English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/87571
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Relative growth rates of the noble pen shell pinna nobilis throughout ontogeny around the Balearic Islands (Western Mediterranean, Spain)

AutorHendriks, Iris E. ; Basso, Lorena; Deudero Company, María de la Salud ; Cabanellas-Reboredo, Miguel ; Álvarez, Elvira
Fecha de publicación2012
EditorNational Shellfisheries Association
CitaciónJournal of Shellfish Research 31(3): 749-756 (2012)
ResumenIn this study, we evaluated the growth of adults and juveniles of the endangered noble pen shell Pinna nobilis, calculated the growth rates of newly recruited juveniles, and described relative directional growth during ontogeny. We described growth using posterior adductor muscle scars (PAMS) and fit of the von Bertalanffy growth curve for adult population data at shallow depths (510 m) around the Mallorca and Ibiza islands, and compared the parameters with other Mediterranean populations. Populations around Mallorca could be fitted according to the von Bertalanffy function Lt = 65.31(1 - e -0.11(t + 0.53)), whereas for Ibiza the function was Lt = 154.55(1 - e -0.03(t + 4.31)). We compared first-year growth rates obtained in the laboratory and from field collections with newly settled individuals. We found that experimentally evaluated growth rates of juveniles in the laboratory of 0.18 mm/day are low compared with minimum values obtained in the field, which range, on average, from 0.280.32 mm/day, indicating food availability can limit growth. Furthermore we investigated relative allometric growth patterns during ontogeny using a unique data set ranging from measurements of newly recruited juveniles with shell length less than 1 cm to measurements on adult shells of 69.8 cm length. Fitting a sigmoidal function to our data and solving for the allometric exponent b, we found 3 distinct growth periods: preferential growth in the length direction up to 5.82 cm in shell length, then widening of the shell up to 14.64 cm, after which the shape of the shell becomes more elongated once again.
Versión del editorhttp://dx.doi.org/10.2983/035.031.0319
Identificadoresdoi: 10.2983/035.031.0319
issn: 0730-8000
Aparece en las colecciones: (IMEDEA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Hendriks-2012-v31-n3-p749.pdf549,74 kBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.