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| Registros recuperados: 233 | |
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| Abelha,Milza Celi Fedatto; Goulart,Erivelto; Kashiwaqui,Elaine Antoniassi Luiz; Silva,Marlene Rodrigues da. |
| Aspects of the feeding ecology of a small characin, Astyanax paranae, were studied during 1996/1997 and 1998/1999 in the Alagados Reservoir, Paraná, Brazil (25º01'50.0'' S; 050º03'41.9'' W). Fishes were quarterly captured from the reservoir's riverine and lacustrine zones and stomachs contents of 711 adult individuals were analyzed by volumetric method. Species' feeding spectrum and spatial, temporal and sexual variations on diet were evaluated. Data matrix was summarized by detrented correspondence analysis (DCA) and the axes scores from DCA were used as variables in one-way ANOVA of null models to test diet variations. Astyanax paranae fed on detritus/sediment, plant matter, algae and aquatic and terrestrial invertebrates. The time-space prevalence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Feeding; Dam; Detritivory; Freshwater. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000300006 |
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| Abrunhosa,Fernando A.; Arruda,Danielle C.B.; Simith,Darlan J.B.; Palmeira,Carlos A.M.. |
| The present study investigated whether the callianassid Callichirus major shows a lecithotrophic behaviour during larval development. Two experiments were carried out. In the first experiment, larvae were subjected to an initial period of feeding, while in the second they were subjected to an initial period of starvation. In Experiment 1, 80% of C. major larvae succeeded moulting to juvenile stage in treatment with larvae fed every day. In the treatments with larvae fed for 1, 2 and 3 days there was total mortality before they reached the megalopal stage. In Experiment 2, zoea larvae showed more resistance when subjected to an initial period of starvation in which larvae starved for 1, 2 and 3 days and had survival rates of 100, 60 and 80%, respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Callichirus major; Callianassidae; Feeding; Lecithotrophic behaviour; Starvation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300006 |
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| Aguilar-Betancourt,Consuelo M.; González-Sansón,Gaspar; Flores-Ortega,Juan R.; Kosonoy-Aceves,Daniel; Lucano-Ramírez,Gabriela; Ruiz-Ramírez,Salvador; Padilla-Gutierrez,Sandra C.; Curry,R. Allen. |
| ABSTRACT The main goal of this research was to investigate the differences in diet composition among three species of the genus Lutjanus inhabiting a coastal lagoon as juveniles. The working hypothesis was that these species feed on a common base of food resources and therefore, some niche overlap is present in terms of general diet composition. However, changes in the trophic niche with size and differences in some morphological traits among species explain observed differences in diet. Fish were collected during 42 sampling trips conducted regularly from February 2011 to January 2012 using several types of fishing gear. Total number of analyzed stomachs was 288 for Lutjanus argentiventris from 2.3 to 19.9 cm total length (TL); 178 for Lutjanus colorado... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estuarine habitat; Feeding; Lutjanidae; Ontogenic changes; Trophic morphology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000400211 |
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| Aguilar,YM; Yero,OM; Navarro,MIV; Hurtado,CAB; López,JAC; Mejía,LBG. |
| In this experiment, 240 Cobb-500® broilers reared from1 to 49 days, and distributed according to a completely experimental randomized design with four treatments of four replicates each in order to evaluate the effect of the dietary inclusion of 0, 33, 66 or 100 g/kg of squash seed meal (SSM) (Cucurbita moschata) on the performance, carcass yield, serum lipid profile and sensory meat quality of broilers. Significant differences (p<0.05) were detected in performance, carcass weight, weight and breast yield, and leg weight. The best results were obtained with 33 and 66 g/kg as compared to the control diet and 100 g SSM /kg. Abdominal fat decreased with the inclusion of 66 and 100 g SSM / kg, but the sensory quality of breast and thighs was not affected by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Feeding; Lipids; Squash seed meal. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400001 |
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| Aidar,Davi S.; Campos,Lucio A.O.. |
