Estimados,
En el siguiente link encontrarán un nuevo paper de Parámetros Biológicos de
delfines Franciscana enmallados en Argentina, que acaba de ser publicado online
en la página de la JMBA:
Journal of the Marine Biological Association of the United Kingdom, FirstView
Articles
http://journals.cambridge.org/abstract_S0025315414000393
Biological parameters of franciscana dolphins, Pontoporia blainvillei,
by-caught in artisanal fisheries off southern Buenos Aires, Argentina
María Fernanda Negri, María Victoria Panebianco, Pablo Denuncio, María Natalia
Paso Viola, Diego Rodríguez and Humberto Luis Cappozzo
Abstract
The franciscana dolphin (Pontoporia blainvillei) is a small coastal dolphin
endemic to the south-western Atlantic Ocean. Incidental captures in fishing
gillnets is possibly the greatest conservation concern for this species, and
occurs within most of its geographical distribution. The aim of this paper is
to determine the biological parameters of franciscana dolphin by-caught from
artisanal coastal fisheries of the southern Buenos Aires province, Argentina.
Between 2003 and 2009, carcasses of 54 incidentally captured franciscanas were
collected. The age, sexual and physical maturity and body condition of each
specimen was determined. The sex-ratio of the by-caught dolphins did not differ
from parity and, consistent with other areas, juveniles younger than 4 yr old
were captured in higher proportion (69%). In addition, 74% of the entangled
animals were sexually immature and 85% physically immature. Sexually immature
dolphins were predominant in the spring, a period which coincides with the
breeding season. An assessment of the body condition of captured franciscanas
suggests that entanglements were not associated with a disease or physiological
disorder. The results presented here are important to assess the impact of
artisanal fisheries on the population of franciscana dolphins in the
southernmost area of its distribution.
Quedo a disposición por cualquier consulta o inquietud.
Saludos cordiales.
María Fernanda Negri
Dr. en Ciencias Biológicas
Laboratorio de Ecología y Conservación de Vida Silvestre
Centro Austral de Investigaciones Científicas (CADIC-CONICET)
Houssay 200 (V9410BFD) Ushuaia, Tierra del Fuego, Argentina
Teléfono / Phone: +54 (2901) 433320 ext. 140/128/135
Skype: jubanyfer
[email protected]
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