Mote Marine Laboratory and Aquarium - Sarasota, Florida

CENTER FOR SHARK RESEARCH

Harold "Wes" Pratt - Adjunct Research Scientist

 

Publications:

 

Whitney, N M. Pratt, H. L., Jr., Pratt, T.C & J.C. Carrier, 2010. Identifying shark mating behavior using three-dimensional acceleration loggers. Endang Species Res. Preprint 2010 doi: 10.3354/esr00247. Published online Feb. 2, 2010.

Brunnschweiler, J. M. and H. L. Pratt, Jr. 2008, Putative Male – Male Agonistic Behavior in Free-Living Zebra Sharks, Stegostoma fasciatum. The Open Fish Science Journal, 2008, 1,23-27.(PDF)

Whitney, N M. Pratt, H. L., Jr., Pratt, T.C. 2009. Biologging Love: Identifying shark mating behaviors using a three-dimensional acceleration data logger. Poster session. Endangered Species Research meeting. San Diego, CA Feb 27, 2009.

Pratt, H. L., Jr. & J.C. Carrier, 2007. The nurse shark, Ginglymostoma cirratum mating and nursery habitat in the Dry Tortugas, Florida. Pp 225-236 In: McCandless, C. T., N. E. Kohler, and H. L. Pratt, Jr., editors. Shark Nursery Grounds of the Gulf of Mexico and the east coast waters of the United States. American Fisheries Society, Symposium 50, Bethesda, Maryland.

Pratt. H. L. Jr. (advisor and minor subject of). Holland, J. S. Photos by Brian Skerry. 2007 “An Eden for Sharks: Blue waters of the Bahamas”. National Geographic Magazine. Vol. 211 No. 3. March 2007.

Heithaus, M. R. D. Burkholder, R. Hueter, L. Heithaus, H. L. Pratt, Jr. & J. Carrier 2007. Spatial and Temporal variation in shark communities of the lower Florida Keys and evidence for historical population declines. Can. J. Fish. Aquat. Sci. 64: 1302-1313 (2007) p.1302- 1313.

Pratt, H. L. 2007. Living with animals: sharks and humans. p.1176-1181. in: Encyclopedia of Human–Animal relationships. Mark Bekoff,editor. Greenwood Publishing, Westport, CT, USA. 1458 pp.

McCandless, C. T., N. E. Kohler, and H. L. Pratt, Jr., 2007 editors. Shark Nursery Grounds of the Gulf of Mexico and the east coast waters of the United States. American Fisheries Society, Symposium 50, Bethesda, Maryland.

McCandless C. T., H. L. Pratt, Jr., N. E. Kohler, R. R. Merson and C. W. Recksiek. 2007. Distribution, localized abundance, movements and migrations of juvenile sandbar sharks tagged in Delaware Bay pp 45-62. In: McCandless, C. T., N. E. Kohler, and H. L. Pratt, Jr., editors. Shark Nursery Grounds of the Gulf of Mexico and the east coast waters of the United States. American Fisheries Society, Symposium 50, Bethesda, Maryland.

Merson, R. R. & H. L. Pratt, Jr. 2007. Sandbar shark nurseries in New Jersey and New York: Evidence of the northern pupping grounds along the United States east coast. P. 35-43 In: McCandless, C. T., N. E. Kohler, and H. L. Pratt, Jr., editors. Shark Nursery Grounds of the Gulf of Mexico and the east coast waters of the United States. American Fisheries Society, Symposium 50, Bethesda, Maryland.

Pratt, H. L. Jr., and J. C. Carrier. 2005. Elasmobranch Courtship and Mating Behavior, Chapter 5. pp129-169. In: Reproductive Biology and Phylogeny of Chondrichthyes. B.G.M. Jamieson (Ed): Sharks, Skates, Stingrays and Chimaeras. W. C. Hamlett. (Ed.) Science Publishers, Enfield, N.H. & Plymouth, U.K. 562 pp.