| Three methods of division of Melipona quadrifasciata Lep. colonies were evaluated: fisogastric queen naturally mated; orphans colonies, and queen mated in laboratory. Out of six colonies, five had grade 7 in 221 days, reaching 83,3% of success, in the 1st method. Out of four, 100% were formed using the 2nd method, in 221 days, and 71,4% out of seven colonies were formed with grade 7 in 195 days using the 3rd method. All colonies were treated with Syrup-A; the same management and same system of evaluation. Colonies obtained were described performance by the following mathematic models: Grade1 = 1.202 + 0.262 x reading; Grade2 = 1.474 + 0.250 x reading and Grade3 = 1.406 + 0.287 x reading. The 3rd method was the best considering time of the colonies... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hymenoptera; Beecolonies; Feeding; Fisogastric queens. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000100021 |
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| Albertoni,Edélti Faria; Palma-Silva,Cleber; Esteves,Francisco de Assis. |
| Three species of shrimp, Farfantepenaeus brasiliensis (Latreille, 1817), F. paulensis (Pérez-Farfante, 1967) (Penaeidae) and Macrobrachium acanthurus (Wiegmann, 1836) (Palaemonidae) were sampled at the Imboassica lagoon (Rio de Janeiro State, Brazil), in order to estimate the overlap of dietary niches and electivity of their prey, through the analysis of the fauna associated with the macroalgae Chara and of the benthic fauna on the sediment. The overlap of dietary niches was estimated using five indexes. A total of 495 F. brasiliensis, 131 F. paulensis and 102 M. acanthurus stomachs were examined. The results of the different indexes of niche overlap exhibited the same general trend in the three species, indicating a high degree of homogeneity in the diet... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Farfantepenaeus brasiliensis; Farfantepenaeus paulensis; Macrobrachium acanthurus; Stomach contents. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000100017 |
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| Albertoni,Edélti Faria; Palma-Silva,Cleber; Esteves,Francisco de Assis. |
| The gut content of 495 specimens of Farfantepenaeus brasiliensis, 131 of F. paulensis (Penaeidae) and 102 of Macrobrachium acanthurus (Palaemonidae) were analyzed to establish the composition of their diets F. brasiliensis had as the most important feeding items in its diet larvae of Chironomidae, Polychaeta and Heleobia australis (Mollusca). For F. paulensis, the most important items were the same as for F. brasiliensis, but the order of importance of H. australis and Polychaeta was inverted. M. acanthurus had detritus as the most important item, followed by Chironomidae larvae, Odonata nymphs, and fragments of the macroalgae Chara. The results showed that the three species were omnivorous, with a varied diet including both components of macrofauna of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coastal lagoon; Feeding; Farfantepenaeus brasiliensis; Farfantepenaeus paulensis; Macrobrachium acanthurus; Feeding Index. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000300011 |
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| ALMEIDA, I. M. de; RESENDE, E. K. de. |
| Foram analisadas as dietas dos peixes detritívoros da baía Tuiuiú, meandro abandonado do rio Paraguai, próximo a Corumbá, Mato Grosso do Sul. Os peixes detritívoros apresentam estratégias específicas para o consumo do detrito orgânico existente na baía, como o sairu-boi, Potamorhina squamoralevis, que possui os olhos voltados para baixo para consumo do detrito acumulado no fundo, e o cascudo, Liposarcus anisitsi, que se coloca de barriga para cima para raspar os detritos e algas acumuladas nas raízes das macrófitas aquáticas. Para L. anisitsi, que teve os conteúdos estomacais analisados em quase todos os períodos de amostragem, foi encontrada correlação entre índice alimentar e altura de inundação e transparência da água. Peixes detritívoros apresentam... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Liposarcus anisitsi; Potamorhina squamoralevis; Pulso de inundação; Feeding; Flood pulse.; Dieta.. |
| Ano: 2012 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/937689 |
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| Álvarez Capote, J.S.. |
| Considering the need to help the Cuban shrimp culture industry remain profitable, and the impact that feeding has on production costs, a research series was designed to evaluate new formulations that improve white shrimp Litopenaeus schmitti growth and reduce feeding costs. Five completely randomized experiments with 3 replicates per treatment were conducted. Juveniles (0.2-0.5 g) from the experimental farm were used. Trials were conducted at the Centro de Obtención y Cría de Larvas de Santa Cruz del Sur, Camaguey, and the Complejo Camaronero de Tunas de Zaza, Sancti Spiritus. In the first trial, 40-l plastic experimental units with 10 shrimp/unit were used to test the response of L. schmitti to the partial and total substitution (46, 59, 75, 88 y 100%) of... |
