Bradley G. Stevens, Ph.D.

  •  
    Professor 
    Department of Natural Sciences 
    Email:  bgstevens@umes.edu
    Phone: (410) 651-6066

    Education:

    • Ph.D. in Fisheries Science, University of Washington, Seattle, WA.
    • M.S. in Marine Biology, College of Charleston, Charleston, SC.
    • B.S in Biology, University of Cincinnati, Cincinnati, OH.


    Research:

    • Fisheries Ecology
    • In-situ Technology
    • Fishing Impacts
    • Deep Sea Research
    • Marine Invertebrate Reproduction

    Publications:

    • Miller, A.S, S. X. Cadrin, and B. G. Stevens.  2013.  Effects of shell disease on egg quality of the American lobster.  Journal of Crustacean Biology, 33(4): 461-469.

    • Peemoeller, B-J., and B. G. Stevens. 2013.  Age, Size, and Sexual Maturity of Channeled Whelk (Busycotypus canaliculatus) in Buzzards, Bay, MA.  Fishery Bulletin, 111: 265-278.

    • Stevens, B. G.  2012. Feeding rate of juvenile red king crabs, Paralithodes camtschaticus, in the laboratory: Effects of temperature, size, molting, and feeding frequency. Polar Biology 35:1791-1799. DOI 10.1007/s00300-012-1221-4.

    • Stevens, B. G. 2012. Growth of juvenile red king crabs, Paralithodes camtschaticus, through sequential molts in the laboratory. Journal of Crustacean Biology 32(2):215-222.  DOI: 10.1163/ 193724011X615460.

    • Bethoney, D., B. G. Stevens, K. Stokesbury, and M. Altabet. 2011.  The impact of bait on the susceptibility of American lobsters (Homarus americanus) to epizootic shell disease investigated using nitrogen isotope ratios. Diseases of Aquatic Organisms 95:1-8.

    • Stevens, B. G. In press.  The Rise and Fall of Kings: Do Climate-Mediated changes in hatch timing control the abundance of red king crabs?  Climate change and crab Fisheries. pp 1-10. University of Alaska Sea Grant Program. Anchorage, AK.

    • Romero, M. C., F. Tapella, C. L. Buck, and B. G. Stevens. 2010. Effects of reproductive stage and temperature on rates of oxygen consumption in Paralithodes platypus (Crustacea: Decapoda: Anomura) J. Crust. Biol. 30(3):393-400.

    • Stevens, B. G. 2009.  Effects of epizootic shell disease on American lobsters, Homarus americanus determined using a quantitative disease index. Diseases of Aquatic Organisms 88:25-34.

    • Stevens, B. G. 2009. Hardening of red king crab shells after molting. Journal of Crustacean Biology 29:157-160.

    • Tapella, F., M. C. Romero, B. G. Stevens, and L. Buck. 2009. Substrate preferences and redistribution of blue king crab Paralithodes platypus glaucothoe and first crab on natural substrates in the laboratory. Journal of Experimental Marine Biology and Ecology 372:31-35.

    • Stevens, B. G., K. M. Swiney, and C. L. Buck. 2008. Thermal effects on embryo development and hatching for blue king crab Paralithodes platypus held in the laboratory, and a method for predicting dates of hatching.  Journal of Shellfish Research 27:1255-1263.

    • Stevens, B. G., S. Persselin, and J. Matweyou. 2008. Survival of blue king crab larvae, Paralithodes platypus, in cultivation: Effects of diet, temperature, and density. Aquaculture Research 39: 390-397.

    • Stevens, B. G. and K. M. Swiney. 2007. Growth of female red king crabs Paralithodes camtshaticus during pubertal, primiparous, and multiparous molts. Alaska Fisheries Research Bulletin 12(2): 263-270.

    • Stevens, B. G., and K. Swiney. 2007. Hatch timing, incubation period, and reproductive cycle for primiparous and multiparous red king crab Paralithodes camtschaticus (Tilesius, 1815). Journal of Crustacean Biology 27(1): 37-48.

    • Stevens, B. G. 2006. Timing and duration of larval hatching for blue king crab Paralithodes platypus  Brandt, 1850 held in the laboratory. Journal of Crustacean Biology 26(4): 495-502.

