Data/hora: 10/06/2024 14:05:37

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Application of Leslie's model on a population of common dolphins (Delphinus delphis): Sensitivity study
Autores: | Fifas, Spyros; Goujon, Michel; Antoine, Loic.
Data: | 1998-11
Ano: | 1998
Palavras-chave: | Survival rate; Driftnet fishery; Common dolphin; Linear model; Taux de survie; Pêche au filet maillant dérivant; Modèle linéaire; Modèle linéaire.
Resumo: | The rapid development of the albacore tuna (Thunnus alalunga) driftnet fishery in the Pay of Biscay (Atlantic ocean, France) has incited European management authorities to ask for a study of its ecological impact on populations of common dolphins and striped dolphins. A programme with onboard observers has been led during 1992 and 1993, and a sighting survey has allowed the evaluation of the abundances of fractions of populations in the studied area. For the population of common dolphins, the biological parameter estimation has allowed the building of a discrete age-structured model based on a Leslie matrix. Sensitivity studies have been conducted using four model parameters (age of first reproduction, interval between births, juvenile and adult survival rates). Results show that the increase rate of the population presents the highest sensitivity versus adult survival rate and, in second place versus the interval between births.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/1998/publication-865.pdf

DOI:10.1016/S0990-7440(99)80001-1

Editor: | Elsevier
Relação: | http://archimer.ifremer.fr/doc/00000/865/
Formato: | application/pdf
Fonte: | Aquatic Living Resources (0990-7440) (Elsevier), 1998-11 , Vol. 11 , N. 6 , P. 359-369
Fonte: | 1998 Published by Elsevier SAS