8 documents found, page 1 of 1
Ichthyofauna from floodplain lakes of Reserva de Desenvolvimento Sustentável Pi...
Morales, Bruno Ferezim; Ota, Rafaela Priscila; Silva, Victória Dandara Pereira E.; Deus, C. P.The ichthyofauna of the rio Purus has been little investigated, especially in its lower portion, characterized by diverse aquatic environments, especially in flooded areas. We inventoried the ichthyofauna of floodplain lakes with different management efforts in Reserva de Desenvolvimento Sustentável Piagaçu-Purus (RDS-PP), which represent important resource for commercial fishing in North region, in the first i...
Simultaneous abrupt shifts in hydrology and fish assemblage structure in a floo...
Röpke, Cristhiana Paula; Amadio, Sidinéia Aparecida; Zuanon, Jansen; Ferreira, Efrem J.G.; Deus, C. P.; Pires, Tiago H.S.; Winemiller, Kirk O.Combined effects of climate change and deforestation have altered precipitation patterns in the Amazon. This has led to changes in the frequency of extreme events of flood and drought in recent decades and in the magnitude of the annual flood pulse, a phenomenon that influences virtually all aspects of river-floodplain ecosystem dynamics. Analysis of long-term data revealed abrupt and synchronous changes in hyd...
Diet of five species of Hemiodontidae (Teleostei, Characiformes) in the area of...
Silva, Cylene C. da; Ferreira, Efrem J.G.; Deus, C. P.The diet of five species of Hemiodontidae (Hemiodus argenteus (Pellegrin, 1908), H. atranalis (Fowler, 1940), H. immaculatus (Kner, 1858), H. microlepis (Kner, 1858) e H. unimaculatus (Bloch, 1794)) from the area of influence of the Balbina Reservoir, Uatumã River, northern Brazil, was investigated. Fish were collected bimonthly from April 2005 to February 2007 in four places, two in the reservoir (upstream the...
Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
Duarte, Cleber; Py-daniel, Lúcia Rapp; Deus, C. P.Fish assemblages from two sandy beaches in the lower Purus river (Amazonas, Brazil) were compared. Four sampling groups were represented by: day and night samples in sandy beach inside the Reserva Biológica de Abufari (biological reserve) and day and night samples in the Reserva de Desenvolvimento Sustentável Piagaçu-Purus (sustainable development reserve). Samples were collected during low water levels (Novemb...
Diet of Bryconops alburnoides and B. caudomaculatus (Osteichthyes: Characiforme...
Silva, Cylene C. da; Ferreira, Efrem J.G.; Deus, C. P.The study of fish diet and its interaction with the environment provides important data on ecology and behavior, as fish face varying environmental and food availability conditions. The aim of the present study was to determine the diet of Bryconops caudomaculatus and Bryconops alburnoides, as well as to assess its seasonal variation, within the area influenced by Balbina Hydroelectric Dam (BHD), in the Uatumã ...
Most species are not limited by an Amazonian river postulated to be a border be...
Santorelli, Sergio; Magnusson, William Ernest; Deus, C. P.At broad scales in the Amazon, it is often hypothesized that species distributions are limited by geographical barriers, such as large rivers (river-barrier hypothesis). This hypothesis has been used to explain the spatial-distribution limits of species and to indicate endemism areas for several phylogenetic lineages. We tested the ability of the river-barrier hypothesis to explain patterns of species diversity...
Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in ...
Deus, C. P.; Petrere, MiguelWe analyzed the stomach contents of 116 individuals belonging to seven fishes species in order to investigate seasonal changes in feeding strategy and how trophic interactions between species affect community structure in an Atlantic rainforest stream in Southeastern Brazil. Oligosarcus hepsetus and Pimelodus sp. consumed fewer items during the winter. Phalloceros caudimaculatus switched feeding habits from det...
Seasonal diet shifts of seven fish species in an Atlantic rainforest stream in ...
Deus, C. P.; Petrere-Junior, M. [UNESP]Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:42:10Z No. of bitstreams: 1 S1519-69842003000400005.pdf: 98914 bytes, checksum: 0009d59e184e10284eea324d7afc61eb (MD5); Made available in DSpace on 2013-08-22T18:42:10Z (GMT). No. of bitstreams: 1 S1519-69842003000400005.pdf: 98914 bytes, checksum: 0009d59e184e10284eea324d7afc61eb (MD5) Previous issue date: 2003-11-01; Made available ...