    • Stevens, B. G.  2006. Embryonic development and morphometry in the blue king crab, Paralithodes platypus, studied by image and cluster analysis. Journal of Shellfish Research 25(2):569-576.

    • Payne, S. A., J. A. Haaga, and B. G. Stevens. 2006. Observations on the reproductive biology of the hairy crab Hapalogaster mertensii, on Kodiak Island, Alaska. Journal of Shellfish Research. 25:761.

    • Stevens, B. G., and K. M. Swiney.  2005. Post-settlement effects of habitat type and predator size on cannibalism of glaucothoe and juveniles of red king crab Paralithodes camtschaticus. J. Exp. Mar. Biol. Ecol. 321(1):1-11.

    • Hoff, G. R., and B. Stevens. 2005. Faunal assemblage structure on the Patton Seamount (Gulf of Alaska, USA). Alaska Fish. Res. Bull. 11:27-36.

    • Stevens, B. G., J. E. Munk, and P. E. Cummiskey. 2004. Utilization of log piling structures as artificial habitats for red king crabs, Paralithodes camtschaticus. J. Shellfish Res. 23(1):221-226.

    • Stevens, B. G. 2003. Timing of aggregation and larval release by Tanner crabs, Chionoecetes bairdi, in relation to tidal current patterns. Fisheries Research. 65:201-216.

    • Stevens, B. G. 2003. Settlement, substrate preference, and survival of red king crab Paralithodes camtschaticus (Tilesius, 1815) glaucothoe on natural substrates in the laboratory. J. Exp. Mar. Biol. Ecol. 283:63-78.

    • Loher, T., D. A. Armstrong, and B. G. Stevens. 2001. Growth of juvenile red king crab (Paralithodes camtschaticus) in Bristol Bay (Alaska) elucidated from field sampling and analysis of trawl-survey data. Fish. Bull. 99:572-587.

    • Stevens, B. G., and P. J. Anderson. 2000. An association between the anemone, Cribrinopsis fernaldi, and shrimps of the families Hippolytidae and Pandalidae. J. Northw. Atl. Fish. Sci. 27:77-82.

    • Stevens, B. G., I. Vining, S. Byersdorfer, and W. E. Donaldson. 2000.  Ghost fishing of Tanner crabs (Chionoecetes bairdi) at Kodiak Alaska: Pot density and catch per trap as determined by sonar, submersible, and pot recovery.  Fish Bull.  98:389-399.

    • Stevens, B. G., J. Haaga, and W. E. Donaldson.  2000.  Mound formation by Tanner crabs (Chionoecetes bairdi): Tidal phasing of larval launch pads?  Crustacean Issues 12:445-456.Stevens, B. G., and J. Kittaka. 1998.  Postlarval settling behavior, substrate preference, and time to metamorphosis for the red king crab (Paralithodes camtschaticus).  Mar. Ecol. Prog. Ser. 167:197-206.

    • Tracey, G. A., E. Saade, B. Stevens, P. Selvitelli, and J. Scott. 1998. Laser line scan survey of crab habitats in Alaskan waters. Journal of Shellfish Research 17:1483-1486.

    • Himelbloom, B. H., and B. G. Stevens. 1994. Microbial analysis of a fish waste dump site in Alaska. Bioresource Technology. 47:229-233.

    • Stevens, B. G., J. A. Haaga, and W. E. Donaldson.  1994.  Aggregative mating of Tanner crabs Chionoecetes bairdi.  Can. J. Fish. Aquat. Sci. 51:1273-1280.

    • Stevens, B. G., W.E. Donaldson, J. A. Haaga, and J. E. Munk. 1993. Morphometry and maturity of male Tanner crabs, Chionoecetes bairdi, grasping pubescent and multiparous females in shallow and deepwater environments.  Can. J. Fisheries and Aquat. Sciences 50:1504-1516.

    • Stevens, B. G., W.E. Donaldson, and J. A. Haaga.  1992.  First report of podding behavior in the Pacific lyre crab, Hyas lyratus.  J. Crustacean Biology 12(2):193-195.

