A model for estimating passive integrated transponder (PIT) tag antenna efficiencies for interval-specific emigration rates
Transactions of the American Fisheries Society
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Our goal was to understand movement and its interaction with survival for populations of stream salmonids at long-term study sites in the northeastern United States by employing passive integrated transponder (PIT) tags and associated technology. Although our PIT tag antenna arrays spanned the stream channel (at most flows) and were continuously operated, we are aware that aspects of fish behavior, environmental characteristics, and electronic limitations influenced our ability to detect 100% of the emigration from our stream site. Therefore, we required antenna efficiency estimates to adjust observed emigration rates. We obtained such estimates by testing a full-scale physical model of our PIT tag antenna array in a laboratory setting. From the physical model, we developed a statistical model that we used to predict efficiency in the field. The factors most important for predicting efficiency were external radio frequency signal and tag type. For most sampling intervals, there was concordance between the predicted and observed efficiencies, which allowed us to estimate the true emigration rate for our field populations of tagged salmonids. One caveat is that the model's utility may depend on its ability to characterize external radio frequency signals accurately. Another important consideration is the trade-off between the volume of data necessary to model efficiency accurately and the difficulty of storing and manipulating large amounts of data.
Suggested Citation
Horton, G., Dubreuil, T., and Letcher, B., 2007, A model for estimating passive integrated transponder (PIT) tag antenna efficiencies for interval-specific emigration rates: Transactions of the American Fisheries Society, v. 136, no. 5, p. 1165-1176, https://doi.org/10.1577/T06-053.1.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A model for estimating passive integrated transponder (PIT) tag antenna efficiencies for interval-specific emigration rates |
| Series title | Transactions of the American Fisheries Society |
| DOI | 10.1577/T06-053.1 |
| Volume | 136 |
| Issue | 5 |
| Publication Date | January 09, 2011 |
| Year Published | 2007 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Transactions of the American Fisheries Society |
| First page | 1165 |
| Last page | 1176 |