Carrier, J. C., H. L. Pratt, Jr. and J. I. Castro. 2004. Reproductive Biology of Elasmobranchs. IN: Biology of Sharks and Their Relatives. J.C. Carrier, J.L. Musick, and M.R. Heithaus (Eds.). CRC Press, LLC. Boca Raton, 596 p.

Whitney, N. M., H. L. Pratt, Jr. and J. C. Carrier, (2004) Group mating behaviour, and siphon sac function in the whitetip reef shark, Triaenodon obesus. Anim Behaviour. Volume 68, Issue 6, December 2004, Pages 1435-1442.

Carrier, J., F. Murru, M. Walsh, and H. L. Pratt, Jr. 2003 Assessing reproductive potential and gestation in nurse sharks (Ginglymostoma cirratum) using ultrasonography and endoscopy: an example of bridging the gap between field research and captive studies, is Chapt. 35 p. 499-504. In: The Elasmobranch Husbandry Manual: Captive Care of Sharks, Rays and their Relatives. M. Smith, D. Warmolts, D. Thoney, and R. Hueter (eds.). Special Publication of the Ohio Biological Survey. No. 16.Columbus, OH. 589 p.

Carrier, J., F. Murru, M. Walsh, and H. L. Pratt, Jr. 2003. Assessing reproductive potential and gestation in nurse sharks (Ginglymostoma cirratum) using ultrasonography and endoscopy: an example of bridging the gap between field research and captive studies. Zoo Biology 22: 179-187.

Campana, S.E., W. Joyce, L. Marks, L.J. Natanson, N.E. Kohler, C.F. Jensen, J.J. Mello, H.L. Pratt, Jr. and S. Myklevoll. 2002. Population Dynamics of the Porbeagle in the Northwest Atlantic Ocean. North American Journal of Fisheries Management 22:106-121.

Joyce, W.N., Campana, S.E., Natanson, L.J., Kohler, N.E., Pratt, H.L. Jr., Jensen, C.F. 2002. Analysis of Stomach Contents of the Porbeagle Shark (Lamna nasus Bonnaterre) in the Northwest Atlantic. ICES Journal of Marine Science. 59:1263-1269.

Jensen, C.F., L.J. Natanson, H.L. Pratt, Jr., N.E. Kohler and S.E. Campana. 2002. The Reproductive Biology of the Porbeagle Shark (Lamna nasus) in the Western North Atlantic Ocean. Fish. Bull. 100(4): 727-738.

Pratt, H. L., Jr. & J. C. Carrier. 2001. A review of elasmobranch reproductive behavior with a case study on the nurse shark, Ginglymostoma cirratum. Env. Biol. Fish. 60:157-188.

Campana, S., W. Joyce, L. Marks, P. Hurley, L. J. Natanson, N. E. Kohler, C. F. Jensen, J. J. Mello, and H. L. Pratt, Jr. 2001. The rise and fall (again) of the porbeagle shark population in the Western North Atlantic. Sharks of the open ocean. Blackwell Scientific.

Merson, R.R., and H. L. Pratt, Jr. 2001. Distribution, movements and growth of young sandbar sharks, Carcharhinus plumbeus, in the nursery grounds of Delaware Bay. Env. Biol. Fishes 61:13-24.

Wetherbee, B.M., E. L. Rechisky, H.L. Pratt Jr., & C.T. McCandless. 2001. Use of ultrasonic telemetry for fishery management: sandbar sharks in Delaware Bay. P. 249-262 In: Electronic tagging and tracking in marine fisheries. Reviews: Methods & Technologies in Fish Biology & Fisheries. Vol. 1. J. Sibert & J. Nielson, eds., Kluwer Academic Press, Dordrecht, The Netherlands.

