Buscar
Mostrando ítems 11-20 de 2758
Morphological evolution of the Maipo River in central Chile: Influence of instream gravelmining
(2018)
Instream gravel mining is one of the most important causes of channel degradation in South America, specifically in rivers located near large metropolitan areas with rapidly growing cities, where no river management ...
The Ecogeomorphology Of An Andean River System, Chile
(2019)
Ecogeomorphology is an interdisciplinary approach to the study of river systems, and
26 one that integrates hydrology, geomorphology and ecology. Fluvial geomorphology
27 provides an initial starting point for characterizing ...
Spatiotemporal variations in channel changes caused by cumulative factors in a meandering river: The lower Peixe River, Brazil
(Elsevier B.V., 2016-11-15)
Channel changes in meandering rivers naturally exhibit complex behaviour, and understanding the river dynamics can be challenging in environments also subject to cumulative human impacts. Planform changes were analysed on ...
The Maipo River as a biogeographical barrier to Liolaemus monticola (Tropiduridae) in the mountain ranges of central Chile
(1997)
Univariate and multivariate statistical analyses of 39 meristic characters recorded for 12 samples of the lizard Liolaemus monticola were used to compare geographical variation in morphology with chromosomal races north ...
FLUVIAL FORMS AND PROCESSES ASSOCIATED TO MEANDERING CHANNEL PATTERN: THE LOWER PEIXE RIVER, SP
(Uniao Geomorfologia Brasileira, 2016-07-01)
The aim of this study is to identify and characterize forms and processes associated to the meandering channel pattern in the alluvial valley of the Lower Peixe River, Sao Paulo State, Brazil. Geomorphological interpretations ...
A New Species of Cosmetocleithrum (Monogenea, Dactylogyridae), a Gill Parasite of Trachelyopterus galeatus (Siluriformes, Auchenipteridae) from Brazil, with Notes on the Morphology of Cosmetocleithrum striatuli
(2017-07-01)
The present study describes a new species of Cosmetocleithrum Kritsky, Thatcher and Boeger, 1986 from the gills of the catfish Trachelyopterus galeatus (Linnaeus, 1766) from the mouth of the Aguapeí River, municipality of ...
Geomorphologic units of the Middle São Francisco River alluvial plain, Northeastern BrazilUnidades geomorfológicas da planície aluvial do Médio Rio São Francisco, Nordeste do Brasil
(2022-01-01)
The Sao Francisco rivers is the largest river draining the cratonic areas of Cerrado savanas and semiarid Caatinga environments in NE Brazil. This study presents the first geomorphologic map of the Middle Sao Francisco ...
Morphological characterization of blood cells in Amazon River dolphin Inia geoffrensis: a case study
(Pontificia Universidad Católica de Valparaíso, 2023)
Inia geoffrensis is an endangered species of the Amazon River basin, but there has been limited research regarding its health, particularly in describing normal cell morphology by traditional techniques. This study aimed ...