Search Results - "Piana, Pitágoras Augusto"
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Functional responses of stream fish communities to rural and urban land uses
Published in Neotropical Ichthyology (01-01-2021)“…Abstract We tested the effects of ruralization and urbanization on the functional diversity indices and the composition of functional traits of Neotropical…”
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Contribution of the CASA system, based on open source software, to the assessment of sperm characteristics: informetric and usage-based approaches
Published in Revista brasileira de zootecnia (01-07-2017)“…ABSTRACT By using informetric tools, we evaluated the contribution and impact of the open source computer-assisted sperm analysis (CASA) software on sperm…”
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3
The panorama of artisanal fisheries of the Araguaia River, Brazil
Published in Fisheries science (01-05-2015)“…Seasonal changes in composition and yield of artisanal fishery catches may occur due to natural fluctuations in hydrological regime, fishers, and gear used. In…”
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4
Does seed dispersal mode matter?
Published in Plant ecology (01-06-2022)“…Zoochory is fundamental for habitat colonization by plants with large and heavy seeds, such as Araucaria angustifolia . Recruitment by this endangered South…”
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5
Effects of the spermatozoa: oocyte ratio, water volume and water temperature on artificial fertilization and sperm activation of cascudo-preto
Published in Revista brasileira de zootecnia (01-01-2013)“…The objective of this study was to evaluate the effects of water volume and water temperature on the sperm motility duration and the number of spermatozoa, and…”
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A long-term study on the larval distribution of the migratory fish Salminus brasiliensis (Characiformes: Bryconidae) in a dam-free section of the Paraná River, Brazil
Published in Environmental biology of fishes (01-04-2023)“…The objective of this study was to use larval density data to investigate the temporal reproductive pattern and use of different biotopes of the Paraná River…”
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The influence of aquaculture on the hydro-geochemistry of a neotropical aquatic system
Published in Aquaculture (25-02-2021)“…Pollution in the aquatic ecosystem is a central theme in ecological research. We investigated the hydrogeochemical characteristics of the Sa?o Francisco…”
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8
Length-weight and length-length relationships of 10 fish species from headwater streams of the lower Iguassu River basin, Brazil
Published in Zoologia (Curitiba, Brazil) (2024)“…Length-weight (LWR) and length-length (LLR) relationships are widely used in management programs and monitoring of fish stocks. We estimated the LWR and LLR of…”
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Non-native fish species are related to the loss of ecological integrity in Neotropical streams: a multimetric approach
Published in Hydrobiologia (01-07-2018)“…The use of multimetric indices (MMIs) became a common practice for evaluating ecological integrity of aquatic ecosystems. However, most developed MMIs ignore…”
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Artificial fertilization of oocytes and sperm activation in pacu: effects of the spermatozoa:oocyte ratio, water volume, and in natura semen preservation
Published in Revista brasileira de zootecnia (01-01-2011)“…The objective of this work was to investigate artificial fertilization and the duration of sperm motility in pacu with different insemination doses, water…”
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11
Influences of water and sediment quality on benthic macroinvertebrates in a river with different land use types
Published in Water, air, and soil pollution (01-09-2022)“…Rivers are influenced by surrounding environmental factors, especially land use and occupation type in their watersheds, which affect the integrity of the…”
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12
Arms as areas for larval development of migratory fish species in a Neotropical reservoir and the influence of rainfall over abundances
Published in Journal of fish biology (01-11-2020)“…The aim of the present study was to verify the use of the arms of the Itaipu Reservoir as areas of initial development for migratory fish species and to assess…”
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13
Unified Multimetric Index for the Evaluation of the Biological Condition of Streams in Southern Brazil Based on Fish and Macroinvertebrate Assemblages
Published in Environmental management (New York) (01-11-2019)“…We developed MMI models that combine responses of fish and benthic macroinvertebrates for the evaluation of the biotic integrity of streams. The MMI was…”
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14
Fish reproductive activity reveals temporal variations predominating spatial heterogeneity in maintaining high functional diversity of a Neotropical reservoir
Published in Ecology of freshwater fish (01-01-2022)“…The reproductive activity of the fish assemblage in a large Neotropical reservoir was evaluated by surveying the occurrence of ichthyoplankton in response to…”
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15
Delirium during Weaning from Mechanical Ventilation
Published in Critical Care Research and Practice (01-01-2014)“…Background. We compare the incidence of delirium before and after extubation and identify the risk factors and possible predictors for the occurrence of…”
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16
Fish functional biotic simplification in a Neotropical reservoir: An approach from the ichthyoplankton
Published in Ecology of freshwater fish (01-10-2023)“…Ecosystem services provided by communities are related to the diversity of functional traits, and biotic functional simplification occurs when this diversity…”
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Morphological differentiation among migratory fish species from the Paraná River basin
Published in Biota neotropica (01-12-2012)“…This study characterized the morphological differences among migratory fish species from the Paraná River Basin. A total of 177 adult fish of Leporinus…”
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Egg transport and larval behavior of curimba, Prochilodus lineatus (Valenciennes, 1836; Characiformes, Prochilodontidae) in a drift simulator channel
Published in Acta scientiarum. Biological sciences (28-10-2022)“…Landscape changes and hydrologic alterations associated with dam construction have greatly hindered reproductive success and the recruitment of migratory…”
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19
Comparison of fish and macroinvertebrates as bioindicators of Neotropical streams
Published in Environmental monitoring and assessment (2016)“…The biomonitoring of aquatic ecosystems in developing countries faces several limitations, especially related to gathering resources. The present study aimed…”
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Optimization of the sperm:oocyte ratio and sperm economy in the artificial reproduction of Rhamdia quelen using fructose as a sperm motility modulator
Published in Animal reproduction science (01-10-2015)“…This research was conducted to evaluate the effects of fructose as a modulator of sperm motility and its effects on the reduction in number of sperm cells in…”
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