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At-sea distribution of waved albatrosses and the Galápagos Marine Reserve
Anderson, D.J.; Huyvaert, K.P.; Wood, D.R.; Gillikin, C.L.; Frost, B.J.; Mouritsen, H. (2003). At-sea distribution of waved albatrosses and the Galápagos Marine Reserve. Biol. Conserv. 110(3): 367–373. https://dx.doi.org/10.1016/S0006-3207(02)00238-0
In: Biological Conservation. Elsevier: Barking. ISSN 0006-3207; e-ISSN 1873-2917, meer
|  |
| Trefwoorden |
Phoebastria irrorata (Salvin, 1883) [WoRMS]
Marien/Kust |
| Author keywords |
Waved albatross; Foraging; Galápagos Marine Reserve |
| Auteurs | | Top |
- Anderson, D.J.
- Huyvaert, K.P.
- Wood, D.R.
|
- Gillikin, C.L.
- Frost, B.J.
- Mouritsen, H.
|
|
| Abstract |
Albatross populations worldwide are threatened by incidental takes in longline fishery operations. The recent establishment of the Galápagos Marine Reserve (GMR) is relevant to the longline bycatch issue, as it prohibits industrial longlining in the vicinity of the major nesting site of waved albatrosses (Phoebastria irrorata). However, the legality of the fishing protections is being challenged, highlighting a need for data on use of the GMR by albatrosses. We used satellite tracking over a total of four breeding seasons to determine the distribution of waved albatrosses inside and outside the GMR, and thereby assess the degree of protection that GMR provisions offer to this species. During the incubation period, breeding adults made commuting trips from the nesting island (Isla Española) to the Peruvian upwelling zone, traveling north, east, and south after leaving the nest. During the brooding period, the distribution contracted markedly, and most satellite fixes were within the GMR. During the rearing period, breeders performed both long trips outside the GMR and short trips within. The southeastern portion of the GMR is used throughout the incubation, brooding, and early rearing periods by breeding waved albatrosses. Indirect information from non-breeding adults indicates that they are likely to use the waters of the GMR extensively. |
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