Joth Davis, PhD
Founder, Chief Executive Officer


University of Washington, Seattle         Fisheries Sciences                Ph.D, 1994
Yale University                                          Environmental Studies         M.S.1982

Colby College                                            Environmental Studies         B.A.1976

Work Experience
Senior Scientist, Puget Sound Restoration Fund, 590 Madison Ave. N., Bainbridge Island, WA 1994-present
Senior Scientist, Taylor Shellfish Company, Inc., 701 Broad Spit Road, Quilcene, WA 98376, 1996-2016
Affiliate Professor, University of Washington, College of the Environment, School of Aquatic & Fishery Sciences, Seattle, WA, 2002-present
President, Baywater Shellfish Farms, 10610 NE Manitou Park Blvd., Bainbridge, WA 1990-present

CEO, Pacific Hybreed, Inc., 10610 NE Manitou Park Blvd., Bainbridge, WA 2015-present

        i.  Five Most Relevant
  • Matson, S. E., J. P.Davis, and K. K. Chew, 2003. Laboratory hybridization of the mussels, Mytilus trossulus and M. galloprov ncialis: Larval growth, survival and early development. J. Shellfish Research, 22: 423-430.
  • Brake, J. W., J. Davidson, and J. Davis. 2004. Field observations on growth, gametogenesis and sex ratio of triploid and diploid Mytilus edulis. Aquaculture 236:179-191.
  • Vadopalas, B., and J.P. Davis, 2004. Optimal chemical triploid induction in geoduck clams, Panopea abrupta, by 6-dimethylaminopurine. Aquaculture 230: 29-40.
  • Dewey, W., J. P. Davis, and D. C. Cheney. 2011. Shellfish aquaculture and the environment: an industry perspective. In: Shellfish Aquaculture and the Environment (S. E. Shumway, ed.), John Wiley & Sons, Chichester, pp. 33-50.
  • Vadopalas, B., Davis, J. P., and Friedman, C. S. 2015. Maturation, spawning, and fecundity of the farmed Pacific geoduck Panopea generosa in Puget Sound, Washington. Journal of Shellfish Research 34:31-37.
     ii.  Five Additional
  • Hedgecock, D. and J.P. Davis. 2007. Heterosis for yield and crossbreeding of the Pacific oysters Crassostrea gigas. Aquaculture 272, Supplement 1: S17–S29.
  • Camara M. D., J. P. Davis, M. Sekino, D. Hedgecock, Gang Li, C. J. Langdon, and S. Evans. 2008. The Kumamoto Oyster Crassostrea sikamea is neither rare nor threatened by hybridization in the northern Ariake Sea, Japan. Journal of Shellfish Research 27:313-322.
  • Ghiselli, F., L. Milani, P. L. Chang, D. Hedgecock, J. P. Davis, S. V. Nuzhdin, and M. Passamonti. 2012.  De novo assembly of the Manila clam Ruditapes philippinarum transcriptome provides new insights into expression bias, mitochondrial doubly uniparental inheritance and sex determination. Molecular Biology and Evolution 29: 771-786.
  • McDonald, P. S., T. E. Essington, J. P. Davis, A. W. E. Galloway, B. C. Stevick, G. C. Jensen, G. R. Vanblaricom, and D. A. Armstrong. 2015. Distribution, abundance, and habitat associations of a large bivalve (Panopea generosa) in a eutrophic fjord estuary. Journal of Shellfish Research 34:137-145.
  • Straus, K. M., B. Vadopalas, J. P. Davis, C. S. Friedman. 2015. Reduced genetic variation and decreased effective number of breeders in five year-classes of cultured geoducks (Panopea generosa). Journal of Shellfish Research 34:163-169.

Synergistic Activities

  • Marine Resources Committee, Jefferson County, WA; Committee Member (appointed 2004- 2010)
  • Western Regional Aquaculture Center; Research Sub-Committee, 2002-2004.
  • National Shellfisheries Association; Member, 1986 to present; NSA Industry Committee Chair; 1996 to 2000; NSA Industry Committee Co-Chair; 2001; NSA Secretary, 2003-04; NSA Member at Large, 2004-2007; NSA President-Elect, 2007-2009; NSA President, 2009-2011; NSA Past President, 2011-2013.
  • Between 1997-2005, Davis taught courses in aquaculture at the University of Washington to undergraduates in Fisheries Sciences and consulted internationally on projects relates to induced triploidy in bivalve molluscs.
  • Working with NOAA and the Puget Sound Restoration Fund, Davis serves as Science Advisor to the Kenneth K. Chew Center for Shellfish Research and Restoration, a state of the art shellfish restoration hatchery and laboratory in Manchester, WA. Completed in 2014, the laboratory houses PSRF restoration activities for oysters and abalone, as well as collaborative research projects with the University of Washington on seaweed culture and multi-trophic integrated aquaculture.
  • In 2014 Davis, initiated work through the PSRF with Vulcan Philanthropy to establish a pilot-scale seaweed cultivation array. The project is assessing whether growing seaweeds can induce positive net changes in carbonate chemistry while providing habitat and a local sanctuary for sensitive marine organisms against effects associated with ocean acidification and associated changes in the carbonate chemistry of seawater.
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