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Prey selectivity of the octocoral Carijoa riisei at Pernambuco, Brazil Anais da ABC (AABC)
Gomes,Paula B.; Lira,Ana K.F.; Naud,Jean-Philippe; Santos,Andre M.; Pérez,Carlos D..
This study was designed to evaluate prey selection (type and size) by the octocoral Carijoa riisei at Porto de Galinhas beach, Northeast Brazil, relating prey availability in plankton with the content inside polyps. Diatoms and cyanophytes were the predominant items found in both polyp gastric cavity and plankton. A correlation between prey abundance in the plankton and in the gastric cavity of C. riisei polyps was observed. Mastogloia sp. showed the highest positive electivity index (0.99). Benthonic items were found, with 0.51% of total consumed preys. The size amplitude of prey items in the plankton was similar to those found inside the polyps, although the mean prey size in the polyps (112.7 µm) was significantly lower than the value found in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alcyonacea; Natural feeding; Prey selectivity; Prey availability; Trophic ecology.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100016
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