Results 31 to 40 of about 924 (168)

Efeito do manejo alimentar no desempenho do matrinxã Brycon amazonicus em tanques de cultivo Effect of the feed management on performance of Matrinxã Brycon amazonicus in rearing ponds

Acta Amazonica, 2007
O objetivo deste estudo foi avaliar o efeito do horário, taxa e freqüência de alimentação no desempenho do matrinxã (Brycon amazonicus) em tanques de cultivo.
Célia Maria Frasca-Scorvo, Dalton Jose Carneiro, Euclides Braga Malheiros   +2 more
doaj   +2 more sources

Anthropogenic Barriers Limit Fish Access to Essential Habitats in the Amazon in the Face of Climate Change. [PDF]

Glob Chang Biol
Rivers across the Amazon Basin are increasingly threatened by climate change and dam construction, which restrict fish movements. We combined climate projections with river‐network connectivity analyses to identify where suitable habitats for frugivorous and socioeconomically important fish are likely to persist and where access may be lost due to ...
Yofukuji KY, Fabrin TMC, Stabile BHM, Agostinho AA, Jézéquel C, Batista-Silva VF, Esser LF, Ferreira JHD, Ré R, Tedesco PA, Azevedo JC, Bailly D.   +11 more
europepmc   +2 more sources

Importance and spatial patterns of invisible fisheries in Amazonian clear-water rivers as revealed by fisher knowledge and collaboration. [PDF]

Conserv Biol
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Silvano RAM, Vieira KC, Pereyra PER, Tomazoni-Silva LH, Alves IA, Bezerra JG, Dutra MCF, Keppeler FW, Nunes CB, Cunha CV, Hallwass G.   +10 more
europepmc   +2 more sources

Uso do selênio na dieta de matrinxã, "Brycon cephalus"

Revista Brasileira de Saúde e Produção Animal, 2007
O objetivo do presente trabalho foi avaliar os efeitos da inclusão de selênio (Se) na dieta em matrinxã, Brycon cephalus. Os peixes foram alimentados durante 60 dias com dietas contendo 1,5 mg de Se/kg de ração (grupo 1,5 Se) ou com uma ração livre de Se
Ana Lúcia Kalinin, Francisco Tadeu Rantin, Diana Amaral Monteiro   +2 more
doaj   +1 more source

Bioconcentration and Acute Intoxication of Brazilian Freshwater Fishes by the Methyl Parathion Organophosphate Pesticide. [PDF]

Biomed Res Int, 2015
Three species of freshwater Brazilian fishes (pacu, Piaractus mesopotamicus; piavussu, Leporinus macrocephalus, and curimbatá, Prochilodus lineatus) were exposed to an acute dose of 5 ppm methyl parathion organophosphate pesticide. Three to five individuals per species were exposed, one at a time, to 40 liters tap water spiked with Folidol 600 ...
de Salles JB, Lopes RM, de Salles CM, Cassano VP, de Oliveira MM, Bastos VL, Bastos JC.   +6 more
europepmc   +2 more sources

Effects of Dietary Aflatoxin B1 on Hybrid Grouper (<i>Epinephelus fuscoguttatus</i> ♀ × <i>Epinephelus lanceolatus</i> ♂) Growth, Intestinal Health, and Muscle Quality. [PDF]

Aquac Nutr
This study investigated the effects of varying doses of dietary aflatoxin B1 (AFB1) on the growth, intestinal health, and muscle quality of hybrid grouper. Four diets with varying AFB1 concentrations (0, 30, 445, and 2,230 μg kg−1) were used. Elevating AFB1 concentrations led to a decline in growth indexes, specifically the weight gain rate and the ...
Liu H, Xie R, Huang W, Yang Y, Zhou M, Lu B, Li B, Tan B, Dong X.   +8 more
europepmc   +2 more sources

Acute toxicity of nitrite to matrinxã, Brycon cephalus (Günther, 1869), (Teleostei-Characidae) [PDF]

Ciência Rural, 2004
Nitrite leads to many physiological and hematological disturbances followed by lethality. This work reports the lethal concentration of nitrite to juvenile matrinxã. Experiments were done at 24ºC, pH 6.7-7.0 under natural photoperiod.
Ive Marchioni Avilez, Lucia Helena de Aguiar, Alexandre Eneas Altran, Gilberto Moraes   +3 more
doaj   +1 more source

Effect of stocking density in plastic boxes without oxygenation on the transport of pirarucu, Arapaima gigas (Schinz, 1822)

Journal of the World Aquaculture Society, Volume 53, Issue 5, Page 1031-1041, October 2022., 2022
Abstract For the evaluation of the effects of the transport density of pirarucu juveniles, 210 juvenile pirarucus, Arapaima gigas (488 ± 26.5 g) were randomly distributed in 12 plastic boxes at transport densities of 98, 146, 195, and 244 g L−1. The transport was carried out on a paved highway for 4 h, and at the end of the transport, all were returned
Marcel J. M. Santos, Francisco O. Magalhães Jr., João V. Manhães, Itamar J. Soares Jr., Adenilson G. Silva, Ana P. Ramos, Marianne Schorer, Luis G. T. Braga   +7 more
wiley   +1 more source

Effects of Dietary Aflatoxin B1 on Hybrid Striped Bass (Morone chrysops × M. saxatilis) and Assessment of Supplemental Arginine as a Potential Aflatoxicosis Alleviator

Aquaculture Nutrition, Volume 2022, Issue 1, 2022., 2022
Aflatoxin contamination of feeds poses a significant threat to aquaculture. This six‐week study was conducted to evaluate the impact of aflatoxin B1 (AFB1) in diets with and without supplemental arginine (Arg) on the production performance, somatic indices, body composition, and immune responses of hybrid striped bass (HSB). Six experimental diets were
Yufan Zhang, Waldemar Rossi Jr., Fernando Y. Yamamoto, Alejandro M. Velasquez, Anli Wang, Delbert M. Gatlin III, Liqiao Chen   +6 more
wiley   +1 more source

Acute fluoxetine treatment increases aggressiveness in juvenile matrinxã (Brycon amazonicus) [PDF]

Fish Physiology and Biochemistry, 2016
Fluoxetine (FLX) is a selective serotonin (5-HT) reuptake inhibitor known for its effects modifying aggressiveness, personality traits, and anxiety-like behaviors. The aim of the present study was to evaluate the influence of the acute treatment, by immersion, with FLX on aggressive behavior of resident Brycon amazonicus fish.
Wolkers, Carla Patricia Bejo, Serra, Mônica, Barbosa Júnior, Augusto, Urbinati, Elisabeth Criscuolo   +3 more
openaire   +4 more sources