epifauna among macrophytes in a southwest Florida estuary. Fla. Sci. 66(3) 168-183.

Locascio, J.V., P.J. Rudershausen, and M.M. Stein. 2001. An assessment of the ‘leaf pack’ technique for measuring heterotrophic turnover of plant litter applied to the estuarine environment of southwest Florida using Thalassia testudinum and Rhizophora mangle. Fla. Sci. 64(4) 306-319.

Locascio, J.V., and P.J. Rudershausen. 2001. Mercury levels in gafftopsail catfish from Tarpon Bay, Sanibel, Florida, USA Bull. Envrion. Contam. Toxicol. 67(4) 510-518.

Locascio, J.V., and P.J. Rudershausen. 2000. An evaluation of mercury levels in spotted seatrout, Cynoscion nebulosus, in Tarpon Bay, J.N. ‘Ding’ Darling National Wildlife Refuge, Sanibel, Florida, with reference to previous studies. Fla. Sci. 63(1) 256-260.