Journal of Ethology

, Volume 24, Issue 3, pp 219–225 | Cite as

Feeding behavior of the longsnout seahorse Hippocampus reidi Ginsburg, 1933

  • Ana Karina C. Felício
  • Ierecê L. Rosa
  • Antonio Souto
  • Renato H. A. Freitas
Article

Abstract

Hippocampus reidi is a threatened species and one of the most heavily traded seahorses in the aquarium trade. Nevertheless, little is known about its biology and ecology. This study encompasses the first description of the feeding behavior of H. reidi, with emphasis on preferred feeding time, feeding frequency, feeding behavior during nonreproductive and reproductive periods, and prey choice. Underwater observations were made in NE Brazil from May 2003 to September 2004, and the behavior of 57 specimens was recorded during 118 feeding events. In the laboratory, 8 specimens and 176 feeding events were recorded. Prey choice was tested among carideans, amphipods, live and frozen brine shrimp, with the most consumed prey being the caridean Hyppolyte curacoensis. H. reidi fed both at diurnal and crepuscular hours, its feeding frequency being directly proportional to luminous intensity. No feeding was observed at night. Males with a fully developed pouch exhibited a significantly higher feeding frequency than nonreproductive males. H. reidi generally is a “sit-and-wait” predator that occasionally pursues prey.

Keywords

Hippocampus reidi Feeding behavior Feeding preference Brazil Seahorse 

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Copyright information

© Japan Ethological Society and Springer-Verlag 2006

Authors and Affiliations

  • Ana Karina C. Felício
    • 1
  • Ierecê L. Rosa
    • 1
  • Antonio Souto
    • 2
  • Renato H. A. Freitas
    • 1
  1. 1.Laboratório de Peixes-Ecologia e Conservação (LAPEC), Departamento de Sistemática e Ecologia, CCENUniversidade Federal da ParaíbaJoão PessoaBrazil
  2. 2.Departamento de ZoologiaUniversidade Federal de PernambucoRecifeBrazil

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