Erik H. Williams

mailto:erik.williams@noaa.gov
 

Fisheries Research Biologist
National Marine Fisheries Service
Southwest Fisheries Science Center
Santa Cruz\Tiburon Laboratory
3150 Paradise Drive
Tiburon, California 94920
Tel: (415) 435-3149 ext. 227
Fax: (415) 435-3675
 
 
 

Research Interests:

• Population Dynamics  -  Population modeling, ecosystem modeling, assessment methods, fisheries oceanography
• Fisheries Management  -  Harvest policy, fishery spatial dynamics, fishing gear engineering, bycatch reduction
• Statistics \ Biometrics  -  Sampling design, Bayesian methods, re-sampling strategies, multivariate \ pattern recognition methods

Education:

• Ph.D., 1999, Fisheries Biometrics
  • University of Alaska Fairbanks, School of Fisheries and Ocean Sciences, Juneau Center, Juneau, Alaska.
• M.S., 1995, Fisheries Science
  • University of Rhode Island, Department of Fisheries, Aquaculture and Veterinary Science, Kingston, Rhode Island.
• B.S., 1991, Natural Resource Conservation
  • University of Florida, School of Forest Resources and Conservation, Gainesville, Florida.

  Go Gators

Recent Projects:

• Analysis of the effects of unreported discards on population estimates and mamagement reference points.
• Exploratory data analysis of the Alaska Fisheries Science Center triennial trawl survey data for rockfish south of 43^o latitude.
• 1999 stock assessments for southern canary rockfish (zipped Word document, 36Kb) and southern lingcod.
• Development of a length-based, age-structured fisheries stock assessment model using the AD Model Builder software.  See the southern canary assessment document for a description of the model and application.  For ADMB users, here are the canary rockfish, 35Kb and lingcod, 19Kb examples (zipped files contain ADMB *.tpl and *.dat files)
• Research into the interrelationships of Pacific herring populations and their environment.

Selected Publications:

Williams, E. H., and T. J. Quinn, II. In review.  Pacific herring, Clupea pallasi, recruitment: relations to environmental variables and forecasting models. Fisheries Oceanography.

Williams, E. H., and T. J. Quinn, II. In review.  An exploratory analysis of Pacific herring, Clupea pallasi, population interrelationships in the Bering Sea and Northeast Pacific Ocean. Fisheries Oceanography.

Williams, E. H., S. Ralston, A. D. MacCall, D. Woodbury, and D. E. Pearson.  1999.  Stock assessment of the canary rockfish resource in the waters off southern Oregon and California in 1999. In Pacific Fishery Management Council. 1999. Appendix: Status of the Pacific Coast groundfish fishery through 1999 and recommended acceptable biological catches for 2000: stock assessment and fishery evaluation. Portland, OR.

Williams, E. H.  1999.  Interrelationships of Pacific herring, Clupea pallasi, populations and their relation to large-scale environmental and oceanographic variables. Ph.D. Thesis, School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Juneau, Alaska, 166 p. (zipped Word document, 896Kb)

Williams, E. H. and T. J. Quinn, II.  1998. A parametric bootstrap of catch-age compositions using the Dirichlet distribution, p. 371-384. In: Funk, F., T.J. Quinn, II, J. Heifetz, J.N. Ianelli, J.E. Powers, J.F. Schweigert, P.J. Sullivan, and C.-I. Zhang (eds.), Fishery stock assessment models, Proceedings of the International Symposium on Fishery Stock Assessment Models for the 21st Century, Anchorage, Alaska, 1037 p.

Williams, E. H. and T. J. Quinn, II.  1998. Age-structured analysis of Pacific herring from Norton Sound, Alaska. Alaska Fishery Research Bulletin 4(2):87-109.

Williams, E. H. and J. DeAlteris.  1996.  Reduction of Cetacean bycatch in the swordfish drift net fishery using acoustic devices. In: Proceedings of the East Coast Bycatch Conference. 1996. eds. Castro et al., Rhode Island Sea Grant, Narragansett, RI, 160 p.

Williams, E. H. 1995.  Survival of fish captured by hook and released. M.S. Thesis, Department of Fisheries, Animal, and Veterinary Sciences, University of Rhode Island, Kingston, RI, 126 p.

Links:

Fisheries Related

American Fisheries Society
National Marine Fisheries Service
California Department of Fish and Game
Oregon Department of Fish and Wildlife
Washington Department of Fish and Wildlife
Alaska Department of Fish and Game
International Pacific Halibut Commission
Pacific Fisheries Management Council

Statistics Related

American Statistical Association
STATLIB - Carnegie Mellon University
National Institute of Standards and Technology, Guide to Available Mathematical Software
AD Model Builder Software

Fun Stuff

Fractint Software - used to create the background on this page
T-Bone's Stress Relief Aquarium 2.1 (334Kb)

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