Online Resources

Tools for fisheries professionals

This site is a companion for the American Fisheries Society book “Standard Methods for Sampling North American Freshwater Fishes”. The book, published in 2009, recommends standard methods for sampling freshwater fishes in North America. It was developed by 284 biologists from 107 agencies, universities, and organizations across Canada, Mexico and the United States. Increasingly biologists are adopting these methods so they will be able to compare their data to those collected by other organizations, in other regions or across time.

This web site is organized in four major sections. “About Standard Sampling” provides more information about standard sampling in general and how these techniques were developed by the American Fisheries Society. “Comments” allows you to comment on specific techniques so those working on future editions can incorporate your comments. “Compare Your Data With North American Standards” allows you to compare fish data collected from your water body to North American, Ecoregion, State and Provincial averages and percentiles. “Method Validation” shows you the latest research on the validation or “ground truthing” of specific standard methods.

Fishery managers rely on a wide variety of tools for the management and assessment of fish populations to maintain diverse and productive aquatic ecosystems and high quality recreational fisheries. One of the most valuable tools is rotenone, a chemical commonly used by fishery professionals throughout North America since 1947 to control fish and as a sampling aid.

The AFS Special Committee on Educational Requirements has completed a final draft of a list of North American colleges and universities that offer degrees in fisheries-related disciplines.  The list is available for download in spreadsheet format via the Education Section website.

This website provides access to the list of imperiled freshwater and diadromous fishes of North America as determined by the 2008 American Fisheries Society (AFS) Endangered Species Committee (ESC) on Fishes. Nearly 40% of the fish species in freshwater habitats are in some level of imperilment. At this website, one can view lists of imperiled fishes by freshwater ecoregion, by state or province boundary, and plot distributions of imperiled fishes by ecoregions or political boundaries. Lists can be downloaded for use in reports or analyses. There are also links to the Fisheries publication and other resources.

The snail part of this website provides access to the list of freshwater gastropods (snails) in Canada and the United States as determined by the 2013 American Fisheries Society (AFS) Endangered Species Committee (ESC) on freshwater gastropods. About 64% of snail species in freshwater habitats are in some level of imperilment and another 10% are considered extinct. At this website, one can view lists of native freshwater snails by state or province boundary, and plot distributions of snails by political boundaries. Lists can be downloaded for use in reports or analyses. While the committee did their best to define where snails occur or occurred in the past, much work still remains. We hope this website assists anyone interested in freshwater gastropods. There are links to the Fisheries publication, literature used to compile the list, online resources, snail recovery example stories, and other information.

The crayfish website provides access to the list of crayfish in Canada and the United States as determined by the 2007 American Fisheries Society (AFS) Endangered Species Committee (ESC) on Crayfishes. About 48% of the crayfish species in freshwater habitats are in some level of imperilment. At this website, one can view lists of crayfishes by freshwater ecoregion, by state or province boundary, and plot distributions of crayfishes by ecoregions or political boundaries. Both native and presumed introduced ranges are displayed. Lists can be downloaded for use in reports or analyses. There are also links to the Fisheries publication and other resources.