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| Registros recuperados: 40 | |
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| SANTOS,CAROLYNE D.S.; BALBO,SANDRA L.; GUIMARÃES,ANA T.B.; SAGAE,SARA C.; NEGRETTI,FÁBIO; GRASSIOLLI,SABRINA. |
| ABSTRACT Here, we evaluated whether the exposure of rats to a cafeteria diet pre- and/or post-weaning, alters histological characteristics in the White Adipose Tissue (WAT), Brown Adipose Tissue (BAT), and liver of adult male offspring. Female Wistar rats were divided into Control (CTL; fed on standard rodent chow) and Cafeteria (CAF; fed with the cafeteria diet throughout life, including pregnancy and lactation). After birth, only male offspring (F1) were maintained and received the CTL or CAF diets; originating four experimental groups: CTL-CTLF1; CTL-CAFF1; CAF-CTLF1; CAF-CAFF1. Data of biometrics, metabolic parameters, liver, BAT and WAT histology were assessed and integrated using the Principal Component Analysis (PCA). According to PCA analysis worse... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Obesity; Dams; Offspring; Histology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602887 |
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| Xavier,João Lucas P.; Scomparin,Dionizia X.; Pontes,Catherine C.; Ribeiro,Paulo Roberto; Cordeiro,Maiara M.; Marcondes,Jessica A.; Mendonça,Felipe O.; Silva,Makcine T. da; Oliveira,Fabio B. de; Franco,Gilson C.N.; Grassiolli,Sabrina. |
| In the present study we analyzed morphological and metabolic alterations in dams nursing small litters and their consequences to offspring throughout lactation. Offspring sizes were adjusted to Small Litter (SL, 3 pups/ dam) and Normal Litter (NL, 9 pups/ dam). Body weight, food intake, white adipose tissue (WAT) content, histological analysis of the pancreas, mammary gland (MG) and brown adipose tissue (BAT) as well as, plasma parameters and milk composition were measured in dams and pups on the 7th, 14th and 21st days of lactation. In general, SL-dams presented higher body weight and retroperitoneal fat content, elevated fat infiltration in BAT, reduced islets size and hyperglycemia throughout lactation in relation to NL-dams (p<0.05). Moreover, MG... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dams; Metabolic programming; Milk; Offspring. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100803 |
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| Pompeu,Paulo dos Santos; Horta,Luiz Felipe Mascarenhas; Martinez,Carlos Barreira. |
| This work aimed to experimentally evaluate the behavior of Brazilian freshwater fish species when submitted to a gradual increase in pressure, as well as sudden decompression's effects simulating the passage through a hydroelectric turbine. Four species from the São Francisco river basin were tested: Astyanax bimaculatus, Hypostomus sp., Leporinus reinhardti and Prochilodus costatus. For all of them mortality rates due to decompression were extremely low. However, the symptoms related to decompression, such as bulged eyes and hemorrhage, were not observed only in Hypostomus sp., and were more frequent the larger the pressure values were, considering the values from which decompression was performed. All these symptoms decreased significantly after 24 h of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Downstream fish passage; Dams; Experimental apparatus; Fish mortality; Pressure effects on fish. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100015 |
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| Leão,Raimundo A. de O.; Soares,Antônio A.; Teixeira,Adunias dos S.; Silva,Demetrius D. Da. |
| The state of Ceará, Brazil, has 75% of its area covered by Brazilian semiarid, with its peculiar features. In this state, the dams are constituted in water structure of strategic importance, ensuring, both in time and space, the development and supply of water to population. However, construction of reservoirs results in various impacts that should be carefully observed when deciding on their implementation. One of the impacts identified as negative is the increased evaporation, which constitutes a major component of water balance in reservoirs, especially in arid regions. Several methods for estimating evaporation have been proposed over time, many of them deriving from the Penman equation. This study evaluated six different methods for estimating... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dams; Semiarid; Hydrologycal modelling; Water balance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000100014 |
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| Besset, Manon; Anthony, Edward J.; Bouchette, Frederic. |
| The inception, growth, and decline of numerous large and small river deltas on Earth have been strongly influenced by human population dynamics and interventions on catchments, notably deforestation and reforestation. Over the last half century, the effects of catchment conditions in determining fluvial sediment supply have been exacerbated or moderated by dams and reservoirs. The sediment balance of river deltas, crucial in terms of delta shoreline stability, advance or retreat, and subsidence, has, in turn, been affected by variations in fluvial sediment supply. The shoreline mobility and resulting subaerial coastal area changes of a selection of 54 of the world's deltas was quantified over 30 years based on data culled from the literature and from... |