    • Stevens, B. G. 1990a.  Survival of king and Tanner crabs captured by commercial sole trawls.  Fishery Bulletin 88:731-744.

    • Stevens, B. G.  1990b.  Temperature-dependent growth of juvenile red king crab Paralithodes camtschatica, and it's effects on size-at-age and subsequent recruitment in the eastern Bering Sea.  Can. J. Fish. Aquat. Sci. 47(7):1307-1317.

    • Armetta, T., and B. Stevens. 1987.  Aspects of the biology of the Hair crab, Erimacrus isenbeckii, in the eastern Bering Sea.  Fish. Bull. 85(3):523-545.

    • Stevens, B., and D. Armstrong. 1984a.  Diel activity of an estuarine population of Dungeness crabs, Cancer magister, in relation to feeding and environmental factors.  J. Crust. Biol. 4(3): 390-403.

    • Stevens, B., and D. Armstrong. 1984b.  Distribution, abundance, and population size of Dungeness crab, Cancer magister, in Grays Harbor, Washington.  Fish. Bull 82(3): 469-483.

    • Stevens, B. 1982.  Distribution, abundance, and feeding habits of Dungeness crab, Cancer magister, in Grays Harbor, Washington.  PhD. Dissertation, Univ. of Washington.  213 pp.

    • Stevens, B., D. Armstrong, and R. Cusimano.  1982.  Feeding habits of the Dungeness crab, Cancer magister, in Grays Harbor, Washington, as indicated by the Index of Relative Importance.  Mar. Biol. 72(2): 135-146.

    • Stevens, B., and D. Armstrong.  1981.  Mass mortality of female Dungeness crab, Cancer magister, on the southern Washington coast.  Fish. Bull. 79(2): 349-352.

    Books and Proceedings Edited:

    • B. G. Stevens, Editor.  2006. Alaskan Crab Stock Enhancement and Rehabilitation.  Proceedings of a workshop held at Kodiak College, Kodiak, AK, March 2006. University of Alaska Sea Grant. Rep. No. AK-SG-06-04. 89 pp.

    • B. G. Stevens, Editor.  2014. King crabs of the World: Biology and Fisheries Management. Taylor and Francis/CRC Press, Miami.  608 pp.

    Book Chapters

    • Munk, J. E., B. G. Stevens, and P. A. Cummiskey. 2001. A Year in the Life of a Piling: Recruitment of King Crabs and Other Fauna to Dock Pilings. pp 63-64. In, S. C. Jewett (ed.), Cold Water Diving for Science. University of Alaska Sea Grant, P.O. Box 755040 205 O'Neill Bldg. Fairbanks AK 99775-5040 USA, 63-64 pp.

    • B. G. Stevens.  2014. King crabs of the World: Species and Distributions.  Chapter 1, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.  

    • B. G. Stevens.  2014. Embryo development and hatching of king crabs.  Chapter 7, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.  

    • B. G. Stevens.  2014.  Development and Biology of King Crab Larvae. Chapter 8, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.  

    • B. G. Stevens.  2014.  Biology and Ecology of Juvenile king crabs. Chapter 9, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.  

    • B. G. Stevens and Stephen C. Jewett.  2014.  Growth, Molting, and Feeding of King Crabs. Chapter 11, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.  

    • B. G. Stevens.  2014.  Impacts of fishing on king crabs: Bycatch, injuries, and mortality. Chapter 12, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.

    • B. G. Stevens, A. Dunham, J. Kittaka, N. Kovatcheva, S. Persselin, and G. van der Meeren.    2014.  Aquaculture and stock enhancement of king crabs. Chapter 13, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis.  

    • B. G. Stevens.  2014.  The Future of King Crabs. Chapter 19, in B. G. Stevens (ed.), King Crabs of the World: Biology and Fisheries Management. Taylor and Francis. 

    Conference Proceedings (Peer-reviewed):

    • Kittaka, J., B. G. Stevens, S. Teshima, and M. Ishikawa. 2002. Larval culture of the king crabs Paralithodes camtschaticus and P. brevipes. InCrabs in cold water regions: Biology, Management, and Economics. Anchorage, AK. 2002. Alaska Sea Grant Program. Rep. No. AK-SG-02-01, p. 189-209.

