Detritivorous Fish
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. NMR in Analysis of the Nutritional Value of Lipids from Muscles and Livers of Wild Amazonian Fishes with Different Eating Habits Over Seasonal Variation
Endogenous and environmental factors can influence the lipid contents of fishes among which, in the Amazon River, seasonal dynamics influences stand out. Herein, nine most consumed Amazonian fish species had their lipid composition evaluated in terms of effects of tissue, season and eating habits. Higher amounts of lipids were obtained from fish livers than
J. Braz. Chem. Soc.. Publicado em: 2020-12
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2. Survey of fish species from the Lower Roosevelt River, Southwestern Amazon basin
Resumo: Este estudo apresenta um inventário da ictiofauna da sub-bacia do baixo Rio Roosevelt e seus tributários associados. As coletas de peixes com malhadeiras e as medições de parâmetros ambientais da água ocorreram em Novembro/2012 (enchente), Fevereiro/2013 (cheia), Maio/2013 (vazante) e Agosto/2013 (seca). A média da profundidade foi 8,86 m, da
Biota Neotrop.. Publicado em: 02/09/2019
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3. Composition of gastrointestinal content, protease and lipase activities in summer and winter of four freshwater siluriforms (Teleostei: Actinopterygii) with two different feeding habits
ABSTRACT The aim of this study was to determine the composition of gastrointestinal content and protease and lipase activities in summer and winter as well as to evaluate the relationship between digestive enzyme activity and centesimal composition of gastrointestinal content and feeding habits of two omnivorous species, Rhamdia quelen (Quoy & Gaimard, 1824)
Zoologia (Curitiba). Publicado em: 18/06/2018
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4. Influence of hydrology on the fish body condition in a large subtropical floodplain
ABSTRACT With the objective of finding fluctuations on fish body condition in the Middle Paraná River floodplain in different hydrological scenarios, this attribute was analyzed in several trophic groups of a secondary floodplain channel and its associated lakes between 2010 and 2012. Standardized residuals generated by length-weight regressions were calcul
Neotrop. ichthyol.. Publicado em: 30/03/2017
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5. Gram-negative intestinal indigenous microbiota from two Siluriform fishes in a tropical reservoir
The Gram-negative intestinal microbiota of Hypostomus auroguttatus and Pimelodus maculatus, a detritivorous and an omnivorous fish species, respectively, were compared between fishes from the reservoir and the stretch of the river below the dam of the Funil hydroelectric plant, Rio de Janeiro, Brazil. Four selective culture media were used under aerobic and
Braz. J. Microbiol.. Publicado em: 2014-12
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6. Fish diet composition in permanent and semi-permanent pools in tropical wetlands of the Yucatan Peninsula
We compared fish diet composition between permanent (P) and semi-permanent (SP) pools in Petenes Biosphere Reserve (PBR), Campeche. A total of 445 gut contents were examined to determine stomach relative fullness (RF), fish diet as index of niche breadth (INB) and diet overlap. In SP pools, species showed a RF of 1.66 (57.20 % empty stomachs) whereas in P po
Neotrop. ichthyol.. Publicado em: 2013
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7. Diet and trophic guilds of fish assemblages in two streams with different anthropic impacts in the northwest of Paraná, Brazil
In the present study, we describe the diets of the fish assemblages in two streams in the Maringá region of Paraná that are under the influence of different anthropic impacts. We also evaluate how the origin and use of food resources varies temporally and spatially and how the trophic organization of the fish assemblages differs between the two streams. Fi
Zoologia (Curitiba). Publicado em: 2012-02
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8. Peixes detritivoros da planicie inundavel do Rio Miranda, Pantanal, Mato Grosso do Sul, Brasil.
Foi analisada a alimentacao de 17 especies de peixes detritivoros, pertencentes as familias Prochilodontidae, Curimatidae e Loricariidae, de quatro ambientes da planicie de inundacao (dois meandros abandonados, uma "vazante" e um pequeno lago) de rio Miranda. Duas metodologias foram utilizadas para a avaliacao da alimentacao dessas especies. O teor de materi
Corumba: EMBRAPA-CPAP. Publicado em: 2011
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9. Profile of micronucleus frequencies and DNA damage in different species of fish in a eutrophic tropical lake
Lake Paranoá is a tropical reservoir for the City of Brasilia, which became eutrophic due to inadequate sewage treatment associated with intensive population growth. At present, two wastewater treatment plants are capable of processing up to 95% of the domestic sewage, thereby successfully reducing eutrophization. We evaluated both genotoxic and cytotoxic
Genetics and Molecular Biology. Publicado em: 17/01/2009
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10. Composição, abundância e dinâmica reprodutiva e alimentar de populações de peixes de um reservatório recém-formado (UHE - Capim Branco I / MG)
The loss of diversity is one of the main damage to the environment caused by the construction of reservoirs and it is related to the disappearance of terrestrial habitats by flooding, and the changes produced in the aquatic habitat. These changes reflect, above all, in the availability of food and in the reproduction of the fish species, leading to a remarka
Publicado em: 2008
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11. ComposiÃÃo, abundÃncia e dinÃmica reprodutiva e alimentar de populaÃÃes de peixes de um reservatÃrio recÃm-formado (UHE - Capim Branco I / MG)
The loss of diversity is one of the main damage to the environment caused by the construction of reservoirs and it is related to the disappearance of terrestrial habitats by flooding, and the changes produced in the aquatic habitat. These changes reflect, above all, in the availability of food and in the reproduction of the fish species, leading to a remarka
Publicado em: 2008
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12. Ecologia trófica da comunidade de peixes do reservatório do Lobo (Broa), Brotas-Itirapina/SP, com ênfase à introdução recente da espécie alóctone Cichla kelberi (Perciformes, Cichlidae).
The introduction of predatory species has carrying deep modifications on the original fish wildlife structure at aquatic environments. The feeding spectrum characterization of fish community from Lobo Reservoir (Broa), beside providing information about the species biology and establishing trophic guilds, made possible the follow-up of trophic alterations du
Publicado em: 2007