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| Espínola,Luis Alberto; Júlio Junior,Horácio Ferreira; Benedito,Evanilde. |
| The allocation of assimilated energy may be influenced by seasonal changes, growth, and reproductive cycle of fish, food consumption and environmental conditions. The objective of this research was to evaluate the energetic variations of Cichla kelberi in the upper Paraná River floodplain, analyzing the caloric content in muscles, gonadosomatic index (GSI), and the condition factor between assessed systems, sex, and stage of gonadal maturation. The results obtained in the present study permit assuring that this is a species that efficiently converts the resources of the environment into energy. Although presenting higher condition factor in the environment where there is a greater ease in getting food (Paraná subsystem), the energy identified in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Condition factor; Energetic density; Gonadal maturation; Paraná and Baía Rivers. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200015 |
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| Pazianoto,Laryssa H. R.; Cionek,Vivian de M.; Fogaça,Fábio N. O.; Benedito,Evanilde. |
| ABSTRACT Diet, energy density (ED) and relative condition factor (Kn ) were used to investigate the energetic assimilation of the invasive fish Hemiodus orthonops under different environmental condition of the upper rio Paraná floodplain. Samples were taken in June and September 2013 and 2014. Nutrient content was determined for sediment. The diet was combined in the Food Index (IAi%), ED was expressed in Kcal/g of dry weight and Kn was calculated by: Kn = Wt/We, where Wt is the total weight and We the expected weight. Detritus/sediment prevailed in the stomachs of specimens from Ivinhema and Baia, while Algae was the main item in Paraná, reflecting the resource availability. ED and Kn from Ivinhema specimens were the greatest, consequence of the quality... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological invasions; Detritivory; Energetic density; Hemiodus orthonops; Relative condition factor. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100225 |
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| Protásio, Thiago de Paula; Alves, Isabel Cristina Nogueira; Trugilho, Paulo Fernando; Silva, Vinícius Oliveira; Baliza, Ana Elisa Rodarte. |
| This research aimed to evaluate briquettes made from coffee husk, eucalyptus sawdust and maize harvesting residues, and the influence of post compaction interval on some properties of the briquettes. After oven drying of the biomass, the briquettes were produced in a laboratory briquetting machine at 120 ºC and 15 MPa. Bulk density and heating value of the fresh biomass were analyzed. After compaction, influence of time on moisture content, volumetric expansion an bulk density of the briquettes was analyzed. From the results, it was observed that milled coffee husk had the highest mean value of bulk density. There was no statistical difference for higher heating value among the biomass analyzed. The effect of pos compaction interval was significant on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Briquettes; Energetic density; Dimensional variation Briquetes; Densidade energética; Variação volumétrica. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/288 |
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