Ammonia and pH effects on some metabolic parameters and gill histology of silver catfish, Rhamdia quelen (Heptapteridae)

Miron, Denise dos Santos; Moraes, Bibiana Silveira; Becker, Alexssandro Geferson; Crestani, Márcia; Spanevello, Rosélia Maria; Loro, Vânia Lúcia; Baldisserotto, Bernardo

doi:10.1016/j.aquaculture.2008.02.023

Cited by 114 publications

(79 citation statements)

References 25 publications

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“…The accumulation of CO 2 reduces the water pH, decreasing the proportion of NH 3 in relation to NH 4 + (Grøttum et al, 1997). In R. quelen, ammonia toxicity is pH-dependent (Miron et al, 2008); however, the pH levels observed in the present study (6.3 to 7.53) had no significant (p > 0.05) influence on ammonia toxicity and, therefore, did not have a negative impact on fish survival.…”

Section: Discussioncontrasting

confidence: 50%

Water quality and survival rate of Rhamdia quelen fry subjected to simulated transportation at different stock densities and temperatures

Bittencourt

Damasceno

Lui

et al. 2018

Acta Sci. Anim. Sci.

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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.

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Section: Discussioncontrasting

confidence: 50%

Water quality and survival rate of Rhamdia quelen fry subjected to simulated transportation at different stock densities and temperatures

Bittencourt

Damasceno

Lui

et al. 2018

Acta Sci. Anim. Sci.

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“…These lesions in gills were similar to those observed by other authors for other species exposed to NH 3 (SPENCER et al, 2008;DONG et al, 2013;ROUMIEH et al, 2013). MIRON et al (2008) reported severe damage to the gills in R. quelen, as fusion of secondary lamellae when animals were exposed to changes in pH and different concentrations of ammonia.…”

Section: Discussionsupporting

confidence: 76%

“…MARTINEZ et al (2004) reported that the mean LC50 values (24 h) of NH 3 to Astyanax altiparanae, Piaractus mesopotamicus and Prochilodus lineatus are 0.66, 0.85 and 0.74 mg L -1 , respectively. In Rhandia quelen, LC50 in 96 h and pH 6.0 was 0.44 mg L -1 of NH 3 (MIRON et al, 2008). BENLI and KÖKSAL (2005) reported that the lethal concentration of NH 3 (48 hours) to juvenile Oreochromis niloticus was 7.4 mg L -1 and, therefore, that tilapia is very tolerant to due to degradation and cytoplasmic vacuolization (POLEKSIC and MITROVIC-TUTUNDZIC, 1994).…”

Section: Discussionmentioning

confidence: 99%

“…It may be caused by physical occlusion of small or large vessels or by failure of the normal flow (JONES et al, 2000). MIRON et al (2008) reports a reduction in liver glycogen in catfish after exposure to NH 3 caused by stress due to its toxicity. The glycogen is therefore used in response to stress conditions (MILNE et al, 2000;VIJAYAVEL et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…High levels of ammonia reduce blood pH due to the accumulation of acidic metabolites, causing swelling and melting of the lamellae in the gills and interfering in the osmoregulation processes (LEASE et al, 2003;LIEW et al, 2013). Also, gill lesions (SPENCER et al, 2008;MIRON et al, 2008) and decrease on liver volume (MILNE et al, 2000) may occur when some species are over exposed to ammonia.…”

Section: Introductionmentioning

confidence: 99%

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Análise histológica das brí¢nquias e do fígado de Bryconops caudomaculatus em diferentes concentrações de amônia

