Artículo
Bivalve contribution to shallow sandy bottom food web off Mar del Plata (Argentina): Inference from stomach contents and stable isotope analysis
Penchaszadeh, Pablo Enrique
; Arrighetti, Florencia
; Cledón, Maximiliano
; Livore, Juan Pablo
; Botto, Florencia
; Iribarne, Oscar Osvaldo
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Fecha de publicación:
04/2006
Editorial:
Signótica
Revista:
Journal of Shellfish Research
ISSN:
0730-8000
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Two infaunal species, the purple clam Amiantis purpurata and the razor clam Solen tehuelchus, are common species in the 15-20 m sandy bottom sediments between southern Brazil and central Argentina. Both species are food sources for the coastal food web, but the extent of their contribution to this food web is still unknown. Based on stomach content analysis and ä15N and ä15C stable isotope signatures we explored the position of these clams in the food web. Stomach content shows that the ray Sympterigia bonapartei and the white croaker Micropogonias furnieri prey on entire A. purpurata and S. tehuelchus. The stable isotopic analysis confirms this result. The elephant fish Callorynchus callorynchus and the Brazilian codling Urophycis brasiliensis also show values of C and N consistent with those expected from species that are preying on A. purpurata. Based on the prediction from the isotopic analysis the clam A. purpurata is a food source for the shrimps Artemesia longinaris, Pleoticus muelleri, the anemone Antholoba achates and the gastropod Buccinanops monilifer. The gastropods Adelomelon brasiliana, Olivancillaria deshayesiana, Olivancillaria urceus, and Zidona dufresnei also shows evidence of consuming A. purpurata, but with contribution from other species with heavier C content. According to complementary results the razor clam Solen tehuelchus may be this other species. The stable isotopic analysis shows that both clam species are at the base of the consumers in the food web. A. pupurata showed lighter C mark than S. tehuelchus but the N isotopic mark showed higher value, but still being within the same trophic level.
Palabras clave:
Bivalve
,
Foodweb
,
Amiantis
,
Solen
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Articulos(MACNBR)
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Penchaszadeh, Pablo Enrique; Arrighetti, Florencia; Cledón, Maximiliano; Livore, Juan Pablo; Botto, Florencia; et al.; Bivalve contribution to shallow sandy bottom food web off Mar del Plata (Argentina): Inference from stomach contents and stable isotope analysis; Signótica; Journal of Shellfish Research; 25; 1; 4-2006; 51-54
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