Acessibilidade / Reportar erro

Interaccion trofica entre dos estrellas de mar (Astropecten riensis y Tethyaster vestitus) en Golfo Triste, Venezuela

Resumen

This research has been done on the basis of samples obtained at depths between 21 and 63m by trawling in Golfo Triste. The stomach content of 153 specimens of Tethyaster vestitus and 981 specimens of Astiopecten riensis were analyzed. A.riensis seems to be an important element within the trophic structure of the community under study, constituting the second and third level of consumers. T.verstitus is, within the above-mentioned community one of the rare constitiuents of the 4th level consumers despite the fact that it takes part in the 3rd level as well.


ARTIGOS

Interaccion trofica entre dos estrellas de mar (Astropecten riensis y Tethyaster vestitus) en Golfo Triste, Venezuela* * Trabajo realizado con financiamiento parcial del CONICIT (Venezuela) y la Universidad Simón Bollvar.

Ricardo A. Bitter; Ricardo Molinet; Pablo E. Penchaszadeh

Instituto de Tecnología y Ciencias Marinas, Universidad Simón Bolívar, Sartenejas, Baruta, Estado Miranda, Caracas, Venezuela

SYNOPSIS

This research has been done on the basis of samples obtained at depths between 21 and 63m by trawling in Golfo Triste. The stomach content of 153 specimens of Tethyaster vestitus and 981 specimens of Astiopecten riensis were analyzed. A.riensis seems to be an important element within the trophic structure of the community under study, constituting the second and third level of consumers. T.verstitus is, within the above-mentioned community one of the rare constitiuents of the 4th level consumers despite the fact that it takes part in the 3rd level as well.

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

  • CHRISTENSEN, A.M. 1970. Feeding biology of the sea-star Astropecten irregularis Pennat. Ophelia, 8:1-134.
  • HULINGS, N.C. & HEMLAY D.W. 1963. Art irrvestigation of the feeding habits of two species of sea-star. Bull. mar. Sci., 13:355-359
  • PENCHASZADEH, P.E.; CAHIZ X & LERA M. 1977. Comportamiento trófico de tres especies tropicales de Luidia (Echinodermata, Asteroidea). IV Simpósio Latinoamericano de Oceanografía Biológica (Resúmenes) p.110-111.
  • PEREZ NIETO H.; ALMEIDA P.E.; THOMAZ A.J.; ROA PALMA V.; & MARTIN L. 1977. Geologia y biologia litoral y marina de Golfo Triste. Región Centro Ocidental de Venezue la (Proyecto CONICIT DF-S1-0204).
  • RODRIGUEZ DE, A.M. 1972. Alimentación y comportamiento alimentario de los equinodermos. Lagena, 29:23-31.
  • WALENKAMP. J.H.C. 1976. The asteroides of the coastal waters of Surinam. Zool. verhand (147):1-91.18pl.
  • WELL, H.W.; WELLS, M.J. & GRAY , I.E. 1961. Food of the sea star Astropecten articulatus. Biol. Bull. Woods Hole, 120(2)265-271.
  • ZOPPI DE ROA, E. 1967. Contribución al estudio de los equinodernos de Venezuela. Acta Biol. Venezuelica, 5(17).267-333.
  • *
    Trabajo realizado con financiamiento parcial del CONICIT (Venezuela) y la Universidad Simón Bollvar.
  • Fechas de Publicación

    • Publicación en esta colección
      06 Jun 2012
    • Fecha del número
      1980
    Instituto Oceanográfico da Universidade de São Paulo Praça do Oceanográfico, 191, 05508-120 São Paulo SP Brasil, Tel.: (55 11) 3091 6513, Fax: (55 11) 3032 3092 - São Paulo - SP - Brazil
    E-mail: amspires@usp.br