A5031513862- Aquaculture Nutrition and Growth
- Aquaculture disease management and microbiota
- Crustacean biology and ecology
- Fish biology, ecology, and behavior
- Environmental Toxicology and Ecotoxicology
- Reproductive biology and impacts on aquatic species
- Aquatic life and conservation
- Marine Bivalve and Aquaculture Studies
- Marine and fisheries research
- Invertebrate Immune Response Mechanisms
- Innovations in Aquaponics and Hydroponics Systems
- Ocean Acidification Effects and Responses
- Fish Biology and Ecology Studies
- Physiological and biochemical adaptations
- Aldose Reductase and Taurine
Universidade Federal do Rio Grande
2015-2024
Universidade Federal do Paraná
2021
University of Rio Grande and Rio Grande Community College
2013-2015
Universidade Federal do Rio Grande do Sul
2013-2014
Shrimp production in biofloc systems generates excess organic matter that must be removed from the system. Due to its ability consume natural productivity, integration of tilapia shrimp culture could help reduce levels total suspended solids The present study aimed evaluate two stocking densities an integrated with Litopenaeus vannamei reared a pilot-scale Two were tested, 35 and 65 fish m -3 recirculating system 10 3 tanks for 4 water recirculation 965.66 ± 92.83 L h -1 during 78 days....
The biofloc culture system (BFT) allows for the production of aquatic animals at higher stocking densities compared to conventional aquaculture systems and it has been proven be efficient shrimp (Litopenaeus vannamei) mullet (Mugil liza) rearing. Accumulation nutrients enhances natural productivity system, thus concentration total suspended solids (TSS) tends accumulate during cycle, which can deteriorate water quality performance produced. Integrated multi trophic (IMTA) performed in single...
The White Shrimp (Litopenaeus vannamei) is reared in several types of systems. Changes pH some can produce sub-lethal effects that result poor growth and survival. aim the present study was to determine acidic basic 50% lethal limits after 96 h exposure (pH50–96 h) evaluate on oxidative stress parameters juvenile L. vannamei. experimental design comprised nine treatments with three replications each. consisted 10.5, 10.0, 9.5, 9.0, 7.0, 5.0, 4.5, 4.0 3.5. treatment at 7.0 used as control....
The aim of this study was to determine the effects nitrite on growth and survival white shrimp L. vannamei in two different salinities. Nitrite concentrations tested salinity 8 g/L were 0 (control), 2.5, 5.0, 10.0, 20.0 mg NO2−-N/L, 24 20.0, 40.0 NO2−-N/L. For these experiments, 30 experimental units with L useful volume stocked 20 juvenile (8.0 ± 0.50 g), corresponding a stocking density 100 shrimp/m2, cultivated for an period days. A significant difference found between control treatment...
This study evaluates the effects of previous addition sodium nitrite (NaNO2) and biofilm in a Litopenaeus vannamei biofloc culture.Five treatments were tested 180 L -tanks: NaNO2 (-20) for 20 days before stocking without artificial substrates; NaNO2+B stocking, with 150% additional (Stocking) at no +B substrates and; Control, substrates.The was carried out two phases: shrimps (0.21 ± 0.08 g) stocked density 400 ind m -2 /1,100 -3 , 30 (nursery).After this period, animals restocked lower (120...
ABSTRACT: Different technologies have been developed to improve the performance of Litopenaeus vannamei in low salinity, mainly super-intensive systems like recirculation and BFT (Biofloc Technology System) systems. However, there is an accumulation toxic nitrogenous compounds shrimps such as nitrate, that at high concentrations depending on salinity culture water can be lethal. Acute toxicity tests allow analyze relationship between compound other abiotic or biotic variables. The aim this...
The pink shrimp Farfantepenaeus brasiliensis is native in southern Brazil and potentially suited for aquaculture. Under intensive culture, the accumulation of nitrogenous compounds results from excretion by processes feed decomposition nitrification. objective this study was to evaluate ammonia, nitrite, nitrate toxicity effects on oxygen consumption juvenile shrimp. Shrimps (initial weight 0.7 ± 0.15 g) were exposed over a period 30 days 50%, 100%, 200% safe levels total ammonia (TAN = 0.88...
ABSTRACT: Litopenaeus vannamei is the most cultured marine shrimp in all types of systems including Bioflocs Technology System (BFT). are formed by microorganisms, among these, autotrophic bacteria responsible for nitrification process. This study aimed to identify and promote development nitrifying adding artificial substrates biofloc inoculum L. culture a BFT system. The experiment consisted four treatments with three replics (4x3) as follows: (1) Control: clear water which bioflocs were...
Elevated concentrations of dissolved carbon dioxide (CO2) and reduced pH levels are observed during the culture transportation aquatic organisms. Studies on toxicity effects CO2 in penaeid shrimp scarce when compared to amount research fish. The objective present study was determine lethal concentration safety for juvenile white Litopenaeus vannamei. Juveniles (1.76 ± 0.36 g) were exposed 96 h one six (14.5, 23.8, 59.0, 88.0, 115.0, 175.0 mg/L) or a control condition (without addition CO2),...
Os experimentos foram realizados para investigar os efeitos da amônia, nitrito e nitrato no consumo alimentar de juvenis Farfantepenaeus brasiliensis. camarões com peso médio 4g aclimatados durante 28 dias em diferentes concentrações crônicas nitrato. Após o período exposição dias, 20 por tratamento individualizados unidades experimentais 3 L, a fim ser analisado ração função quantidade alimento oferecido as sobras um 24 horas. O apresentou alterações significativas (P<0,05) expostos às...