Results 61 to 70 of about 3,446 (190)
Journal of Fish Biology, EarlyView.Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros +6 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro +2 more
wiley +1 more source
Prescribed burning and fuel availability in wetlands of the Parana River, Argentina
Biodiversidade Brasileira, 2020 The Paraná River has a pulsatile hydrological regime alternating high and low waters. Normally the low water season is at the end of winter (August-September). In the flood plain there are islands formed by differentially deposited sediment, generating different topography, including a landscape pattern with: levees (higher), mid-slopes and lowlands of
Ernesto Segundo Massa +3 more
openaire +3 more sources
Review of Water Supply, Treatment and Distribution: Overcoming Challenges for Sustainable Management
Water and Environment Journal, EarlyView.ABSTRACT Water management faces increasing challenges driven by population growth, accelerated urbanization and climate change, demanding integrated and sustainable approaches to ensure the preservation of water resources. Water scarcity and rising demand intensify the vulnerability of various regions, threatening both water supply and environmental ...
André Linneo Tocchetto +5 more
wiley +1 more source
Tropical Zoology, 2020 The recently described catfish trichomycterid genus Cambeva comprises about 25 valid species, occurring mostly in river basins of south-eastern and southern Brazil. Fifteen species are endemic to the Paraná river basin, of which three are endemic to the
Axel M. Katz, Wilson J.E.M. Costa
doaj +1 more source
Tributaries as richness source for Oligochaeta assemblage (Annelida) of Neotropical dammed river
Brazilian Journal of BiologyTributaries may serve as richness source for the river main channel and the zoobenthos community is a good tool to verify this kind of pattern. In this study, we aimed to characterize the benthic invertebrate assemblage in three tributaries associated to
FH Ragonha +5 more
doaj +1 more source
Genetics and Molecular Biology, 1998 Hoplias malabaricus, the common trahira, extended its range into the Iguaçu River sometime in the last decades. To determine levels of genetic differentiation in neighboring basins of this nominal taxon, as well as to unveil the source of the invading ...
Jorge A. Dergam +6 more
doaj +1 more source
Brazilian Journal of Biology, 2003 The main objective of this study was a bio-economic survey of artisanal fishing so as to compare average profit of the fishermen, in two different environments (reservoirs and river) and seasons (dry and rainy).
Ceregato S. A., Petrere Jr. M.
doaj
Fish larvae from the upper Paraná River: do abiotic factors affect larval density?
Neotropical IchthyologyThe purpose of this study was to evaluate the role of abiotic factors on fish larvae occurrence. Samplings were carried out monthly at 12 stations (grouped in four areas) in the Amambaí, Ivaí and Paraná rivers and in the Itaipu Reservoir (upper Paraná ...
Gilmar Baumgartner +5 more
doaj +1 more source
Prospecting molecular markers to distinguish Cichla kelberi, C. monoculus and C. piquiti
Acta Scientiarum: Biological Sciences, 2015 Peacock bass, a fish of the genus Cichla, is an exotic species from the upper river Paraná floodplain in which the species Cichla kelberi and C. piquiti have been confirmed, coupled to the specie C.
Luciano Seraphim Gasques +4 more
doaj +1 more source