Friday, August 21, 2009
Standard Sampling Methods for North American Freshwater Fishes
Standardizing sampling methods for fish populations across large regions is important for consistent measurement of large-scale effects of climate or geography. In addition, pooling samples creates larger sample sizes and can facilitate data sharing among scientists and land managers. Sampling freshwater fish has largely not been standardized due to the diversity of fish and habitats. USGS aquatic ecologist Jason Dunham and co-authors contributed a chapter about sampling coldwater fish in wadeable streams to a new book that details common methods, protocols, and guidelines for sampling fish across North America. Topics include three common sampling methods: electrofishing, snorkeling, and nest counts. Each method provides complementary information about different species and life stages. The information will be useful for initiating new or fine-tuning ongoing sampling programs.
Dunham, J.B., Rosenberger, A.E., Thurow, R.F., Dolloff, A., Howell, P.J., 2009, Coldwater fishes in wadeable streams- Chapter 8 In Bonar, S., Hubert, W., Willis, D., eds., Standard Methods for Sampling North American Freshwater Fishes: Bethesda, MD, American Fisheries Society, p. 119-138. [FullText] Catalog No: 1724
Contact:
Jason
Dunham,
FRESC,
541-750-7397,
jdunham@usgs.gov
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