| Tipo: Text |
Palavras-chave: River deltas; Delta shoreline mobility; River sediment supply; Dams; Delta vulnerability; Delta erosion. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00504/61529/65524.pdf |
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| Miranda-chumacero, Guido; Mariac, Cédric; Duponchelle, Fabrice; Painter, Lilian; Wallace, Robert; Cochonneau, Gérard; Molina-rodriguez, Jorge; Garcia-davila, Carmen; Renno, Jean-françois. |
| Identifying fish spawning areas is of great ecological and conservation importance as fishes are suffering increasing threats levels from anthropogenic activities. However, to date very few studies have done so in the Amazon basin. In the Beni River located in the upper Madeira basin, fishers reported that a particular ecotone near Rurrenabaque city was a fish reproduction area. To test the importance of this zone as a spawning site, we conducted an ichthyoplankton survey during the month when reproduction is most likely to occur. The specific identification of larvae and eggs was made with a metabarcoding analysis. With this approach 13 different fish species of high importance for regional and local fisheries were identified, including the long-distance... |
| Tipo: Text |
Palavras-chave: Ichthyoplankton; Prochilodus; Brachyplatystoma; Zungaro; Dams; Arid extraction. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00654/76658/77792.pdf |
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| Traini, C.; Proust, J. -n.; Menier, D.; Mathew, M. J.. |
| Estuaries are coastal areas controlled by hydrodynamic factors such as sea-level changes, waves and tidal currents, and river discharge. This study focuses on the Vilaine Estuary which is strongly impacted by human activity after construction of Arzal dam in 1970. The purpose of this research is to differentiate the role of natural from anthropogenic factors on sediment dynamics within the Vilaine Estuary. We are proposing a hypothetical model based on the hydrodynamic modification and morpho-sedimentary development by analyzing the natural estuarine evolution and the impact of human alteration to the natural system by utilizing datasets including river discharge, tidal currents, winds and wave activities to further combine with photographic, bathymetric,... |
| Tipo: Text |
Palavras-chave: Estuaries; Man-induced effects; Estuarine dynamics; Tidal flats; Salt marshes; Dams. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00639/75120/75516.pdf |
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| Wagner,Ricardo Luiz; Makrakis,Sergio; Castro-Santos,Theodore; Makrakis,Maristela Cavicchioli; Dias,João Henrique Pinheiro; Belmont,René Fuster. |
| This paper presents results of a fishway evaluation performed at the Engenheiro Sérgio Motta Hydroelectric Power Plant (known as Porto Primavera) - CESP, Paraná River, Brazil. The evaluation was designed to quantify entry and passage proportions of 4 long-distance migratory fish species: Brycon orbignyanus (piracanjuba), Piaractus mesopotamicus (pacu), Prochilodus lineatus (curimba), and Rhinelepis aspera (cascudo-preto). Proportions finding and entering the fishway differed between species, ranged from 7.4 % (Prochilodus lineatus) to 55.4% (Piaractus mesopotamicus). Also, proportion passing was different between species, ranged from 31% (R. aspera) to 100% (Prochilodus lineatus). Fish that were marked and released within the fishway had greater failure... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Attraction; Dams; Fish ladder; Fishway; Migration; Swimming performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400011 |
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| Adite, A.. |
| A preliminary study of the mangrove fishes was undertaken from March 2000 to September 2001 in the Benin estuarine lagoon system in connected to the Mono river; a dam was constructed on this river to provide the Togo and Benin countries with electricity. The research aims to investigate fish species diversity and ecosystem degradation impacts in order to protect and to improve the mangrove fish resources. Specific objectives were (1) to investigate fish assemblages and distribution in the mangrove/estuarine habitat; (2) to investigate relationships between environment features and biological attributes; (3) to evaluate the estuarine ecosystem degradation, with regard to mangrove destruction and recent evolution of the Mono river caused by a dam... |
| Tipo: Preprint |
Palavras-chave: Mangroves; Conservation; Dams. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/455 |
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| Registros recuperados: 40 | |
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