Louis A. Helfrich

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Virginia Polytechnic Institute and State University
College of Natural Resources
Fisheries and Wildlife Sciences
ProfessorAppointed: 1991
Professional Headshot of Louis A. Helfrich

Mailing Address

Virginia Polytechnic Institute and State University
Blacksburg, Virginia 24061
United States

Contact Information

Phone: (703) 231-5059
Fax: (703) 231-3330
lhelfric@vt.edu

Qualifications

Ph.D., Michigan State University, 1976.
M.S., Michigan State University, 1972.
M.Ed., Pennsylvania State University, 1967.
B.S., Clarion Colleges, 1964.

Expertise and Research Interests

I have conducted research in the general areas of freshwater fisheries management.My research interests are as follows:aquaculture;aquatic resource management;pond, lake, river and stream management;water quality protection;environmental conservation and assessment. My international experience includes 3 months work in Sri Lanka.

Other Expertise

Environmental Education;Fisheries Extension Education;Ecotourism;Aquaculture Consultant.

Keywords

COS Keywords:

Agriculture, Fish and Fisheries, Limnology, Water Quality.

Additional Terms:

Aquatic Ecology, Fishery Biology, Fishery Management, Lake Management, Limnology, Pollution Biology, Pond Management, Stream Management, Water Quality.

Previous Positions

1982-1981, Associate Professor, Virginia Polytechnic Institute and State University
1976-1982, Assistant Professor, Virginia Polytechnic Institute and State University

Publications

  • Blythe WG, Helfrich LA, Sullivan CV, Sex steroid hormone and vitellogenin levels in striped bass \(Morone saxatilis\) maturing under 6-, 9-, and 12-month photothermal cycles., General and Comparative Endocrinology, 94(1), 122-34, 1994 Abstract
  • Weigmann, D.L, L.A. Helfrich, Content Analysis of te Pond Manageent Literature, 17, 27-34, 1992
  • Dean, J.C, Nielson L.A, Helfrich L.A, D.L. Garling, Replacing Fish Meal with Seafood Processing Wastes in Channel Catfish Diets, Progressive Fish-Culturists, 57, 7-13, 1992
  • Helfrich, L.A, B.L. Griswold, A review of extension education in fisheries management and aquaculture: the role of extension, Critical Review in Fisheries Science, 4, 317-337, 1990
  • Helfrich, L.A, W.T. Kendall, Movements of hatchery-Reared Rainbow, Brook, and Brown Trout Stocked in a Virginia MOuntain STream, Progressive Fish-Culturist, 44, 3-7, 1982

Profile Details

Last Updated: 3/31/2000

COS Expertise ID #204405
Reference this profile directly: http://myprofile.cos.com/lhelfric