Louis A. Helfrich

Understanding Fish Nutrition, Feeds, and Feeding

Steven R. Craig, Louis A. Helfrich, David J. Kuhn et al. · VTechWorks (Virginia Tech) · 2017 · 371 citations · Full text

Recreational Specializations and Motivations of Virginia River Anglers

Brian D. Chipman, Louis A. Helfrich · North American Journal of Fisheries Management · 1988 · 175 citations

Fishery Assessment, Leisure Study, Behavioral Sciences +12

Pesticides and Aquatic Animals: A Guide to Reducing Impacts on Aquatic Systems

Louis A. Helfrich, Diana L. Weigmann, Patricia A. Hipkins et al. · VTechWorks (Virginia Tech) · 2009 · 143 citations · Full text

Determination of sex and maturational status of striped bass (Morone saxatilis) using ultrasonic imaging

Bill Blythe, Louis A. Helfrich, W. E. Beal et al. · Aquaculture · 1994 · 71 citations

Bioacoustics, Anatomy, Striped Bass +3

Fish farming in recirculating aquaculture systems (RAS)

Louis A. Helfrich, George S. Libey · 1991 · 51 citations

Aquacultural Engineering, Engineering, Aquacultural Systems +5