Stress in Pimelodus maculatus (Siluriformes: Pimelodidae) at different densities and times in a simulated transport

Braun, Neiva; Nuñer, Alex Pires de Oliveira

doi:10.1590/s1984-46702014000100012

Cited by 13 publications

(5 citation statements)

References 17 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fish density during transport is an important factor because high densities correspond to lower costs. However, if density increase causes mortality or a high degree of stress that may com-promise fish health, high density turns out not to be economically viable (Carneiro and Urbinati 2002;Gomes et al 2003;Urbinati et al 2004;Braun and Nuñer 2014). In all situations of fish transport, it must be acknowledged that the transport of ornamental fish has some peculiarities.…”

Section: Characterization Of the Variability In The Processes Of Livementioning

confidence: 99%

An overview of stress physiology of fish transport: changes in water quality as a function of transport duration

2016

View full text Add to dashboard Cite

This study brings an integrated analysis about the relationship between water deterioration and its physiological consequences in live fish transport. The analysis was focused on the transport water and its deterioration, and physiological challenges imposed on the fish. Usual commercial handling procedures employed to mitigate fish stress during transport were discussed. Future topics of research for the establishment of safer fish transport protocols were proposed. Transport was classified into short (≤8 h) or long transport (>8 h). The main issue in short transports should be the prevention of water pH reduction, while in long transports it is the increase in ammonia. Plasma cortisol is the most employed marker for stress and is acutely elevated upon short episodes of transport, but remains elevated even in long‐transport events. Plasma glucose is perhaps a better marker for handling stress. Plasma lactate, pH, osmolality CO2 and ions should be more often evaluated. Plasma Na+ and Cl‐ are very useful markers of acidosis, due to their respective exchange for H+ and HCO3−, for acid–base regulation. The establishment of species‐specific transport protocols should be preceded by such combined analyses of water and physiological parameters.

show abstract

Section: Characterization Of the Variability In The Processes Of Livementioning

confidence: 99%

An overview of stress physiology of fish transport: changes in water quality as a function of transport duration

2016

View full text Add to dashboard Cite

show abstract

“…The transportation of live fish, from tanks and ponds to other places is routinely done in aquiculture (Braun & Nuñer, 2014); however, it can result in great economic losses, especially as it takes place during the early stages of life and could potentially lead to high mortality (Okamura et al, 2007). High mortality rates often result from the exposure of fish to several stimuli, which in turn triggers a series of physiological responses (Urbinati, Abreu, Silva Camargo, & Parra, 2004), making the identification of a single stressful element difficult in routine fishes activities (Carneiro, Kaiseler, Swarofsky, & Baldisserotto, 2009).…”

Section: Introductionmentioning

confidence: 99%

<b>Water quality and survival rate of <i>Rhamdia quelen</i> fry subjected to simulated transportation at different stock densities and temperatures

Bittencourt

Damasceno

Lui

et al. 2018

Acta Sci. Anim. Sci.

View full text Add to dashboard Cite

ABSTRACT. Transportation of live fish is routinely done in aquaculture; therefore, the aim of this study was to analyze the water quality and survival rate of Rhamdia quelen fry (2.55±0.44 g) following 4, 8 and 12h of simulated transportation, at stock densities of 30 and 60 fry 5 L -1 and temperatures 15, 20 and 25 o C. Dissolved oxygen, pH, electrical conductivity, total ammonia, nitrite, nitrate, turbidity, total alkalinity and survival were analyzed. Temperature and time had a significant influence on ammonia, pH, electrical conductivity, and dissolved oxygen levels, and fish died after 12 hours of transportation simulation when kept at 20 and 25ºC. The density directly affected the water quality parameters, such as the increase in electrical conductivity and turbidity, and decrease in dissolved oxygen and pH at the density of 60 fish 5 L -1 . In conclusion, the transportation of R. quelen fry should be carried out at temperatures between 15 and 25°C, for periods of less than 12 hours, and at stock density of up to 6 fish per liter of water so as not to impair the homeostasis of the fry, and consequently, their survival.Keywords: aquaculture; ammonia; loading densities; management; mortality.Qualidade de água e sobrevivência de alevinos de Rhamdia quelen submetidos a transporte simulado em diferentes densidades e temperaturas RESUMO. O transporte de peixes vivos é uma prática comum na aquicultura. Por isso, o objetivo do presente trabalho foi analisar a qualidade de água e sobrevivência de alevinos Rhamdia quelen (2,55±0,44 g) seguindo 4, 8 e 12h de transporte simulado, em densidades de 30 e 60 peixes 5 L -1 e em temperaturas de 15, 20 e 25 o C. Foram analisados: oxigênio dissolvido, pH, condutividade elétrica, amônia, nitrito, nitrato, turbidez, alcalinidade e sobrevivência. A temperatura e o tempo tiveram influência significativa nos níveis de amônia, pH, condutividade elétrica e oxigênio, e verificou-se mortalidades após 12 horas de simulação de transporte nos peixes mantidos a 20 e 25ºC. A densidade influenciou diretamente nos parâmetros de qualidade de água, tais como o aumento da condutividade elétrica e turbidez e a diminuição de oxigênio dissolvido e pH na densidade de 60 peixes 5 L -1 . Em conclusão, recomenda-se o transporte de alevinos de R. quelen em temperaturas entre 15 e 25°C, em períodos inferiores a 12 horas. E a densidade de seis peixes por litro de água não compromete a homeostase dos alevinos, e consequentemente sua sobrevivência.

show abstract

“…Transport of live fish is a common practice in fish farming for various purposes, such as reproduction, transfers to other places of cultivation, and commercialization (Braun & Nuñer, 2014). According to King (2009), the salmon industry in Tasmania annually displaces over 9 million Atlantic salmon juveniles from its larviculture on the mainland to the ocean fattening areas by land transport in trucks, essential for the development of the entire production chain.…”

Section: Introductionmentioning

confidence: 99%

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

Santos

Magalhães

Manhães

et al. 2022

J World Aquaculture Soc

View full text Add to dashboard Cite

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 À1 . The transport was carried out on a paved highway for 4 h, and at the end of the transport, all were returned to the laboratory. After transport (AT), 8 fish from each experimental unit were transferred to 12 tanks (250 L) for the final samplings. Blood was sampled at three different times: immediately a AT, 24, and 48 h after transportation. The survival and hematocrit, cortisol, glucose, and lactate were measured. The results showed significant differences (p < 0.05) for all blood parameters, and there was no mortality throughout the experiment. At the end of the analysis, pirarucus were able to be transported at a density of 244 g L À1 for up to 4 h in open systems without oxygenation, recovering from stress until 48 h AT.

show abstract

Stress in Pimelodus maculatus (Siluriformes: Pimelodidae) at different densities and times in a simulated transport

Cited by 13 publications

References 17 publications

An overview of stress physiology of fish transport: changes in water quality as a function of transport duration

An overview of stress physiology of fish transport: changes in water quality as a function of transport duration

<b>Water quality and survival rate of <i>Rhamdia quelen</i> fry subjected to simulated transportation at different stock densities and temperatures

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

Contact Info

Product

Resources

About