Results 21 to 30 of about 1,225 (184)

Oxitetraciclina para marcação quí­­mica de juvenis de piava Leporinus obtusidens: determinação de doses e duração do tratamento

open access: yesBoletim do Instituto de Pesca, 2018
O objetivo deste estudo foi definir concentrações e tempos de imersão para a marcação quí­­mica de juvenis de Leporinus obtusidens por meio de oxitetraciclina (OTC).
Mariana Roza de ABREU   +3 more
doaj   +1 more source

Cross species amplification and characterization of microsatellite markers in Leporinus friderici (Characiformes, Anostomidae) [PDF]

open access: yesCiência Rural, 2020
: Leporinus friderici is a migratory neotropical fish with elevated ecological and economic importance in Brazil. Microsatellite markers are highly important in population genetic studies, management, and conservation programs; however, no markers are ...
Caio Felipe da Silva   +5 more
doaj   +1 more source

Hematological and Histopathological Changes of Juvenile Grass Carp (Ctenopharyngodon idella) Exposed to Lethal and Sublethal Concentrations of Roundup (Glyphosate 41% SL)

open access: yesAquaculture Research, Volume 2023, Issue 1, 2023., 2023
The presence of pesticides and their potential toxic effects on fish can pose a threat to aquatic ecosystems and human health. The present study aimed to evaluate the effect of commercial formulations of glyphosate (Roundup) on the survival rate, hematological parameters, and tissues (gills and liver) of juvenile grass carp (Ctenopharyngodon idella ...
Dariush Azadikhah   +6 more
wiley   +1 more source

From fresh water to the slope: fish community ecology in the Río de la Plata and the sea beyond [PDF]

open access: yes, 2010
The spatial pattern of fish assemblages and its relationship with factors along an environment gradient, from fresh to marine water environment along the Río de la Plata estuary (36ºS, 56ºW) the shelf and part of the slope, was examined using data from ...
García, Mirta L.   +2 more
core   +8 more sources

Caracterización microbiológica y fisicoquímica de carne de boga (Leporinus obtusidens) impregnada con jugo de limón

open access: yesActa Agronómica, 2021
La carne de pescado es altamente perecedera y microbiológicamente sensible. Este trabajo tuvo como objetivo caracterizar la carne de boga (Leporinus obtusidens) y evaluar el efecto de impregnación a vacío con jugo de limón en sus características microbiológicas y fisicoquímicas.
Elisa Fernanda Naef   +5 more
openaire   +2 more sources

A new species of Leporinus Agassiz, 1829 from the upper Rio Paraná basin (Characiformes, Anostomidae) with redescription of L. elongatus Valenciennes, 1850 and L. obtusidens (Valenciennes, 1837)

open access: yesPapéis Avulsos de Zoologia, 2012
Leporinus obtusidens Valenciennes, 1837 and L. elongatus Valenciennes, 1850 are redescribed based on the type specimens, including those of their junior synonyms, and recently collected specimens.
Heraldo A. Britski   +2 more
doaj   +1 more source

Predicted impacts of proposed hydroelectric facilities on fish migration routes upstream from the Pantanal wetland (Brazil)

open access: yesRiver Research and Applications, Volume 36, Issue 3, Page 452-464, March 2020., 2020
Abstract There are 104 hydroelectric facilities proposed to be installed in the watersheds that feed the Pantanal, a vast floodplain wetland located mostly in Brazil. The Pantanal is host to 23 long‐distance migratory fish species that ascend upland tributaries to spawn.
Marcel Medinas de Campos   +5 more
wiley   +1 more source

Composição corporal e crescimento de juvenis de piava alimentados com dietas contendo farinhas de trigo e milho submetidas ao cozimento Body composition and growth of piava juveniles fed with diets containing corn and wheat flours submitted to the cooking

open access: yesCiência Rural, 2007
Neste trabalho, foi avaliado o efeito do cozimento das farinhas de milho e trigo na composição corporal e crescimento de piavas. Foram utilizados 300 juvenis (peso no médio inicial=8,03 ± 0,02g), alimentados durante 60 dias, uma vez ao dia (3%PV).
Rafael Lazzari   +8 more
doaj   +1 more source

Substituição de fígado bovino por glúten de milho, glúten de trigo e farelo de soja em rações para pós-larvas de piavas (Leporinus obtusidens) [PDF]

open access: yesCiência Rural, 2005
Este trabalho foi realizado em duas etapas, com o objetivo de avaliar o efeito dos glutens de milho e trigo, e do farelo de soja, em substituição ao fígado bovino no crescimento de pós-larvas de piava (Leporinus obtusidens).
Jorge Eugenio da Silva Filipetto   +5 more
doaj   +1 more source

FATOR DE CONDIÇÃO RELACIONADO A ASPECTOS REPRODUTIVOS DA PIAPARA (Leporinus obtusidens) (Characiformes: Anostomidae) COLETADAS A JUSANTE DA USINA HIDRELÉTRICA DO FUNIL, MINAS GERAIS, BRASIL

open access: yesCiência Animal Brasileira, 2011
This study aimed to describe the seasonal variation of condition factor (K) correlated with gonadossomatic (GSI) and hepatossomatic index (HSI) of Leporinus obtusidens (Valenciennes, 1837), collected downstream of the Hidroelectric Power Station of Funil,
VIVIANE DE OLIVEIRA FELIZARDO   +5 more
doaj   +2 more sources

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