    • Stevens, B. G. 2002. Molting of red king crab, Paralithodes camtschaticus, observed by time-lapse video in the laboratory. InCrabs in Cold water regions: biology, management, and economics. Anchorage, AK. University of Alaska Sea Grant. Rep. No. AK-SG-02-01, p. 29-37.

    • Stevens, B. G. 2002. Survival of Tanner crabs tagged with Floy tags. InCrabs in Cold water regions: biology, management, and economics. Anchorage, AK. University of Alaska Sea Grant. Rep. No. AK-SG-02-01, p. 551-559.

    • Stevens, B. G. 2002. Checklist of Alaskan Crabs. InCrabs in Cold water regions: biology, management, and economics. Anchorage, AK. University of Alaska Sea Grant. Rep. No. AK-SG-02-01, p. 5-8.

    • Stevens, B.G. 1996. Crab Bycatch in Pot Fisheries. Pp151-158 in Solving Bycatch: Considerations for today and tomorrow. Alaska Sea Grant Program Report No. 96-03, University of Alaska Fairbanks.

    • Stevens, B. G., J. Haaga, W. E. Donaldson, and S. A. Payne. 1996. Reproductive conditions of prespawning female Tanner crabs, Chionoecetes bairdi, in Chiniak and Womens Bays, Kodiak, Alaska. Pp 349-354 in High Latitude crabs: Biology, management, and economics. Alaska Sea Grant Program Report No. 96-02, University of Alaska Fairbanks.

    • MacIntosh, R. A., B. G. Stevens, J. A. Haaga, and B. A. Johnson.  1996. Effects of handling and discarding on mortality of Tanner crabs, Chionoecetes bairdi.  Pp577-590 in High Latitude crabs: Biology, management, and economics. Alaska Sea Grant Program Report No. 96-02, University of Alaska Fairbanks.

    • Laufer, H., J. Ahl, P. Takac, G. Scott, and B. G. Stevens. 1996. Hormones and reproductive strategies in spider crabs with emphasis on commercially important species. InB. Baxter (ed.) High Latitude Crabs: Biology, Management and Economics. Anchorage, Alaska. Alaska Sea Grant College Program. Rep. No. AK-SG-96-02, p. 383-388.

    • Stevens, B. G., and J. E. Munk.  1990.  A temperature-dependent model for growth of juvenile red king crab Paralithodes camtschatica, in Kodiak, Alaska. pp. 293-304 in B. Melteff (ed), Proceedings of the International Symposium on king and Tanner crabs, November 28-30, 1989, Anchorage, Alaska, USA.  Alaska Sea Grant College Program Report No. 90-04, Univ. of Alaska, Fairbanks, AK.

    • Stevens, B., and D. A. Armstrong.  1985.  Ecology, growth, and population dynamics of juvenile Dungeness crab, Cancer magister Dana, in Grays Harbor, WA, 1980-1981.  Pages 118-134 in Proceedings of the Symposium on Dungeness crab Biology and Management, Anchorage Alaska, Oct. 9-11, 1984.  Univ. of Alaska Sea Grant Publications, Fairbanks, AK, 99701.

    Conference Proceedings (Not peer-reviewed):

    • Bethoney, N. D., K. Stokesbury, B. G. Stevens, and M. Altabet. 2011. The impact of bait on the susceptibility of American lobsters (Homarus americanus) to shell disease investigated using nitrogen isotope ratios. Journal of Shellfish Research [J. Shellfish Res.] 30:486.

    • Peemoeller, B.-J., and B. G. Stevens. 2011. Improving conservation of New England whelks Busycotypus canaliculatus: Size at maturity. Journal of Shellfish Research 30:542.

    • Hall, V.A., B.G. Stevens, R.S. Kennedy, P.B. Boyce and M.J. Massaus 2008.  Correlation of gonad color and fullness with gonad index in the bay scallop, Argopecten irradians.  Journal of Shellfish Research 27(4): 953 

    • Hall, V.A., B.G. Stevens, P.B. Boyce and R.S. Kennedy 2009.  Nantucket’s nub controversy: can shell morphometry be used to determine age and legality of fall-spawned bay scallops in the commercial fishery?  Journal of Shellfish Research 28(3):701.