| Tipo: Theses and Dissertations |
Palavras-chave: Feeding; Nutrition; Fish meal; Feeding; Nutrition; Fish meal; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_49892; Http://aims.fao.org/aos/agrovoc/c_2925. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1548 |
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| Alvarez, J.S.; Sorí, M.A.; Pelegrin, E.; Galindo, J.. |
| Esta investigación se realizó en la camaronera CULTIZAZA, Sancti Spiritus, ante la necesidad de continuar profundizando sobre el comportamiento alimentario del camarón blanco del Pacífico Litopenaeus vannamei, como una vía más para mejorar las condiciones financieras y salud de la camaronicultura cubana. Los resultados indicaron que en época de invierno se requiere de mayor vigilancia en el manejo del alimento en los estanques de cultivo respecto al verano, para evitar suministros innecesarios de alimento que incrementarían la contaminación en los estanques, las situaciones de estrés y aparición de enfermedades que conspiran finalmente con la rentabilidad de la granja. |
| Tipo: Book Section |
Palavras-chave: Feeding; Shrimp culture; Feeding; Http://aims.fao.org/aos/agrovoc/c_2838. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4015 |
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| Alves, Gustavo Henrique Zaia; Tófoli, Raffael Marcos; Ganassin, Maria Julia Mileo; Hahn, Norma Segatti. |
| This study aimed to assess the diet of Poecilia reticulata in rural (RS) and urban stream (US) and under seasonal influence. We hypothesized that rainfall have a strong negative impact on the diet of the species in the US, due to its abrupt effect on food resources; in RS this effect is less apparent. Both streams belong to Pirapó River sub-basin, Paraná River basin. Fishes were sampled bimonthly, between July 2007 and June 2008 in three sample sites along the longitudinal gradient of the streams, using electrofishing. According to the Feeding Index, in both streams the population consumed almost exclusively detritus associated with aquatic organisms (>95%), regardless of the hydrological period. The main taxa explored by fish were Simuliidae in RS and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecologia de ecossistemas benthivorous fish; Feeding; Macroinvertebrates; Anthropic impact; Paraná River basin Ecologia alimentar de peixes. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29881 |
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| Amara, Rachid; Mahe, K; Le Pape, Olivier; Desroy, N. |
| Growth, condition, diet and spatial distribution of the solenette Buglossidium luteum (Risso, 1810) were investigated along the coasts of the French Atlantic, eastern English Channel and Southern Bight of the North Sea. Distribution and habitat preferences of solenette were analysed in relation to physical and biological features presumed to influence fish distribution. B. luteum was patchily distributed and concentrated in shallow muddy and muddy-sand bottoms moderately influenced by estuarine waters (euhaline waters). In the studied area, solenette seemed to find habitats suitable for growth. Food availability was not assumed to be a limiting factor for solenette distribution in contrast to abiotic factors such as salinity. |
| Tipo: Text |
Palavras-chave: Solenette; Habitat suitability; Distribution; Feeding; Growth. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-777.pdf |
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| Aranha,José Marcelo R.; Caramaschi,Érica P.; Caramaschi,Ulisses. |
| Patterns of spatial occupation, feeding, and reproductive period of two species, Corydoras aeneus and Corydoras gr. carlae (Siluroidei, Callichthyidae), coexistents in the Alambari River (Botucatu, São Paulo), were studied. High diet overlap, partial spatial segregation, and well differentiated reproductive strategies were verified. These findings do not permit to evidence the occurrence of competitive interactions between the analysed species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Siluroidei; Callichthyidae; Spatial occupation; Feeding; Reproductive period. |
| Ano: 1993 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000300013 |
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| Registros recuperados: 233 | |
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