Localizing individual soniferous fish using passive acoustic monitoring
| Autor: | Rosalyn L. Putland, Alayna Mackiewicz, Allen F. Mensinger |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Oyster toadfish Passive acoustic monitoring Ecology biology Applied Mathematics Ecological Modeling Dusk biology.organism_classification Multilateration 010603 evolutionary biology 01 natural sciences Computer Science Applications Opsanus Computational Theory and Mathematics Modeling and Simulation Time difference 0103 physical sciences Environmental science Fish 010301 acoustics Cartography Ecology Evolution Behavior and Systematics Toadfish |
| Zdroj: | Ecological Informatics. 48:60-68 |
| ISSN: | 1574-9541 |
| Popis: | Identifying where fish inhabit is a fundamentally important topic in ecology and management allowing acoustically sensitive times and areas to be prioritized. Passive acoustic localization has the benefit of being a non-invasive and non-destructive observational tool, and provides unbiased data on the position and movement of aquatic animals. This study used the time difference of arrivals (TDOA) of sound recordings on a four-hydrophone array to pinpoint the location of male oyster toadfish, Opsanus tau, a cryptic fish that produces boatwhistles to attract females. Coupling the TDOA method with cross correlation of the different boatwhistles, individual toadfish were mapped during dawn (0523–0823), midday (1123–1423), dusk (1723–2023) and night (2323−0223) to examine the relationship between temporal and spatial trends. Seven individual males were identified within 0.5–24.2 m of the hydrophone array and 0.0–18.2 m of the other individuals. Uncertainty in passive acoustics localization was investigated using computer simulations as |
| Databáze: | OpenAIRE |
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