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| Registros recuperados: 48 | |
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| Soares, Claudemir Martins; Hayashi, Carmino; Faria-Soares, Anna Christina Esper; Galdioli, Eliana Maria; Soares, Telma. |
| This study analyzed the diet during early developmental stages of Astyanax lacustris (AA), Piaractus mesopotamicus (PM), Megaleporinus obtusidens (MO) and Prochilodus lineatus (PL), under experimental conditions. Fish larvae, 350 of each species, were stocked separately in 16 fiber-cement tanks (500 L), from which, three larvae of each species were collected every three days, for 36 days. Tanks were fertilized (1.5 g NPK-7: 14: 8) and had 50% of the surface with macrophytes. Larvae were grouped in age classes = I: 5 to 11, II: 14 to 20, III: 23 to 29 and IV: 32 to 38 days and, dissected for analysis of the digestive tract. Methodologies of dominance, frequency of occurrence and points of food items were used. For AA and PM larvae, measurements were taken... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish larval; Stomach content; Astyanax lacustris; Megaleporinus obtusidens; Piaractus mesopotamicus; Prochilodus lineatus.. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36846 |
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| Palacios-Narváez,Stephania; Valencia,Bellineth; Giraldo,Alan. |
| ABSTRACT The Cortez rainbow wrasse, Thalassoma lucasanum, is an abundant reef fish of the Eastern Tropical Pacific (ETP). Unlike other species of the genus Thalassoma that are recognized as cleaners, in T. lucasanum this behavior is rare, since it feeds mainly on invertebrates through foraging. However, information on the trophic ecology of this species is limited, especially in the ETP. In this study, we characterize the feeding habits of T. lucasanum in Gorgona Island (ETP) from analyzing its gut contents and calculating its trophic niche. Mollusks were the main food resource of T. lucasanum, being this the most important and frequent prey item found in 100 % of the stomachs analyzed (n = 5). In terms of biomass, crustaceans had the greatest contribution... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coral reef fish; Stomach content; Trophic interactions; Colombian Pacific.. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300251 |
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| MUTO,E. Y.; SOARES,L. S. H.; GOITEIN,R.. |
| The feeding habits of Rioraja agassizii (syn. Raja agassizii) and Psammobatis extenta (syn. Psammobatis glansdissimilis) of the South-eastern Brazilian coast were studied by means of stomach content analysis. The samples were obtained on eight seasonal oceanographic cruises, carried out between October 1985 and July 1987. The importance of each food item was evaluated on the basis of the Index of Relative Importance and the feeding similarity by Percentage of Similarity. The results indicated that both species are benthic feeders, preying mainly on Crustacea, especially Amphipoda, Caridea and Brachyura. Teleostei were also important for R. agassizii. Seasonal variation of the diet seems to be associated with the availability of the prey, whose distribution... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rajidae; Stomach content; Feeding habits; South Atlantic; Brazil. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200005 |
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| SILVA,J. A. M. da; PEREIRA-FILHO,M.; OLIVEIRA-PEREIRA,M. I. de. |
| The aim of this study was to evaluate the importance of fruits and seeds as food items in the natural diet of the tambaqui (Colossoma macropomum). During one year, tambaqui's stomach contents were collected, and their nutritional and energetic values were determined. During the flooding period, and while the river water was rising, which coincided with a high availability of fruits and seeds, the protein content of food was low (11%-15% of dry matter basis), whereas in the dry season, when tambaqui fed mainly zooplankton, there was a high protein content (45%-57% of dry matter basis). Lipid, carbohydrate, crude fiber, ash and gross energy contents of the diet varied depending on the river water level and the food items ingested. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tambaqui; Colossoma macropomum; Stomach content; Seasonal variation; Nutritional; Value. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400009 |
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| Registros recuperados: 48 | |
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