David Hankin, Professor Emeritus

Dr. David Hankin

Contact Information

Email: David.Hankin@humboldt.edu
Phone: 707-826-3447
Office: WFB - BLDG 11, Rm 216


  • B.A. Biology, 1971, Reed College
  • Ph.D. Fishery Science, (Biometrics and Public Policy Minors), 1978, Cornell University

Courses Taught at HSU

  • FISH 450 Introduction to Fish Population Dynamics
  • BIOM 406/506 Sampling Theory

Current Research Interests

  • Genetic consequences of harvest policies and hatchery practices for chinook salmon
  • Possible decline in the half-pounder life history among Trinity River hatchery steelhead
  • Survey designs for estimating fish abundance in small streams
  • Assessment of hybrization in streams holding cutthroat trout and steelhead

Recent HSU MS Theses

  • Peterson, Matt. 2011. Possible decline in the half-pounder life history among trinity River Steelhead (Oncorhynchus mykiss).

  • Fuller, Joshua. 2011. Extended residency and movement behavior of juvenile Steelhead (Oncorhynchus mykiss) in the Russian river estuary, California.

  • Chen, Yaming. 2007. Long-term effects of alternative hatchery mating practices and size selective fishing on age and sex composition of Chinook salmon populations returning to hatcheries.

  • Ainsworth, Justin. 2006. An evaluation of the use of mating marks as an indicator of mating success in male Dungeness crabs.

Selected Publications

Dungeness Crabs
  • Oh, S., and D.G. Hankin. 2004. The sperm plug is a reliable indicator of mating success in female Dungeness crabs, Cancer magister.  J. Crustacean Biology 24: 314-326.

  • Hankin, D.G., T.H. Butler, Wild, P.W., and Q-L. Xue. 1997. Does intense fishing on males impair mating success of female Dungeness crabs? Can. J. Fish. Aquat. Sci. 54:655-669

  • Hankin, D.G., N. Diamond, M.S. Mohr, and J. Ianelli. 1989. Growth and reproductive dynamics of adult female Dungeness crabs, Cancer magister, in northern California. J. Cons. int. Explor. Mer. 46: 94-108.

  • Mohr, M.S., and D.G. Hankin. 1989. Estimation of size-specific molting probabilities in adult decapod crustaceans based on postmolt indicator data. Can. J. Fish. Aquat. Sci. 46:1819-1830.

Stream Surveys
  • Webster, R.A., K. H. Pollock, S. K. Ghosh, and D G. Hankin. 2008. Bayesian spatial modeling of data from unit-count surveys of fish in streams. Trans. Am. Fish. Soc. 137:438–453.

  • Hankin, D.G., and M.S. Mohr. 2008. Estimating the Proportions of Closely Related Species: Performance of the Two-Phase Ratio Estimator. J. Agric. Biol. Environ. Statistics. 14:15-32.

  • Dolloff, C.A., D.G. Hankin, and G.H. Reeves. 1993. Basinwide estimation of habitat and fish populations in streams. U.S. Forest Service, General Technical Report SE-83.25pp.

  • Hankin, D.G., and G.H. Reeves. 1988. Estimating total fish abundance and total habitat area in small streams based on visual estimation methods. Can. J. Fish. Aquat. Sci. 45:834-844.

  • Hankin, D.G. 1984. Multistage sampling designs in fisheries research: applications in small streams. Can. J. Fish. Aquat. Sci. 41:1575-1591.
Chinook Salmon
  • Hankin, D.G., J. Fitzgibbons, and Y. Chen. 2009. Unnatural random mating policies select for younger age at maturity in hatchery Chinook salmon populations. Can. J. Fish. Aquat. Sci. 66: 1505-1521.

  • Kinziger, A.P., E. J. Loudenslager, D.G. Hankin, E.C. Anderson, and JC, Garza. 2008. Hybridization between spring-run and fall-run Chinook salmon returning to Trinity River, California. N. Am. J. Fish. Manage. 28: 1426-1438.

  • Hankin, D.G. (Chair), J.H. Clark, R.B. Deriso, J.C. Garza, G.S. Morishima, B.F. Riddell, and C. Schwarz. 2005. Report of the expert panel on the future of the coded wire tag recovery program for Pacific salmon. Pacific Salmon Commission Technical Report No. 18. 230 pp.

  • Hankin, D.G., J.W. Nicholas and T.W. Downey. 1993. Evidence for inheritance of age of maturity in chinook salmon, Onchorhynchus tshawytscha. Can. J. fish. Aquat. Sci. 50:347-358.

  • Nicholas, J., and D.G. Hankin. 1988. Chinook salmon populations in Oregon's coastal river basins: Description of life histories and assessment of recent trends in run strength. Oregon Dept. of Fish and Wildlife, Informational Report 88-1. 359 pp.

  • Hankin, D.G., and M.C. Healey. 1986. Dependence of exploitation rates for maximum yield and stock collapse on age and sex structure of chinook salmon stocks. Can. J. Fish. Aquat. Sci. 43: 1746-1759.

  • Hankin, D.G. 1982. Estimation escapement of Pacific salmon: marking practices to discriminate wild and hatchery fish. Trans. Am. fish. Soc. 111:286-298.

  • Hankin, D.G., and M.S. Mohr. 2009. Estimating the Proportions of Closely Related Species: Performance of the Two-Phase Ratio Estimator. J. Agric. Biol. Environ. Statistics 14: 15-32.

  • Brakensiek, K., and D.G. Hankin. 2007. Estimating overwinter survival of juvenile coho salmon in a Northern California stream: accounting for effects of PIT-tagging mortality and size-dependent survival. Trans. Am. Fish. Soc. 136:1423-1437

  • Baumsteiger, J., D.G. Hankin, and E. Loudenslager. 2005. Genetic analyses of juvenile steelhead, coastal cutthroat trout, and their hybrids differ substantially from field identifications. Trans. Am. Fish. Soc. 134:829-840.

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