| Abstract: | Radiotelemetry is a useful tool to describe habitat use by fish, but studies may inaccurately describe microhabitat use due to failure to account for errors when identifying fish locations. We developed a technique that identifies the extent of location errors of a hand-held radiotelemetry system. The ranges of location errors were determined among different observers, between land and water, and at an array of distances (5 - 125 m) between transmitters and receivers. No significant differences occurred among three observers at distances of 100 m or less or between transmitters on land or in water. Location error increased significantly with distance between transmitter and receiver; mean error was 0.5 m at 5 m and 4.5 m at 100 m. The 95th percentile of location errors was 1.5 m at 5 m and 10.5 m at 100 m. The number of trials needed to define location errors within 20% of the true mean (P ??? 0.05) was 109 at 5 m and 46 at 100 m. Determination of location error with radiotelemetry equipment can be conducted by two people on land with a relatively small amount of effort when the results are to be applied to relatively shallow waters. |
| Genre: | Article |
| ProdID: | 70020836 |
| Citation Author: | Simpkins, D. G.; Hubert, W. A. |
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| Citation End Page: | 268 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Freshwater Ecology |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | A technique for estimating the accuracy of fish locations identified by radiotelemetry; 1998; Article; Journal; Journal of Freshwater Ecology; Simpkins, D. G.; Hubert, W. A. |
| Citation Start Page: | 263 |
| Citation Volume: | 13 |
| Citation Year: | 1998 |
| Type: | citation/reference |
| Text: | A technique for estimating the accuracy of fish locations identified by radiotelemetry; 1998; Article; Journal; Journal of Freshwater Ecology; Simpkins, D. G.; Hubert, W. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1998 00:00 -0600 |
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