    • Stevens, B. G. 2006. Is it possible to enhance king crab populations in Alaska? pp 79-89. in B. G. Stevens, Ed. Alaskan Crab Stock Enhancement and Rehabilitation Workshop, Kodiak, AK, University of Alaska Sea Grant. Rep. No. AK-SG-06-04.

    • Stevens, B. G. 2006. King Crab Cultivation and Stock Enhancement in Japan and the United States: A brief history. pp 23-32. in B. G. Stevens, Ed. Alaskan Crab Stock Enhancement Workshop, Kodiak, AK, University of Alaska Sea Grant. Rep. No. AK-SG-06-04.

    Technical Reports:

    • Stevens, B. G., J. E. Munk, and P. E. Cummiskey. 2002. A study on the utility of log piling structures as artificial habitats for red king crabs and other fauna. AFSC Processed Report. No. 2002-03. National Marine Fisheries Service. Kodiak Fisheries Research Center, 301 Research Ct., Kodiak, AK  99615. 44 p.

    • Vining, I., S. Byersdorfer, W. Donaldson, B. Stevens, and G. Edwards. 1995. Lost crab and cod pot recovery and ghost fishing in Chiniak Bay and other areas in the waters around Kodiak Island, Alaska. Regional Information Report. No. 4K97-42. Alaska Dept. of Fish and Game. 211 Mission Rd., Kodiak, Alaska 99615. 93 pp.

    • Stevens, B. G., J. A. Haaga, and W. E. Donaldson. 1993. Underwater observations on behavior of king crabs escaping from crab pots.  Processed Report 93-06, NMFS/NOAA, Northwest and Alaska Fisheries Center, 7600 Sand Point Way NE, Seattle, WA, 98115.

    • Stevens, B. G., and J. A. Haaga. 1992. Impacts of fish processing waste dumping in Chiniak Bay, Kodiak Island, Alaska. Final Report for NOAA Undersea Research Program. No. NMFS, NOAA, Alaska Fisheries Science Center. Kodiak, AK. 50 pp.

    • Stevens, B. G., J. A. Haaga, R. A. MacIntosh, R. S. Otto, and L. Rugolo. 2001. Report to Industry on the 2001 Eastern Bering Sea Crab Survey. AFSC Processed Reports. No. 2001-07. Alaska Fishery Science Center, National Marine Fisheries Service. Kodiak Fishery Research Center, 301 Research Ct. Kodiak, AK  99615  USA. 62 p.

    • Stevens, B. G., J. Haaga, and R. A. MacIntosh, and R. S. Otto.  2000.  Report to Industry on the 1998 eastern Bering Sea Crab Survey.  Processed Report 2000-01, NMFS/NOAA, Alaska Fisheries Science Center, 7600 Sand Point Way, Seatlle, WA  98115.  59 pp.
      --------. 1998.  Report to Industry ..... Processed Report 98-07, NMFS/NOAA, AFSC. 52 pp.

    • Stevens, B. G., J. Haaga, and R. A. MacIntosh.  1997.  Report to Industry ....  Processed Report 98-02, NMFS/NOAA, Alaska Fisheries Science Center.  52 pp.
      ---------. 1995.  Report to Industry... Processed Report 94-07, NMFS/NOAA, AFSC. 
      ---------. 1993.  Report to Industry... Processed Report 93-14, NMFS/NOAA, AFSC. 
      --------. 1992.  Report to Industry ..... Processed Report 92-12, NMFS/NOAA, AFSC.

    • Stevens, B. G., and R. A. MacIntosh.  1991.  Report to Industry ....Processed Report 91-17, NMFS/NOAA, Alaska Fisheries Center (AFSC). --------.  1990.  Report to Industry....Processed Report 90-09, NMFS/NOAA, NWAFC. 50 pp. --------.  1989.  Report to Industry....Processed Report 89-18, NMFS/NOAA, NWAFC. 47 pp.
      --------.  1988.  Report to Industry ... Processed Report 88-23, NMFS/NOAA, NWAFC.
      --------.  1987.  Report to Industry ... Processed Report 87-18, NMFS/NOAA, NWAFC.
      --------.  1986.  Report to Industry ... Processed Report 86-17, NMFS/NOAA, NWAFC.
      --------.  1985.  Report to Industry ... Processed Report 85-20, NMFS/NOAA, NWAFC.

