A5061132415- Aquaculture Nutrition and Growth
- Aquaculture disease management and microbiota
- Physiological and biochemical adaptations
- Environmental Toxicology and Ecotoxicology
- Fish biology, ecology, and behavior
- Phenothiazines and Benzothiazines Synthesis and Activities
- Marine and fisheries research
- Coastal and Marine Management
- High Altitude and Hypoxia
- Fish Biology and Ecology Studies
- Neurobiology and Insect Physiology Research
- Electrochemical Analysis and Applications
- Plant Ecology and Taxonomy Studies
- Algal biology and biofuel production
- Geological Studies and Exploration
- Coral and Marine Ecosystems Studies
- Botany and Plant Ecology Studies
- Reproductive biology and impacts on aquatic species
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquatic life and conservation
- Amphibian and Reptile Biology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Phytochemistry and Bioactivity Studies
Universidade Federal do Rio Grande
2016-2023
Institut Français de la Mer
2023
Continental (Canada)
2019
Universidade Federal da Bahia
2014
This study aimed to evaluate the effects of nitrate (NO3–N) in juvenile mullet freshwater. Experiment 1 evaluated LC50-96h fish at five different NO3–N concentrations (0.01, 85.32, 462.12, 851.25 and 955.25 mg L−1). 2 haematological oxidative stress variables exposed four 8.16, 33.83 52.66 L−1) for 5 days. The safe concentration 96 h was 60.61 L−1. In experiment 2, blood glucose values were lower subjected L−1 compared with other treatments on day 1. On 5, two highest had erythrocytes levels...
This study aimed to verify the effects of interaction between different temperatures (~18, ~23 and ~ 28°C) with dissolved oxygen levels (~2.0, ~4.5 7.0 mg O2 L-1) re-oxygenation rates (0.5 5 hr) after hypoxia in pacu (Piaractus mesopotamicus). In experiment 1, fish were exposed hypoxia, mild or normoxia at low, medium high temperature for 12 hr. 2, hr and, rapid gradual was performed a return achieved 0.5 blood glucose pH higher hypoxic treatment. The haematocrit erythrocyte values lower low...
The aim of this study was to evaluate the anaesthetic efficacy and effect sedation with tricaine (TMS®), also known as MS-222, on secondary oxidative stress parameters in juvenile tambaqui, Colossoma macropomum transported hyperoxia for 2, 6 10 hr. Juveniles were placed aquaria containing six different concentrations buffered (150, 180, 210, 240, 270 300 mg/L) times anaesthesia induction recovery determined. Fish hyperoxic conditions investigated glycemia, ionic concentration (K+, Ca++, Na+)...
The present study aimed to evaluate the effects of benzocaine and tricaine methanesulfonate on oxidative stress parameters juvenile tambaqui tissues. Fish (n=80) were anesthetized with (100 mg L-1) or (240 two control groups used (non-anesthetized fish exposed ethanol-only). After anesthetic induction 10 fish/anesthetic euthanized after 3, 12 24 hours post-anesthesia tissue samplings (gills, liver brain) performed. Samples submitted analyses enzyme activity glutathione-S-transferase (GST),...
Abstract This study investigated the secondary stress responses of Paralichthys orbignyanus exposed to ammonia and nitrite after recovery. Fish were 0.12, 0.28, 0.57 mg NH 3 ‐N/L, or 5.72, 10.43, 15.27 NO 2 ‐N/L for 10 d followed by same time length Ammonia‐ nitrite‐free water was used as a control treatment. Blood samples collected 1, 5, exposure presented lower higher glucose levels recovery, respectively. Ammonia induced initial transient ionic disturbances metabolic alkalosis. Nitrite...
O objetivo do presente estudo foi avaliar os efeitos da exposição a níveis subletais de amônia nos parí¢metros sanguíneos e qualidade carne juvenis pacu (Piaractus mesopotamicus). Além disso, também realizada avaliação desses pós-recuperação em água livre amônia. Os peixes (27,1 ± 5,4 g) foram expostos 0,0 (controle); 0,5 1,0 mg N-NH3 L-1 por 10 dias seguidos pelo mesmo tempo recuperação Ao final dos após o período coletadas amostras sangue para determinação glicose, lactato valores...
O presente trabalho tem como objetivo avaliar o impacto da atividade de dragagem aprofundamento do Porto Aratu sobre a estrutura comunidade ictioplanctônica. As coletas foram realizadas em 6 estações amostragem, tanto na maré enchente, quanto vazante, antes, durante e após dragagem. ictioplâncton foi coletado utilizando-se rede bongo, malha 500 μm, arrastos superficiais os parâmetros qualidade água (temperatura, salinidade, pH, oxigênio dissolvido, turbidez, amônia fósforo total) também...
Southern black drum ( Pogonias courbina ) is a species distributed along the western Atlantic Ocean, and it largest Sciaenidae observed in coast of Rio Grande do Sul state, Brazil. However, listed as vulnerable at The IUCN Red List Threatened Species™, their fishing prohibited. objective this study was to determine sperm characteristics P. . Sperm samples five young males (two-year-old fish) were collected through abdominal pressure. kinetics parameters motility (MOT) 10.7 ± 5.6%,...
This study evaluated the acute toxicity and sublethal effects of nitrite on oxidative stress parameters in early juvenile Brazilian flounder, Paralichthys orbignyanus. Fish were exposed to six concentrations nitrite: 20, 40, 80, 170, 330 550 mg NO2−N-L−1, plus a control with no added nitrite, all triplicate for 96 h. Every 24 h, tanks monitored check possible mortality estimate LC50. At end experiment, fish sampled analysis. All NO2−N-L−1 died within first The LC50 ranged from 427.8 393.1 h...
O objetivo desse trabalho foi avaliar o efeito combinado da temperatura e alimentacao sobre a taxa de excrecao amonia do piaussu. Os peixes (10,3 ± 1,7 g) foram aclimatados em um sistema recirculacao agua submetidos cinco temperaturas (15, 19, 23, 27 and 31°C), (duas vezes ao dia ate saciedade) regimes jejum diferentes. Nove por tratamento distribuidos individualmente tanques estimada 24 h, cada quatro horas, para os tratamentos animais alimentados jejum. Durante esse periodo consumo racao...