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A comparison of diving behavior of goose‐beaked and dense‐beaked whales from tagging studies in multiple ocean basins
Barlow, J.; Baird, R.W.; Badger, J.; Schorr, G.S.; Falcone, E.A.; Coates, S.; Tyack, P.L.; Read, A.J.; Hickmott, L.S.; Durban, John W. *; Claridge, D.; de Soto, N.A.; Gonzalez, D.M.; Visser, F; Oudejans, M.G.; DeRuiter, S.L.; Sweeney, D.A.; Rone, B.K.; Watwood, S.L. (2025). A comparison of diving behavior of goose‐beaked and dense‐beaked whales from tagging studies in multiple ocean basins. Mar. Mamm. Sci. 42(1): e70070. https://dx.doi.org/10.1111/mms.70070
In: Marine Mammal Science. Society for Marine Mammalogy: Lawrence. ISSN 0824-0469; e-ISSN 1748-7692, meer
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| Author keywords |
beaked whale; dive cycle; echolocation; echolocation depth; foraging dive duration; maximum dive depth; Mesoplodon densirostris; Ziphius cavirostris |
| Auteurs | | Top |
- Barlow, J.
- Baird, R.W.
- Badger, J.
- Schorr, G.S.
- Falcone, E.A.
- Coates, S.
- Tyack, P.L.
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- Read, A.J., meer
- Hickmott, L.S.
- Durban, J.W.
- Claridge, D.
- de Soto, N.A.
- Gonzalez, D.M.
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- Visser, F, meer
- Oudejans, M.G.
- DeRuiter, S.L.
- Sweeney, D.A.
- Rone, B.K.
- Watwood, S.L.
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| Abstract |
Studies of cetacean diving behavior in multiple locations in different ocean basins allow for an assessment of variability within and among populations. We examine foraging dive behaviors of goose-beaked whales (Ziphius cavirostris) and dense-beaked whales (Mesoplodon densirostris) using data from 132 tagged whales in seven locations in the Pacific and Atlantic Oceans and the Mediterranean Sea. Acoustic recording tags are used to identify foraging dives by the presence of echolocation. For other tag types, foraging dives are identified based on maximum dive depth. Five parameters are used to characterize foraging dives: maximum dive depth, foraging dive duration, dive cycle duration, and the mean and standard deviation of echolocation depths. We find that differences among dives within one tagged individual are typically larger than the differences among individuals or among locations, and that differences among individuals are typically similar in magnitude to differences among locations. Regression is used to estimate the mean and standard deviation of echolocation depths from maximum dive depth for dives without acoustic data. Composite values of foraging dive parameters (and standard deviations) are estimated as the average of all study locations. |
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