Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain
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| Formato: | Online |
| Idioma: | eng |
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Universidad de Costa Rica
2011
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/3180 |
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RBT31802022-06-06T18:54:02Z Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain Christina Esper Amaro de Faria, Anna Benedito, Evanilde peces dieta energía nutrición niveles tróficos Río Paraná fish diet energy nutrition trophic levels Paraná river Determining quality of food ingested and digestibility can be helpful in understanding the mechanisms that determine trophic plasticity, which is the ability of a given species to use a more advantageous food source at a given time. In this study, the chemical composition and digestibility of food ingested by various trophic fish groups at different sites of the Upper River Paraná floodplain are evaluated. Specimens of Pseudoplatystoma corruscans, Prochilodus lineatus, Leporinus friderici, Pterodoras granulosus and Schizodon borellii from the Baía, Ivinheima and Paraná Rivers and from Fechada and Ventura Lagoons were taken as samples (3-16cm-mesh net). Volume participation analyses of food items were determined and contents from the stomach and the intestine?s latter quarter were removed for bromatological analysis (energy, crude protein, ash and dry matter). Internal marker acid-insoluble ash was employed for apparent digestibility coefficients. P. lineatus and P. corruscans had an intake with lower and higher energy and crude protein contents, respectively. P. corruscans had slight variations in food items and composition, whereas P. granulosus had the greatest variation. Whereas P. lineatus had the highest apparent digestibility coefficients in energy, S. borellii showed least variation in diet. P. granulosus and P. lineatus had the higher percentages of dry matter in the stomach in the Paraná River, whereas P. corruscans had similar use in the Baía Rivers and Ventura Lagoon. S. borellii showed low utilization of germanous energy. It may be concluded that the site determined the variation in quality and use of diet by L. friderici, P. granulosus and S. borellii. The generalist species L. friderici demonstrated a good use of different food items ingested at the site; likewise, the generalist species P. corruscans had a similar diet and the same use of food. Rev. Biol. Trop. 59 (1): 85-101. Epub 2011 March 01. Universidad de Costa Rica 2011-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/3180 10.15517/rbt.v59i1.3180 Revista de Biología Tropical; Vol. 59 No. 1 (2011): Volume 59 – Regular number 1 – March 2011; 85–10 Revista de Biología Tropical; Vol. 59 Núm. 1 (2011): Volumen 59 – Número regular 1 – Marzo 2011; 85–10 Revista Biología Tropical; Vol. 59 N.º 1 (2011): Volume 59 – Regular number 1 – March 2011; 85–10 2215-2075 0034-7744 10.15517/rbt.v59i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/3180/3086 Copyright (c) 2011 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Christina Esper Amaro de Faria, Anna Benedito, Evanilde |
| spellingShingle |
Christina Esper Amaro de Faria, Anna Benedito, Evanilde Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| author_facet |
Christina Esper Amaro de Faria, Anna Benedito, Evanilde |
| author_sort |
Christina Esper Amaro de Faria, Anna |
| title |
Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| title_short |
Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| title_full |
Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| title_fullStr |
Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| title_full_unstemmed |
Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| title_sort |
quality and digestibility of food ingested by various trophic fish groups in the upper paraná river floodplain |
| title_alt |
Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain |
| publisher |
Universidad de Costa Rica |
| publishDate |
2011 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/3180 |
| work_keys_str_mv |
AT christinaesperamarodefariaanna qualityanddigestibilityoffoodingestedbyvarioustrophicfishgroupsintheupperparanariverfloodplain AT beneditoevanilde qualityanddigestibilityoffoodingestedbyvarioustrophicfishgroupsintheupperparanariverfloodplain |
| _version_ |
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