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| Registros recuperados: 34 | |
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| Ceneviva-Bastos,Mônica; Casatti,Lilian. |
| O objetivo deste estudo foi investigar a biologia alimentar de Knodus moenkhausii (Eigenmann & Kennedy, 1903) em riachos do Alto rio Paraná no Estado de São Paulo. Em oito riachos (R1-R8), K. moenkhausii se alimentou de 18 itens, dos quais algas, ninfas de efemerópteros e larvas de dípteros foram os itens autóctones mais freqüentes e dominantes; fragmentos de insetos terrestres, himenópteros e aranhas foram os itens alóctones mais freqüentes e dominantes. No riacho R2, K. moenkhausii apresentou dieta distinta dos demais riachos, principalmente em função da profundidade, tipo de substrato e da presença de vegetação ripária. No riacho R9, amostrado mensalmente durante um ano, foram identificados 15 itens, dos quais insetos terrestres predominaram ao... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nectônicos; Onivoria; Táticas alimentares; Sazonalidade. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100002 |
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| Santos,Tiago Gomes dos; Rossa-Feres,Denise de C.; Casatti,Lilian. |
| As atividades antrópicas têm alterado profundamente os ambientes naturais e muitas vezes afetado a diversidade e distribuição dos anuros. O objetivo deste estudo foi investigar as seguintes questões: (1) qual a composição da anurofauna em uma região de pastagem com clima marcadamente sazonal no extremo noroeste paulista? (2) como adultos e girinos das espécies se distribuem temporal e espacialmente? (3) a riqueza de espécies está correlacionada com descritores da heterogeneidade dos hábitats de reprodução? Na área estudada foram registradas 20 espécies de anuros, distribuídas em 11 gêneros de quatro famílias: Leptodactylidae (9), Hylidae (8), Microhylidae (2) e Bufonidae (1). Destas, Chaunus schneideri (Werner, 1894), Physalaemus centralis Bokermann, 1962... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecologia de comunidades; Heterogeneidade ambiental; Amplitude de nicho; Sazonalidade; Área alterada. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100007 |
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| Casatti,Lilian; Castro,Ricardo M. C.. |
| The ecomorphology of 14 fish species resident in a headwater riffles area of the São Francisco river, southeastern Brasil, was analyzed and combined with diet and feeding behavior data, previously obtained by us. The three larger species groups formed in the ecomorphological analysis were found to reflect primarily microhabitat occupation in the following manner: a) nektonic characids with compressed bodies, lateral eyes and lateral pectoral fins, with diurnal and opportunistic feeding habits (Astyanax rivularis, Bryconamericus stramineus, and Bryconamericus sp.); b) nektobenthic characiforms and siluriforms with fusiform bodies and expanded pectoral fins, including sit-and-wait characidiins, predators of aquatic insect larvae (Characidium fasciatum and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish community; Feeding tactics; Diet; Morphology; Rheophilic; Phylogeny. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200006 |
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| Rocha,Fabíola Carla da; Casatti,Lilian; Carvalho,Fernando Rogério; Silva,Alexandre Marco da. |
| Macrophytes are a major component of lentic and lotic aquatic ecosystems. As consequences of environmental degradation, species of cattail (genus Typha) may become dominant along streams. The purpose of this study was to investigate the structure and feeding of fish assemblages in stream stretches under influence of Typha sp., also addressing the influences of temporal variation on composition, abundance, biomass, diversity, species richness, and feeding of fish. Six streams (labelled S1-S6) in the upper rio Turvo basin, southeast Brazil, with dense stands of Typha sp. in the instream and riparian habitat, were studied in six campaigns during three central months in both of the dry and wet periods, by using a standardized collection effort. Thirty-seven... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Disturbance; Chironomidae larvae; Detritus; Macrophytes; Upper rio Paraná. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200016 |
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| Zeni,Jaquelini O.; Sensato-Azevedo,Luisa Martins; Santos,Eduardo Fernando dos; Brejão,Gabriel Lourenço; Casatti,Lilian. |
| Abstract Fish ecomorphology and diet can help us to understand species response to impacts and coexistence patterns. Thus, we developed a comparative analysis of ecomorphology and diet of Inpaichthys kerri and Hyphessobrycon vilmae and tested for environmental variables that explain their abundance in headwater streams. We sampled streams from the Aripuanã River basin, Mato Grosso State, Brazil. We sampled environmental variables following a standardized protocol and used 30 and 80 individuals from each species to obtain ecomorphological attributes and feeding index, respectively. To identify environmental variables that influence species abundance, we developed generalized additive mixed models. Inpaichthys kerri presented broader and deeper caudal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deforestation; Diet; Ecomorphology; Marginal grasses; Species coexistence. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300208 |
