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Upper Midwest Environmental Sciences Center
folder.gif Long Term Resource Monitoring Program
Fisheries Data - Graphical Fish Database Browser

About the LTRMP Fish ComponentHelp using Fish Database Browser


Query for Frequency of Occurrence



*Note for more information on specific gears, click on link.

Frequency occurrence is a measure of species ubiquity and is portrayed as a time series. The metric is calculated as the percent of Long Term Resource Monitoring Program samples containing at least one individual of any given species.
Graphical Fish Database Browser Home | About the LTRMP Fish Component | Help Page
Catch Per Unit of Effort | Proportional Stock Density | Frequency of Occurrence
Species List | Community Composition | Species Richness | Sampling Allocations
Total Catches | LTRMP Hydrographs

Photographs taken by David Ostendorf

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URL: http://www.umesc.usgs.gov/data_library/fisheries/graphical/freqoc.shtml
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: August 21, 2009