acta ethologica

, Volume 15, Issue 1, pp 25–31 | Cite as

Interpopulational variation of the mating system in the peacock blenny Salaria pavo

  • João L. Saraiva
  • Giulia Pignolo
  • David GonçalvesEmail author
  • Rui F. Oliveira
Original Paper


The ecology and mating system of two populations of the peacock blenny Salaria pavo that have been reported to differ in sexual behaviour were studied. In the Gulf of Trieste, a northern Adriatic Sea population lives in rocky shores, whilst in the Ria Formosa, an Atlantic population inhabits a coastal lagoon with sandy barrier islands. In the Gulf of Trieste, nest availability was found to be higher and nest aggregation lower than in Ria Formosa. Nesting males courted females more and in higher proportion, and inversely, females directed less courtship displays towards nest holders in the Gulf of Trieste than in Ria Formosa. The relative frequency of small female-like males that reproduce by parasitically fertilizing eggs in the larger males’ nests was lower in the Gulf of Trieste population. This variation in the sexual behaviour of nesting males and females is likely to reflect a plastic behavioural response to the varying ecological conditions. The difference between populations in the relative frequency of parasitic males suggests that the male alternative reproductive tactics are condition-dependent.


Breeding Season Nest Site Artificial Reef Parasitic Male Secondary Sexual Character 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We thank two anonymous reviewers for their valuable comments on the manuscript. JLS thanks Chioggia Hydrobiological Station and the staff of the Department of Biology of the University of Trieste, the Miramare Marine Reserve and Stefano Savio. JR and VA appreciate the skilful technical assistance provided by S. Chenu. JLS was supported by a Fundação para a Ciência e Tecnologia (FCT) PhD fellowship (SFRH/BD/10764/2002). This study was funded by the grants POCTI/BSE/38395/2001 and PTDC/MAR/69749/2006 from FCT, the European Commission FEDER Program and the FCT Plurianual Program (R&D unit MAR-LVT-Lisboa-331).


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Copyright information

© Springer-Verlag and ISPA 2011

Authors and Affiliations

  • João L. Saraiva
    • 1
    • 2
  • Giulia Pignolo
    • 3
  • David Gonçalves
    • 1
    • 2
    Email author
  • Rui F. Oliveira
    • 1
    • 4
  1. 1.Instituto Superior de Psicologia AplicadaLisbonPortugal
  2. 2.Centro de Ciências do MarUniversidade do AlgarveFaroPortugal
  3. 3.Environmental Chemistry and Risk Assessment Research Unit, Department of Chemical SciencesUniversity of TriesteTriesteItaly
  4. 4.Instituto Gulbenkian de CiênciaChampalimaud Neuroscience ProgrammeOeirasPortugal

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