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| Langeani,Francisco; Casatti,Lilian; Gameiro,Helena Seixas; Carmo,André Bellucco do; Rossa-Feres,Denise de Cerqueira. |
| The structure of the fish communities of a pool and a rapid in the ribeirão Santa Bárbara is described. This stream of 5th order is a direct tributary of the rio Tietê in the system of the upper rio Paraná. Thirty three species, from nine families and three orders, were referred in the two mesohabitats: the pool with 31 species, and the rapid with 18. Orders Characiformes, Siluriformes, and Perciformes presented the greatest number of species in the two mesohabitats. The families Characidae and Loricariidae were the most specious, followed by Cichlidae in the pool, and by Parodontidae in the rapid. Most species were accidental, 17 in the pool, and 10 in the rapid, and only six were constant in the two mesohabitats. The greatest diversity and evenness... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seasonality; Spatial distribution; Upper rio Paraná system; Niche breadth; Diversity; Adventitious streams. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200009 |
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| Manzotti,Angelo Rodrigo; Ceneviva-Bastos,Mônica; Teresa,Fabrício Barreto; Casatti,Lilian. |
| ABSTRACT Habitat homogenization has been a major impact in stream ecosystems, and it is considered one of the main drivers of biotic homogenization as well, leading to the loss of water quality and fish diversity. In this study, we added artificial woody structures and leaf packs in physically impacted streams to test if the additions can improve habitat complexity and change the taxonomic and functional structure of fish communities. The experiment was done in eight streams impacted by siltation, deforestation, and habitat homogeneization, inserted in an agricultural landscape from the Upper Paraná River Basin, and lasted 112 days. The provision of artificial microhabitats increased instream habitat diversity by creating patches of organic matter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Habitat Management; Neotropical streams; Structural Complexity; Woody debris. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100204 |
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| Teresa,Fabrício Barreto; Romero,Renato de Mei; Casatti,Lilian; Sabino,José. |
| Nuclear-follower interaction is a particular kind of interspecific foraging association that includes a nuclear species, which dig in or inspect the bottom, and follower species, which access the food items made available by the nuclear. In this study we examined the effect of habitat structure on nuclear-follower relationship in a stream of Bodoquena Plateau, Central-West Brazil. Foraging associations were registered while snorkeling in 24 observation sessions, totaling six hours in unaltered and altered sites. Overall, 272 nuclear-follower associations were registered, having four species acting as nuclear and seven as followers. The dominant nuclear species were different in each site. Prochilodus lineatus was the main nuclear species in the altered... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bodoquena Plateau; Feeding behavior; Habitat heterogeneity; Interspecific interaction; Substrate. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100010 |
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| Casatti,Lilian; Teresa,Fabrício Barreto; Gonçalves-Souza,Thiago; Bessa,Eduardo; Manzotti,Angelo Rodrigo; Gonçalves,Cristina da Silva; Zeni,Jaquelini de Oliveira. |
| The aim of this study was to verify whether taxonomic and functional composition of stream fishes vary under three different preservation conditions of riparian zone: preserved (PRE), intermediate condition (INT), and degraded (DEG). Five stream stretches representing each condition were selected. Samples were taken from each stream in three occasions during the dry seasons from 2004 to 2007. Electro fishing (PRE and INT), sieves, dip nets, and hand seines (DEG) were used according to the characteristics of each sampled site. Overall, 46 species were registered. Differences in the taxonomic and functional species composition among groups were found, following the condition of riparian zones. The ichthyofauna recorded in the PRE was typical to pristine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biotic homogenization; CWM analysis; Functional composition; Riparian forest; Species composition. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100020 |
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| Teresa,Fabrício Barreto; Casatti,Lilian. |
