Acute toxicity and sublethal effects of ammonia and nitrite for juvenile cobia Rachycentron canadum

Rodrigues, Ricardo Vieira; Schwarz, Michael H.; Delbos, Brendan C.; Sampaio, Luís André

doi:10.1016/j.aquaculture.2007.06.009

Cited by 72 publications

(43 citation statements)

References 23 publications

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“…The lower mortality ammonia levels in the zeolite group compared with the control group may reflect the deleterious effect of total ammonia levels reached in the control group. While nonionized ammonia levels found in this study (Table 1) are below the range of LC 50 values at 96 h reported for teleosts (> 0.44 mg/L) for pH values between 6 and 8.2 (Rodrigues et al, 2007;Miron et al, 2008), and there are no known data on sensitivity of A. triradiatus to total ammonia or to its nonionized form, total ammonia concentrations found in this study are higher than the total ammonia LC 50 at 96 h as described for other teleosts (> 12.7 mg/L) (Tomasso & Carmichael, 1986;Wicks et al, 2002), so the concentrations found in this study (>15 mg/L, Table 1) may have exerted adverse effects on the fish being studied. Sublethal alterations have been described in the mrigal (Cirrhinus mrigala) consisting of changes in the hematocrit and buffy coat, reduced hemoglobin and serum proteins, and elevated glucose, alanine aminotransferase, and aspartate aminotransferase in specimens exposed to total ammonia levels between 1 and 16 mg/L, with the LC 50 of 11.8 mg/L for this species (Das et al, 2004).…”

Section: Discussionmentioning

confidence: 80%

Use of sodium chloride and zeolite during shipment of Ancistrus triradiatus under high temperature

et al. 2011

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The use of sodium chloride (0.5 g/L and 1 g/L) and zeolite (22.7 g/L) during shipment (48 h) of Ancistrus triradiatus at high temperatures (between 24.5 and 34°C) were evaluated. Several water quality parameters (dissolved oxygen, pH, conductivity, and total ammonia) were measured before and after shipment. Glycemia was measured before shipment and at 24 and 48 h after shipment. After shipment, a resistance test was carried out in a high concentration of sodium chloride, and mortality was recorded after shipment, and 7 days post-shipment. While the two evaluated substances increased survival of A. triradiatus challenged by high temperatures during shipment, the best result was obtained with 1 g/L of sodium chloride.O uso de cloreto de sódio (0,5 g/L e 1 g/L) e zeolita (22,7 g/L) foram avaliados durante o transporte (48 h) de Ancistrus triradiatus em altas temperaturas (entre 24,5 e 34°C). Os seguintes parâmetros foram monitorados: pH, oxigênio dissolvido, condutividade e amônia antes e depois do transporte. Também foi mensurada a concentração de glicose no sangue antes do transporte e 0, 24 e 48 h após o transporte. Foi realizado um teste de resistência a altas concentrações de cloreto de sódio após o transporte, sendo registrada a mortalidade no final do transporte e após 7 dias. As duas substâncias testadas aumentam a sobrevivência de A. triradiatus a altas temperaturas durante o transporte, porém o melhor resultado foi obtido com o uso de 1 g/L cloreto de sódio.

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Section: Discussionmentioning

confidence: 80%

Use of sodium chloride and zeolite during shipment of Ancistrus triradiatus under high temperature

et al. 2011

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“…Lethargic and decreased swimming activities, increased ventilation rate, loss of equilibrium, increased mucous secretion on the skin and gills and continuous swimming at the bottom of the tank are the first signs noticed as abnormal behavior caused by the exposure to nitrogenous compounds (HAMLIN, 2006;RODRIGUES et al, 2007;DAMATO and BARBIERI, 2011).…”

Section: Resultsmentioning

confidence: 99%

Toxicidade aguda da amônia em juvenis de sardinha-verdadeira Sardinella brasiliensis