Mollet, H.F., G. Cliff, H. L. Pratt Jr., and J. D. Stevens. 2000. Reproductive biology of the female shortfin mako, Isurus oxyrinchus Rafinesque, 1810, with comments on the embryonic development of lamnoids. Fishery Bulletin 98:299-318.(PDF)

Carrier, J. C. and H. L. Pratt Jr. 1998. Habitat Management and Closure of a Nurse Shark Breeding and Nursery Grounds. Fisheries Research 39(2): 209-213.

Kohler, N.E., L.J. Natanson, H.L. Pratt Jr., P.A. Turner and R. Briggs. 1999. The Shark Tagger-1998 Annual Summary. 20 p.
http://na.nefsc.noaa.gov/sharks/newsletter/98/1998news.html

Kohler, N.E., L.J. Natanson, H.L. Pratt Jr., R. Briggs and P.A. Turner. 1998. The Shark Tagger-1997 Annual Summary. 20 p.
http://na.nefsc.noaa.gov/sharks/newsletter/97/1997news.html

Merson, R. R. and H. L. Pratt, Jr. 1997. Northern extent of the pupping grounds of the sandbar shark, Carcharhinus plumbeus, on the U.S. east coast. . American Society of Ichthyologists & Herpetologists and American Elasmobranch Society annual meeting, June 26, to July 2, 1997 Seattle, WA. USA. (abstract).

Mollet, H. F., G. Cliff, H. L. Pratt, Jr. and J. D. Stevens, 1997. Reproductive parameters of the shortfin mako, Isurus oxyrinchus. American Society of Ichthyologists & Herpetologists and American Elasmobranch Society annual meeting, June 26, to July 2, 1997 Seattle, WA. USA. (abstract).

Merson, R. R. and H. L. Pratt, Jr. 1996. Pupping and nursery grounds of the sandbar shark, Carcharhinus plumbeus, in Delaware Bay. . American Society of Ichthyologists & Herpetologists and American Elasmobranch Society annual meeting, June 13-19, 1996 New Orleans, LA. USA. (abstract).

Pratt, H. L., Jr. 1996. Reproduction in the male white shark, Carcharodon carcharias. in: Great White Sharks, The biology of Carcharodon carcharias. Klimley, A. P. and D. G. Ainley, eds. Academic Press, 1996 517 pages. proceedings of the Symposium on the Biology of the White Shark, Bodega Marine Lab., Bodega, CA, 4 March 1993.

Pratt, H.L., Jr. and J.C. Carrier. 1995. Wild Mating of the Nurse Sharks. Nat. Geo. Mag., 187(5), pp. 44-53.

Pratt, H.L., Jr. and J.C. Carrier. 1995. "A Savage Kind of Love." (televised version of "Wild Mating of the Nurse Sharks"). Nat. Geo. Explorer Television. June 22, 1995.

Carrier, J. C., H. L. Pratt, Jr. And L. K. Martin. 1994. Group reproductive behavior in free-living nurse sharks Ginglymostoma cirratum. Copeia 1994(3): 646-656.

Pratt, H.L. Jr., and S. Tanaka 1994. Sperm storage in male elasmobranchs: a description and survey. J.Morph.219 (3 )297-304.
http://onlinelibrary.wiley.com/doi/10.1002/jmor.1052190309/abstract

Pratt, H.L., Jr. (1993) The storage of spermatozoa in the oviducal glands of Western North Atlantic sharks. Environ. Biol. Fish.38:139-149.
http://www.springerlink.com/content/j16237h026002325/

Pratt, H.L. Jr., and J.I.Castro 1990. Shark Reproduction: Parental Investment and limited fisheries, an overview. In: Discovering sharks. (S.H. Gruber,ed) Underwater Naturalist, 19 (4) 20 (1) Am. Lit. Soc., Highlands, N.J.

