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Abstract:

The White-chinned Petrel Procellaria aequinoctialis is the second most commonly captured species by Argentinean longliners. The severe declines that this species has experienced in some of its populations (e.g. South Georgia Islands) have been principally attributed to incidental mortality associated with longliners. In this study we analyse the spatio-temporal variability in the mortality rates of White-chinned Petrels on the Patagonian Shelf and the effects that environmental and operational variability have on such mortality. The average capture rate (± 1 SD) for the period 1999-2003 was 0.014 ± 0.090 White-chinned Petrels for every 1,000 hooks deployed. Higher capture rates were observed when short longlines were deployed. Capture rates were not affected by the wind speed or by the time to the full moon. The distribution of the captures differed throughout the year. During autumn-winter most captures took place in the north of the Patagonian Shelf, whereas during spring-summer incidental captures occurred principally to the south between 45°S and 50°S. © 2007 BirdLife International.

Registro:

Documento: Artículo
Título:Spatio-temporal variation in mortality rates of White-chinned Petrels Procellaria aequinoctialis interacting with longliners in the south-west Atlantic
Autor:Laich, A.G.; Favero, M.
Filiación:Universidad Nacional de Mar del Plata, Facultad Ciencias Exactas y Naturales, Departamento Biología, Funes 3250 (B7602AYJ) Mar del Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917 (C1033AAJ), Buenos Aires, Argentina
Idioma: Inglés
Palabras clave:bird; capture method; mortality; population size; spatiotemporal analysis; Atlantic Ocean; Atlantic Ocean (Southwest); Patagonian Shelf; Procellaria aequinoctialis; Procellariidae
Año:2007
Volumen:17
Número:4
Página de inicio:359
Página de fin:366
DOI: http://dx.doi.org/10.1017/S0959270907000895
Título revista:Bird Conservation International
Título revista abreviado:Bird Conserv. Int.
ISSN:09592709
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09592709_v17_n4_p359_Laich

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Citas:

---------- APA ----------
Laich, A.G. & Favero, M. (2007) . Spatio-temporal variation in mortality rates of White-chinned Petrels Procellaria aequinoctialis interacting with longliners in the south-west Atlantic. Bird Conservation International, 17(4), 359-366.
http://dx.doi.org/10.1017/S0959270907000895
---------- CHICAGO ----------
Laich, A.G., Favero, M. "Spatio-temporal variation in mortality rates of White-chinned Petrels Procellaria aequinoctialis interacting with longliners in the south-west Atlantic" . Bird Conservation International 17, no. 4 (2007) : 359-366.
http://dx.doi.org/10.1017/S0959270907000895
---------- MLA ----------
Laich, A.G., Favero, M. "Spatio-temporal variation in mortality rates of White-chinned Petrels Procellaria aequinoctialis interacting with longliners in the south-west Atlantic" . Bird Conservation International, vol. 17, no. 4, 2007, pp. 359-366.
http://dx.doi.org/10.1017/S0959270907000895
---------- VANCOUVER ----------
Laich, A.G., Favero, M. Spatio-temporal variation in mortality rates of White-chinned Petrels Procellaria aequinoctialis interacting with longliners in the south-west Atlantic. Bird Conserv. Int. 2007;17(4):359-366.
http://dx.doi.org/10.1017/S0959270907000895