et al. 2017

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The Brazilian sardine (Sardinella brasiliensis) is the main fishery resource in Brazil which holds directly the canning industry, as raw material, and indirectly the tuna fishing because juveniles are used as live bait. The UFSC through Live-Bait Project is developing production techniques of Brazilian sardine in captive aimed at the sustainable use of the resource, however there is no information about the toxicity of nitrogenous compounds in the culture of this species. This study was conducted to estimate the acute toxicity of ammonia (NH3-N) on the juvenile Brazilian sardine. Groups of five fish (1.04 ± 0.20 g) were exposed to five concentrations of NH3-N (0.60 to 1.47 mg L -1 ) for 96 h plus control group in three replicates. Tests were run using a standard semi-static system with 100% daily renewal of water and toxicants. The results were based on mortality data registered for the different concentrations tested, using the software Trimmed Spearman Karber method. The median lethal concentration (LC50) after 96 h of exposure to NH3-N was estimated at 0.74 (0.61-0.90) mg L -1 . The results indicates that the juvenile Brazilian sardine is relatively sensitive to ammonia compared to other marine fish and particular attention must be given to this compound in culture systems.Key words: ammonia; LC50; toxicity; marine fish; Brazilian sardine TOXICIDADE AGUDA DA AMÔNIA EM JUVENIS DE SARDINHA-VERDADEIRA Sardinella brasiliensis ABSTRACT A sardinha-verdadeira (Sardinella brasiliensis) é o principal recurso pesqueiro do Brasil que sustenta diretamente a indústria de enlatados, como matéria prima, e indiretamente a pesca dos tunídeos, pois juvenis são utilizados como isca-viva. A UFSC através do Projeto Isca-Viva vem desenvolvendo técnicas de produção de sardinha-verdadeira em cativeiro com vistas ao uso sustentável do recurso, entretanto não existem informações sobre a toxicidade dos compostos nitrogenados no cultivo desta espécie. O objetivo deste estudo foi de estimar a toxicidade aguda de amônia (NH3-N) em juvenis de sardinha-verdadeira. Grupo de cinco peixes (1,04 ± 0,20 g) foram expostos a cinco concentrações de NH3-N (0,60 a 1,47 mg L -1 ) durante 96 h mais um grupo controle em triplicata. Os testes foram conduzidos em um sistema semi-estático com renovação diária total dos meios experimentais. Os resultados foram apresentados como dados de mortalidade, registrados nas diferentes concentrações testadas, utilizando o software Trimmed Spearman Karber Method. A concentração letal (LC50) após 96 h de exposição a NH3-N foi estimada em 0,74 (0,61-0,90) mg L -1 . Os resultados indicam que juvenis de sardinha-verdadeira são relativamente sensíveis à amônia em relação a outros peixes marinhos e atenção especial deve ser dada a este composto em sistemas de cultivo.

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“…Model of lineal regression for the resistance test to stress in the experiment of 48 h for the control group, S1,and Zeo groups in both experiments (12 and 48 h), in all cases (Table 2) they were well below the range of values of LC50 at 96 h reported for teleosts ( 0.34 mg/L) for pH values between 6 and 8.2 (Abbas, 2006;Miron et al, 2008;Rodrigues et al, 2007).…”

Section: Water Quality Parametersmentioning

confidence: 99%

Evaluación del cloruro de sodio, eugenol y zeolita en el confinamiento de Ancistrus triradiatus

Ramírez-Duarte

Pineda-Quiroga²,

Rueda

et al. 2013

Orinoquia

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ResumenSe evaluó el uso de cloruro de sodio (1 y 2 g/L), eugenol (0.1 y 0.5 mg/L), y zeolita (7 g/L en confinamiento de 12 h y 10 g/L en el de 48 h), así como de las mezclas de cloruro de sodio más eugenol (1 g/L y0.5 mg/L, respectivamente) y eugenol más zeolita (0.5 mg/L y 7 o 10 g/L, respectivamente) en confinamiento de Ancistrus triradiatus durante periodos de 12 y 48 h. Se midieron los parámetros de calidad del agua, oxígeno disuelto, pH, temperatura, conductividad y concentraciones de amoniaco total, amonio no ionizado y nitrito. La concentración de glucosa en sangre fue medida antes de iniciar el confinamiento y a las 0, 24 y 48 horas después de terminado dicho confinamiento. También se realizó una prueba de resistencia al estrés al finalizar el periodo de confinamiento mediante la exposición de peces a una solución salina hiperosmótica durante 1 h, en la cual se registró el número de peces que mantenía el eje de nado a intervalos de 5 min; se registró la mortalidad al finalizar los periodos de confinamiento (12 y 48 horas) y la mortalidad acumulada durante los 7 días siguientes. El uso de 1 y 2 g/L de cloruro de sodio en el confinamiento de A. triradiatus durante periodos de 12 h y de 1 g/L durante periodos de 48 h incrementó la resistencia al estrés y redujo la mortalidad de los animales. El uso de eugenol o zeolita no mejoró la resistencia al estrés ni contribuyó a la reducción de la mortalidad de los animales, mientras que la exposición a las mezclas de sal más eugenol y de eugenol más zeolita incrementó la mortalidad, por lo que el uso de estas mezclas no es recomendado en operaciones de confinamiento de A. triradiatus.Palabras clave: Aceite de clavo, clinoptilolita, Loricariidae, sal, transporte de peces. AbstractThe use of sodium chloride (1 and 2 g/L), eugenol (0.1 and 0.5 mg/L), and zeolite (clinoptilolite, 7 g/L for 12 h and 10 g/L for 48 h of confinement), and also mixtures of salt plus eugenol (1 g/L and 0.5 mg/L, respectively) and eugenol plus zeolite

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Acute toxicity and sublethal effects of ammonia and nitrite for juvenile cobia Rachycentron canadum

Cited by 72 publications

References 23 publications

Use of sodium chloride and zeolite during shipment of Ancistrus triradiatus under high temperature

Use of sodium chloride and zeolite during shipment of Ancistrus triradiatus under high temperature

Toxicidade aguda da amônia em juvenis de sardinha-verdadeira Sardinella brasiliensis

Evaluación del cloruro de sodio, eugenol y zeolita en el confinamiento de Ancistrus triradiatus

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