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Feeding habits of Hyale media (Dana, 1853) (Crustacea-Amphipoda)

Abstract

Feeding of males and females of the Gammaridea Hyate media at mature and immature stages were tested in laboratory experiments. Macro and microscopic algae as well as dead or alive animals were utilized as food. This gammarid is omnivorous, feeding by predation, scavenging, browsing and scraping. Feeding behaviour was discontinuous. Padina vickersiae was more utilized in winter and Ulva fasciata in summer. The feeding activity of all the animals showed great variability in relation to the type of food. Higher temperatures probably account for the higher consumption observed in summer.

Feeding behaviour; Experimental research; Developmental stages; Amphipoda; Hyale media; Itanhaem; Brazil


ARTIGOS

Feeding habits of Hyale media (Dana, 1853) (Crustacea-Amphipoda)

Airton Santo Tararam; Yoko Wakabara; Hilda de Sousa Lima Mesquita

Instituto Oceanográfico da Universidade de São Paulo (Caixa Postal,9075, 01000 São Paulo, SP)

SYNOPSIS

Feeding of males and females of the Gammaridea Hyate media at mature and immature stages were tested in laboratory experiments. Macro and microscopic algae as well as dead or alive animals were utilized as food. This gammarid is omnivorous, feeding by predation, scavenging, browsing and scraping. Feeding behaviour was discontinuous. Padina vickersiae was more utilized in winter and Ulva fasciata in summer. The feeding activity of all the animals showed great variability in relation to the type of food. Higher temperatures probably account for the higher consumption observed in summer.

Descriptors: Feeding behaviour, Experimental research, Developmental stages, Amphipoda, Hyale media, Itanhaem: SP, Brazil.

Descritores: Habitos alimentares, Pesquisa experimental, Estadios de desenvolvimento, Amphipoda, Hyale media, Itanhaem: SP.

Full text available only in PDF format.

Texto completo disponível apenas em PDF.

Acknowledgements

We would like to express our gratitude to Drs E. C. Oliveira Filho and E. J. de Paula; Drs M. B. B. Kutner and I. R. Oliveira for the algae and diatoms classification, respectively.

(Received 28-Nov-1985; accepted 27-Dez-1985)

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Publication Dates

  • Publication in this collection
    04 June 2012
  • Date of issue
    1985

History

  • Accepted
    27 Dec 1985
  • Received
    28 Nov 1985
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