Joan Forsberg

Joan Forsberg

Age Lab Supervisor
Biological & Ecosystems Sciences

206-634-1838x7664

Current IPHC Responsibilities:

  • Oversee annual production age determination activities, ensuring fishery and survey age data are supplied to Stock Assessment group
  • Age determination of Pacific halibut otoliths
  • Oversee and maintain tagging database
  • Provide annual reports on age determination and tagging activities
  • Provide scientific illustrations

Background:

Education:

  • BSc. Biology, University of Victoria

Previous IPHC responsibilities:

  • Supervised  PIT tag scan samplers during the IPHC’s PIT tag recovery program (2003-2009)

Publications:

  • Webster, R. A., Clark, W. G., Leaman, B.M., and Forsberg, J.E. 2013. Pacific halibut on the move: a renewed understanding of adult migration from a coastwide tagging study. Can. J. Fish. Aquat.Sci. 70(4): 642-653
  • Kaimmer, S.M., Geernaert, T.O., and Forsberg, J.E. 2012. Development of deployment and retrieval protocols for Passive Integrated Transponder (PIT) tags: Application to Pacific halibut (Hippoglossus stenolepis). Int. Pac. Halibut Comm. Tech. Rep. 56.
  • Kastelle, C.R., and J.E. Forsberg. 2002. Testing for loss of Rn-222 from Pacific halibut (Hippoglossus stenolepis) otoliths. Fish. Res. 57:93-98.
  • Forsberg, J.E. 2001. Aging manual for Pacific halibut: procedures and methods used by the International Pacific Halibut Commission (IPHC). Int. Pac. Halibut Comm. Tech. Rep. 46.
  • Clark, W.G., Vienneau, B.A., Blood, C.A., and Forsberg, J.E. 2000. A review of IPHC catch sampling for age and size composition from 1935 through 1999, including estimates for the years 1963-1990. Int. Pac. Halibut Comm. Tech. Rep. 42.
  • Hoag, S.H., St-Pierre, G., and Forsberg, J.E. 1997. Bottom area estimates of habitat for Pacific halibut.  Int. Pac. Halibut Comm. Tech. Rep. 36.
  • Gilroy, H.L., Forsberg, J.E., and Clark, W.G. 1995. Changes in commercial catch sampling and age determination procedures for Pacific halibut, 1982 to 1993. Int. Pac. Halibut Comm. Tech. Rep. 32.
  • Forsberg, J.E., and Neal, P.R. 1993. Estimating sex of Pacific halibut (Hippoglossus stenolepis) using Fourier shape analysis of otoliths. Int. Pac. Halibut Comm. Tech. Rep. 29.
  • Nagorsen, D.W., Morrisen, K.F., and Forsberg, J.E. 1989. Winter diet of Vancouver Island marten (Martes americana). Can. J. Zoo. 67:1394-1400.
  • Nagorsen, D.W., Forsberg, J. and Giannico, G.R. 1988. An evaluation of canine radiographs for sexing and aging Pacific coast martens. 1988. Wildl. Soc. Bull. 16:421-426.

Affiliations & Certifications:

  • Certificate program in scientific illustration, University of Washington