Feeding ecology of the transparent goby Aphia minuta (Pisces : Gobiidae) in the northwestern Adriatic Sea (Articolo in rivista)

Type
Label
  • Feeding ecology of the transparent goby Aphia minuta (Pisces : Gobiidae) in the northwestern Adriatic Sea (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • La Mesa M. (1), Borme D. (2), Tirelli V. (2), Di Poi E. (3), Legovini S. (2), Umani S.F. (3) (2008)
    Feeding ecology of the transparent goby Aphia minuta (Pisces : Gobiidae) in the northwestern Adriatic Sea
    in Scientia marina
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • La Mesa M. (1), Borme D. (2), Tirelli V. (2), Di Poi E. (3), Legovini S. (2), Umani S.F. (3) (literal)
Pagina inizio
  • 99 (literal)
Pagina fine
  • 108 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/3695/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 72(1) (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 IsMar-Cnr, istituto di scienze Marine, sezione di ancona, Largo Fiera della Pesca 60125, ancona, italy. e-mail: m.lamesa@ismar.cnr.it 2 ogs, istituto nazionale di oceanografia e di geofisica sperimentale, Dipartimento di oceanografia Biologica, Via a. Piccard 54, 34014 s. Croce, trieste, italy. 3 Dipartimento di Biologia, Università di trieste, Via Valerio 28/1, 34127 trieste, italy. (literal)
Titolo
  • Feeding ecology of the transparent goby Aphia minuta (Pisces : Gobiidae) in the northwestern Adriatic Sea (literal)
Abstract
  • The feeding ecology of the transparent goby Aphia minuta was examined in spring (May 2003) in the coastal waters off Comacchio, in the northwestern Adriatic Sea. Stomach content analysis indicated A. minuta to be a planktivorous species, feeding exclusively on pelagic invertebrates. The diet composition was dominated by the calanoid copepods Acartia clausi and Temora longicornis, followed in decreasing order of importance by other copepods (especially calanoids and Oncaea spp.) and larvae of decapods, polychaetes and bivalves. A. minuta exhibited a generalistic feeding strategy with a relatively broad niche width. Abundant taxa in the environment, such as A. clausi and T. longicornis, were seldom selected, whereas rare taxa, such as larvae of polychaetes and decapods, were highly selected. According to the observed ontogenetic shift in diet, small-size individuals relied preferentially on juvenile T. longicornis and Oncaea spp., whereas large-sized specimens consumed preferably A. clausi and calanoids. The positive relationship found between prey and fish size may help to mitigate the intraspecific competition for food resources. (literal)
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