| We assessed the preference of 10 fish species for depth and velocity conditions in forested streams from southeastern Brazil using habitat suitability criteria (HSC curves). We also tested whether preference patterns observed in forested streams can be transferred to deforested streams. We used data from fish sampled in 62 five-meter sites in three forested streams to construct preference curves. Astyanax altiparanae, A. fasciatus, Knodus moenkhausii, and Piabina argentea showed a preference for deep slow habitats, whereas Aspidoras fuscoguttatus, Characidium zebra, Cetopsorhamdia iheringi, Pseudopimelodus pulcher, and Hypostomus nigromaculatus showed an opposite pattern: preference for shallow fast habitats. Hypostomus ancistroides showed a multimodal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Depth; Fish assemblages; Habitat preference; Riparian forest; Velocity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200395 |
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| Ávila,Milton P.; Carvalho,Rafaela Neves; Casatti,Lilian; Simião-Ferreira,Juliana; Morais,Lorrane Faria de; Teresa,Fabrício B.. |
| ABSTRACT The development of effective monitoring tools depends on finding sensitive metrics that are capable of detecting the most important environmental impacts at a given region. We assessed if metrics derived from stream fish assemblages reflect physical habitat degradation and changes in land cover. We sampled the ichthyofauna and environmental characteristics of 16 stream sites of first and second order in the Upper Tocantins River basin. The streams were classified according to their environmental characteristics into reference (n = 5), intermediate (n = 4), and impacted (n = 7). A total of 4,079 individuals in five orders, 12 families, and 30 species were collected. Of the 20 metrics tested, eight were non-collinear and were tested for their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicators; Brazilian savannah; Fish fauna; Multimetric index. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100303 |
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| Ceneviva-Bastos,Mônica; Casatti,Lilian; Rossa-Feres,Denise Cerqueira. |
| The habitat use and feeding habits of a set of nektonic fish species often found in small low-gradient streams in Brazil were investigated. The core species in the present study was Knodus moenkhausii (Eigenmann & Kennedy, 1903), the most abundant of five species in the nektonic guild. Records of the species in 22 streams indicate that K. moenkhausii is associated, on a mesohabitat scale, with runs, and on a microhabitat scale, with sandy bottoms, intermediate depth, and open sites without coverage or submerged vegetation. During snorkeling observations, two additional nektonic registered species showed spatial segregation from K. moenkhausii with respect to foraging microhabitats. Feeding habits of the observed nektonic species were significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characidae; Habitat use; Resources; Upper Paraná. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200006 |
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| Silva,Alexandre Marco da; Casatti,Lilian; Alvares,Clayton Alcarde; Leite,Aline Maria; Martinelli,Luiz Antonio; Durrant,Steven F.. |
| Soil loss expectation and possible relationships among soil erosion, riparian vegetation and water quality were studied in the São José dos Dourados River basin, State of São Paulo, Brazil. Through Geographic Information System (GIS) resources and technology, Soil Loss Expectation (SLE) data obtained using the Universal Soil Loss Equation (USLE) model were analyzed. For the whole catchment area and for the 30 m buffer strips of the streams of 22 randomly selected catchments, the predominant land use and habitat quality were studied. Owing mainly to the high soil erodibility, the river basin is highly susceptible to erosive processes. Habitat quality analyses revealed that the superficial water from the catchments is not chemically impacted but suffers... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erosion modeling; Expectation of soil loss map; Riparian vegetation; Water quality. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400004 |
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| Castro,Ricardo M. C.; Casatti,Lilian; Santos,Hertz F.; Ferreira,Katiane M.; Ribeiro,Alexandre C.; Benine,Ricardo C.; Dardis,Gabriela Z. P.; Melo,Alex L. A.; Stopiglia,Renata; Abreu,Tatiana X.; Bockmann,Flávio A.; Carvalho,Murilo; Gibran,Fernando Z.; Lima,Flávio C. T.. |
| Foram amostrados 17 trechos de riachos com 100 m de extensão, todos de ordem igual ou menor a três, ao longo de ambas as margens do canal principal do Rio Paranapanema, SP e PR. O ponto médio de cada trecho foi georreferenciado via satélite com receptor GPS e o uso de metodologia padronizada de coleta de dados ambientais e peixes (baseada principalmente na pesca elétrica), possibilitou a obtenção das seguintes informações em cada local: 1) composição taxonômica da ictiofauna e contribuição, em termos de número de indivíduos e biomassa, de cada espécie para a ictiofauna local como um todo; 2) documentação fotográfica de espécimes representativos de cada espécie coletada com sua coloração natural; 3) descrição de cada ambiente coletado, com ilustrações... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacia do Alto Rio Paraná; Rio Paranapanema; Peixes de riacho; Diversidade; Sudeste e sul do Brasil. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032003000100007 |
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| Registros recuperados: 34 | |
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