%0 Journal Article
%T Diet of the oilfish Ruvettus pretiosus (Perciformes: Gempylidae) in the Saint Peter and Saint Paul archipelago, Brazil
%A Danielle de Lima Viana
%A Mariana Travassos Tolotti
%A Mariana Porto
%A Rodolfo Jorge Vale de Ara¨²jo
%J Brazilian Journal of Oceanography
%D 2012
%I Universidade de S?o Paulo
%R 10.1590/s1679-87592012000200008
%X Feeding aspects of the oilfish, Ruvettus pretiosus, were studied based on 360 stomachs of both male and female specimens caught off the Saint Peter and Saint Paul Archipelago. The total length of the specimens ranged from 52.4 cm to 189.0 cm. Of the 360 stomachs examined, 135 presented some food and 225 were empty. Thirty-four taxa were identified, represented by 16 fish, 17 cephalopods and 1 crustacean. The stabilization of the food items richness was attained at 35 food items and 104 stomachs, approximately. A remarkable predation upon the flying fish Cheilopogon cyanopterus was observed around SPSPA, directly related to the main reproductive period of this species in the area. The oilfish's food spectrum shows that the species feeds on a wide vertical range in the water column, catching prey items at the surface or in shallow waters, as well as epi-mesopelagic fish, in addition to mesopelagic cephalopods. Aspectos alimentares do peixe-prego, Ruvettus pretiosus, foram estudados com base nos est magos de 360 esp¨¦cimes, de ambos os sexos, capturados nos arredores do Arquip¨¦lago de S o Pedro e S o Paulo. Todos os exemplares foram capturados com linha de m o. O comprimento total dos exemplares variou de 52,4 cm a 189,0 cm. Dos 360 est magos examinados, 135 apresentaram algum alimento e 225 estavam vazios. Trinta e quatro t¨¢xons foram identificados, representados por 16 peixes, 17 cefal¨®podes e um crust¨¢ceo. A estabiliza  o da riqueza dos itens alimentares foi obtida com 35 itens e 104 est magos. Uma preda  o not¨¢vel sobre o peixe-voador Cheilopogon cyanopterus foi observada nas adjac¨ºncias do ASPSP, diretamente relacionada com o principal per¨ªodo reprodutivo dessa esp¨¦cie na ¨¢rea. O espectro alimentar do peixe-prego mostra que a esp¨¦cie se alimenta em uma ampla faixa vertical na coluna d'agua, capturando desde presas de superf¨ªcie ou ¨¢guas rasas, a peixes epi-mesopel¨¢gicos, al¨¦m de cefal¨®podes mesopel¨¢gicos.
%K Perciformes
%K Esp¨¦cie bentopelagica
%K Conte¨²do estomacal
%K linha de m o
%K Ilha
%K Perciformes
%K Benthopelagic species
%K Stomach content
%K hand line
%K Island
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592012000200008