Open-access Nota sobre la biologia de los depositos fangosos circalitorales frente a Punta del Este, Uruguay

Resumen

A circalitoral muddy bottom community is studied off Punta del Este, Uruguay. From this study a relevant fact is observed: the coexistence between deposit-feeders and suspension-feeders. It has long been thought that they are excludent trophic groups. The coexistence may be explained by the deposit stability favourished by a dense population of the tube-building polychaete Onuphis setosa.


ARTIGOS

Nota sobre la biologia de los depositos fangosos circalitorales frente a Punta del Este, Uruguay

Mario A. Caches

Museo de Historie Natural de La Paloma, Uruguay

SYNOPSIS

A circalitoral muddy bottom community is studied off Punta del Este, Uruguay. From this study a relevant fact is observed: the coexistence between deposit-feeders and suspension-feeders. It has long been thought that they are excludent trophic groups. The coexistence may be explained by the deposit stability favourished by a dense population of the tube-building polychaete Onuphis setosa.

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Agradecimientos

Agradezco al Dr. Jorge Amaro Padilha la generosidad de su dedicación a lo largo de la campaña "Striker". Asimismo al Arq. Jorge A. De Filippo por su estímulo y apoyo que no saben de desmayos.

Referencias Bibliográficas

AMARO, J. 1974. Boln Commn nac. Oceanogr. Montevideo, 1:15-18.

FAGER, E. W. 1964. Marine sediments: effects of a tube-building polychaete. Science, Wash., 143 (3604):356-359.

OTTMANN, F. & URIEN, C. M. 1965. Observaciones preliminares sobre la distribución de los sedimentos en la zona extema del Rio de La Plata. Anais Acad. bras. Ciênc., 37(supl.):283-289.

______ & ______ 1966. Revue Géogr. phys. Géol. dyn ., 8:209-224.

KHOADS, D. C. & YOUNG, D. K. 1970. The mfluence of deposit-feeding organisms on sediments stability and community trophic structure, J. mar. Res., 28(2):150-178.

______ & ______ 1971. Animal-sediment relations in Cape Cod Bay, Massachusetts. II. Reworking by Molpadia oolitica (Holothuroidea). Mar. Biol, 11:255-261.

SANDERS, H. U 1958. Benthic studies in Buzzards Bay. I. Animal-sediment relationships. Limnol Oceanogr., 3:245-258.

______ 1960. Benthic studies in Buzzards Bay. II. The structure of the softbottom community. Limnol. Oceanogr., 5:138-153.

YOUNG, D. K. 1971. Effects of infauna on the sediment and seston of a sub-tidal environment. Vie Milieu, suppl. 22,2:557-571.

______ & RHOADS, D. C. 1971. Animal-sediment relations in Cape Cod Bay, Massachusetts. I. A transect study. Mar. Biol., 11:242-254.

Referencias bibliográficas

  • AMARO, J. 1974. Boln Commn nac. Oceanogr. Montevideo, 1:15-18.
  • FAGER, E. W. 1964. Marine sediments: effects of a tube-building polychaete. Science, Wash., 143 (3604):356-359.
  • OTTMANN, F. & URIEN, C. M. 1965. Observaciones preliminares sobre la distribución de los sedimentos en la zona extema del Rio de La Plata. Anais Acad. bras. Ciênc., 37(supl.):283-289.
  • ______ & ______ 1966. Revue Géogr. phys. Géol. dyn ., 8:209-224.
  • ______ & ______ 1971. Animal-sediment relations in Cape Cod Bay, Massachusetts. II. Reworking by Molpadia oolitica (Holothuroidea). Mar. Biol, 11:255-261.
  • SANDERS, H. U 1958. Benthic studies in Buzzards Bay. I. Animal-sediment relationships. Limnol Oceanogr., 3:245-258.
  • ______ 1960. Benthic studies in Buzzards Bay. II. The structure of the softbottom community. Limnol. Oceanogr., 5:138-153.
  • YOUNG, D. K. 1971. Effects of infauna on the sediment and seston of a sub-tidal environment. Vie Milieu, suppl. 22,2:557-571.
  • ______ & RHOADS, D. C. 1971. Animal-sediment relations in Cape Cod Bay, Massachusetts. I. A transect study. Mar. Biol., 11:242-254.

Fechas de Publicación

  • Publicación en esta colección
    06 Jun 2012
  • Fecha del número
    1980
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E-mail: amspires@usp.br
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