2017

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The objective was to evaluate the effects of different concentrations of ammonia (zero; 0.15; 0.30; 0.50; 1.00 mg L -1 NH3) on histology and morphology of gills and liver of juvenile Bryconops caudomaculatus. After 96 hours of exposure, the fishs were anesthetized and necropsied for collect gills and liver, which were embedded in paraffin. Morphological changes were observed on the secondary lamellae of the gills when concentrations greater than 0.15 mg L -1 , as hyperplasia, hypertrophy, epithelial displacement, lamellar fusion, swelling, lamellar aneurysm with rupture of the epithelium and increase in width of the lamellae were observed. The liver presented histopathologies (congestion in the capillaries and inflammatory processes) at the presence of 0.30 mg L -1 of NH3, compromising the vital functions, the metabolism, breathing processes, detoxification of the body, hematopoiesis and probably hindered osmoregulation. The results suggest that the changes in gill and liver can be used to monitor fish performance in intensive farming.Key words: morphological changes; contaminants; histology; toxicity. ANÁLISE HISTOLÓGICA DAS BRÂNQUIAS E DO FÍGADO DE Bryconops caudomaculatus EM DIFERENTES CONCENTRAÇÕES DE AMÔNIA RESUMOO objetivo foi avaliar os efeitos de diferentes concentrações de amônia não ionizada (zero; 0,15; 0,30; 0,50; 1,00 mg L -1 NH3) na histologia e morfologia das brânquias e fígado de juvenis Bryconops caudomaculatus. Após 96 horas de exposição, os peixes foram anestesiados, submetidos à necropsia, para coleta de brânquias e fígado, que foram incluídos em parafina. Alterações morfológicas nas lamelas secundárias das brânquias foram observadas em concentrações a partir de 0,15 mg L -1 , como hiperplasia, hipertrofia, deslocamento epitelial, fusão lamelar, edema, aneurisma lamelar com ruptura do epitélio e aumento na largura das lamelas. O fígado apresentou alterações histológicas (congestão nos capilares, processos inflamatórios e pigmentação endógena) na presença de 0,30 mg L -1 de NH3, e comprometeram as funções vitais, o metabolismo, processos de respiração, desintoxicação do organismo, hematopoese e provavelmente a osmorregulação. Os resultados sugerem que as alterações nas brânquias e fígado podem ser usadas para monitorar o desempenho de peixes em cultivo intensivo.

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Physiological and Behavioral Responses of Age‐0 Muskellunge during Simulated Stocking in Elevated pH Water

Kramer

Suski

Porreca

et al. 2022

N American J Fish Manag

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Successful stocking of Muskellunge Esox masquinongy into reservoirs is hampered by a variety of stressors that can affect poststocking survival, such as elevated pH conditions common to eutrophic water bodies. We quantified Muskellunge survival, behavior, and physiological responses during a simulated stocking event where age‐0 Muskellunge were netted, held on a hauling truck for 2 h, and then released into water with either the same pH (8.4) or one of two elevated pH levels (8.6 or 9.8). Following the hauling simulation, Muskellunge exhibited an upregulation of plasma‐associated stress responses. Stocking into high‐pH water did not cause mortality, but Muskellunge stocked into pH 9.8 showed signs of stress through ion imbalances and increased surfacing behavior. Four hours after stocking there were indications of recovery with reduced indicators of physiological stress, but Muskellunge did not fully recover in that time. Our study suggests that elevated pH alone may not result in short‐term (≤4 h postrelease) poststocking mortality of age‐0 Muskellunge but does add to the cumulative stress incurred during the stocking process.

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Ammonia and pH effects on some metabolic parameters and gill histology of silver catfish, Rhamdia quelen (Heptapteridae)

Cited by 114 publications

References 25 publications

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

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

Análise histológica das brí¢nquias e do fígado de Bryconops caudomaculatus em diferentes concentrações de amônia

Physiological and Behavioral Responses of Age‐0 Muskellunge during Simulated Stocking in Elevated pH Water

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Ammonia and pH effects on some metabolic parameters and gill histology of silver catfish, Rhamdia quelen (Heptapteridae)

Cited by 114 publications

References 25 publications

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

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

Análise histológica das brí­¢nquias e do fí­­gado de Bryconops caudomaculatus em diferentes concentrações de amônia

Physiological and Behavioral Responses of Age‐0 Muskellunge during Simulated Stocking in Elevated pH Water

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Análise histológica das brí¢nquias e do fígado de Bryconops caudomaculatus em diferentes concentrações de amônia