Pratt, H. L., Jr. and T. Otake 1990. Recommendations for work needed to increase our knowledge of reproduction relative to fishery management. In Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries (H. L. Pratt, Jr., S. H. Gruber, and T. Taniuchi,eds.) p.509-510. U.S. Dep. Commer., NOAA Tech. Rep. NMFS 90.

Pratt, H. L., Jr., S.H. Gruber and T. Taniuchi (eds.) 1990. Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries. U.S. Dep. Commer., NOAA Tech. Rep. NMFS 90. 519p.

Pratt, H. L., Jr. and J. G. Casey 1990. Shark reproductive strategies as a limiting factor in directed fisheries, with a review of Holden's method of estimating growth parameters. In: Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries (H. L. Pratt, Jr., S. H. Gruber, and T. Taniuchi, eds.) p.97-109. U.S. Dep. Commer., NOAA Tech. Rep. NMFS 90.

Fogarty, M.J., J.G. Casey, N.E. Kohler, J.S. Idoine and H. L. Pratt Jr. 1989 Reproductive dynamics of elasmobranch populations in response to harvesting. ICES Mini Symposium, Reproductive Variability Paper J.du Conseil

Pratt, H.L., Jr. 1988. Elasmobranch gonad structure: A description and survey. Copeia 1988:719 729.

Benz, G. W. , H. L. Pratt, Jr. and M. L. Adamson. 1987. Larval philometrid nematodes (Philometridae) from the uterus of a sandbar shark, Carcharhinus plumbeus (Nardo, 1827). Proc. Helminthol. Soc. Wash. 54(1) 154-155.

Casey, J. G., H. L. Pratt, Jr., and C. E. Stillwell. l985. Age and growth of the sandbar shark, Carcharhinus plumbeus, from the Western North Atlantic. Can. J. Fish. Aquat. Sci. 42:963 975.

Casey, J.G., and H.L. Pratt, Jr. 1985. Distribution of the white shark, Carcharodon carcharias, in the Western North Atlantic. In Biology of the white shark. (G. Sibley ed.) p.2-14 Mem. of the So. Calif. Acad. Sci. vol. 9.

Casey, J. G., H. L. Pratt Jr., & C. E. Stillwell 1985. Age and growth of the sandbar shark (Carcharhinus plumbeus) from the Western North Atlantic. Can. J. Fish. Aquat. Sci. 42:963-75.

Casey, J.G. and H.L. Pratt, Jr. 1985. Distribution of the white shark, Carcharodon carcharias, in the western North Atlantic. So. Cal. Acad. of Sci. Mem. 9; pp. 2-14

Carey, F. G., J. G. Casey, H. L. Pratt, Jr. D. Urquhart, and J. E. McCosker 1985. Temperature, heat production and heat exchange in the lamnid sharks. Memoirs Southern California Academy of Sciences 9: 92-108.

Pratt, H. L. Jr. & J. G. Casey 1983. Age and growth of the shortfin mako, Isurus oxyrinchus, using four methods. Can. J. Fish. Aquat. Sci. 40:1944-1957.

Pratt, H. L. Jr., J. G. Casey & R. B. Conklin 1982. Observation on large white sharks, Carcharodon carcharias, off Long Island, New York. U. S. Fish. Bull. 80:153-156.

Carey, F. G., J. W. Kanwisher, O. Brazier, G. Gabrielson, J. G. Casey, and H. L. Pratt, Jr. 1982. Temperature and activities of a white shark, Carcharodon carcharias. Copeia 2:254-260.

Pratt, H. L. Jr. 1979. Reproduction in the blue shark, Prionace glauca. U. S. Fish. Bull. 77:445-70.(PDF)

Carey, F. G., Middleton, L., Stillwell, C. E., Pratt, H. L. Jr., Kohler, N., and Cavin, C. (1978). Mako shark experiment on Wieczno, March 1978. National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Center, Woods Hole Laboratory Reference Number 80-7, pp. 1-12.

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Wes and Theo Pratt with a
tagged adult nurse shark