    • Stevens, B. G., and R. A. MacIntosh.  1985.  Analysis of crab data from the 1985 NMFS survey of the Northeast Bering Sea and Norton Sound.  Processed Report 86-16, NMFS/NOAA, Northwest and Alaska Fisheries Center, 7600 Sand Point Way NE, Seattle, WA, 98115.

    • Armstrong, D., B. Stevens, and J. Hoeman, 1982.  Distribution and abundance of Dungeness crab, Cancer magister and Crangon shrimp, and dredging-related mortality of invertebrates and fish in Grays Harbor, Washington. Final Report to U.S. Army Corps of Engineers and Washington Department of Fisheries, Seattle, WA. 349 pp.

    • Stevens, B. 1981.  Dredging-related mortality of Dungeness crab, Cancer magister, associated with four dredges operating in Grays Harbor, Washington.  Final Report to U.S. Army Corps of Engineers and Washington Department of Fisheries, Seattle, WA. 148 pp.

    Popular Literature:

    • Stevens, B. 1997.  The mystery of crab mountains.  Ocean Realm, Winter 1997/98. Pp 41-43.
    • Stevens, B.  1984.  A Research Cruise in the Aleutian Islands.  Oceans 17(6): 20-23.
    • Stevens, B. 1983.  Saving crabs from dredges.  Sea Frontiers 29(1): 45-50.

    Professional Experience:

    • Professor, Environmental Science & Distinguished Research Scientist, University of Maryland Eastern Shore. 2009 – till date.
    • Associate Professor, School for Marine Science and Technology,Department of Fisheries Oceanography, University of Massachusetts, Dartmouth, 2006 – 2009.
    • Acting Director, Kodiak Fisheries Research Center, AK, Jan – April 2006.
    • Affiliate Professor, University of Alaska., Fairbanks, 2000 – 2008.
    • Visiting Scientist, Tokyo Science University, Nemuro Marine Laboratory, Hokkaido, Japan, 1996.
    • Research Fishery Biologist, Kodiak , AK , 1984 – 2006.
    • Adjunct Faculty, Kodiak College, University of Alaska,1984 - 2006
    • Research Assistant Professor, Old Dominion University, Norfolk, VA, 1983.
    • Fishery Biologist, University of WashingtonSeattle, 1982.
    • Fishery Biologist II, Washington Department of Fisheries, Westport, WA, 1978 – 1980.

    Professional Affiliations:

    • American Fisheries Society
    • The Crustacean Society
    • National Shellfisheries Association
    • Coastal and Estuarine Research Federation

    Course List:

    • 2009- present: Coordinator for LMRCSC Monthly Seminar Series
    • Spring 2014: MEES 608N Current Topics in Fisheries  (Seminar class) 
    • Fall 2013:  MEES 688  Survey Sampling
    • Spring 2013: MEES 608N Fisheries Policy and Management (Seminar class)
    • Fall 2012:  MEES 688  Survey Sampling
    • Spring 2012: MEES 608N Fisheries Policy and Management (Seminar class)
    • Fall 2011:  ENV 499: Undergraduate Research
    • Fall 2011:  MEES 688  Survey Sampling
    • Spring 2011: MEES 608N Marine Invertebrate Fisheries (Seminar class) 
    • Fall 2010:  MEES 688  Survey Sampling
    • Spring 2010: MEES 608N Fisheries Policy and Management (Seminar class) 

    Extension/Outreach Projects:

    • Associate Editor, Journal of Crustacean Biology (2010-present)
    • Distinguished Research Scientist, Living Marine Resources Cooperative Science Center
    • Fisheries and aquaculture research symposia coordinator
    • Crustacean Research Symposium co-coordinator, National Shellfisheries Association Meeting, March 2014
    • Crustacean Stock Enhancement Symposium coordinator, National Shellfisheries Association Meeting, March 2010