Nitrogen pollution in mariculture: toxicity and excretion of nitrogenous compounds by marine fish

Handy, Richard D.; Poxton, M.G.

doi:10.1007/bf00043929

Cited by 201 publications

(95 citation statements)

References 129 publications

(186 reference statements)

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“…Eurythermal fish, such as the goldfish, Carassius auratus, can survive temperatures between 0 and 41 ºC and short term exposures to 44 ºC (Fort and Beitinger, 2005), as well as the channel catfish, Ictalurus puntactus, which presents thermal death points between 4 and 35 ºC (Wedemeyer, 1996). Ammonia and urea are the two main nitrogenous products excreted by teleosts, with ammonia usually representing 75-90% of the nitrogenous excretion (Handy & Poxton, 1993). Ammonia toxicity to fish depends on the concentration of unionized ammonia (NH 3 ).…”

Section: Resultsmentioning

confidence: 99%

Tolerance to temperature, pH, ammonia and nitrite in cardinal tetra, Paracheirodon axelrodi, an amazonian ornamental fish

et al. 2008

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Poor water quality condition has been pointed out as one of the major causes for the high mortality of ornamental fishes exported from the state of Amazonas, Brazil. The purpose of the current study was to define water quality standards for cardinal tetra (Paracheirodon axelrodi), by establishing the lower and higher for lethal temperature (LT 50 ), lethal concentration (LC 50 ) for total ammonia and nitrite and LC 50 for acid and alkaline pH. According to the findings, cardinal tetra is rather tolerant to high temperature (33.3 o C), to a wide pH range (acid pH=2.9 and alkaline pH=8.8) and to high total ammonia concentration (23.7 mg/L). However, temperatures below 19.6 o C and nitrite concentrations above 1.1 mg/L NO 2 -may compromise fish survival especially during long shipment abroad.KeywoRdS: 96-h LC 50 , ornamental fish, Paracheirodon axelrodi, water quality. Tolerância a temperatura, pH, amônia e nitrito do cardinal tetra, Paracheirodon axelrodi, um peixe ornamental da AmazôniaReSUMo A má qualidade da água tem sido apontada como uma das maiores causas da alta mortalidade dos peixes ornamentais exportados pelo Estado do Amazonas, Brasil. A proposta deste estudo foi definir padrões de qualidade da água para o cardinal tetra (Paracheirodon axelrodi), estabelecendo a menor e a maior temperatura letal (LT 50 ), a concentração letal (LC 50 ) para amônia total e nitrito e LC 50 para pH ácido e alcalino. De acordo com os resultados, o cardinal tetra é mais tolerante a temperaturas elevadas (33,3 o C), a amplos limites de pH (pH ácido = 2,9 e pH alcalino = 8,8) e a alta concentração de amônia (23,7 mg/L). Entretanto, temperaturas abaixo de 19,6 o C e concentrações de nitrito acima de 1,1 mg/L NO 2 -podem comprometer a sobrevivência dos peixes, especialmente durante longos períodos de transporte para o exterior.PAlAvRAS-ChAve: 96-h LC 50 , Paracheirodon axelrodi, peixe ornamental, qualidade da água.

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Section: Resultsmentioning

confidence: 99%

Tolerance to temperature, pH, ammonia and nitrite in cardinal tetra, Paracheirodon axelrodi, an amazonian ornamental fish

et al. 2008

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“…Chez le turbot, comme chez la majorité des téléostéens, l'Azote Ammoniacal Total (AAT) est la principale forme d'excrétion azotée (HANDY et POXTON, 1994). Dans cette étude, il représente environ 75 % de l'excrétion azotée totale mesurée (urée + AAT), valeur comparable avec les travaux de DOSDAT et al (1995b (DAVENPORT, 1990).…”

Section: Discussionunclassified

Capacités adaptatives du turbot (Psetta maxima) juvénile à la photopériode

Pichavant

Ruyet

Sévère

et al. 1998

Bull. Fr. Pêche Piscic.

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“…The use of quail manure as a fertilizer to enhance the growth of phytoplankton in ponds raises a lot of concerns due to ammonia in quail manure which could potentially affect the growth and survival rate of fish, (Jobling, 1994;Durborow et al, 1997). Ammonia toxicity to fish depends on the concentration of unionized ammonia (NH 3 ) (Handy & Poxton, 1993). Percent NH 3 increases with temperature and pH.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ammonia on Growth and Survival Rate of <i>Tilapia rendalli</i> in Quail Manured Tanks

Sakala¹,

Musuka²

2014

ija

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Nitrogen pollution in mariculture: toxicity and excretion of nitrogenous compounds by marine fish

Cited by 201 publications

References 129 publications

Tolerance to temperature, pH, ammonia and nitrite in cardinal tetra, Paracheirodon axelrodi, an amazonian ornamental fish

Tolerance to temperature, pH, ammonia and nitrite in cardinal tetra, Paracheirodon axelrodi, an amazonian ornamental fish

Capacités adaptatives du turbot (Psetta maxima) juvénile à la photopériode

The Effect of Ammonia on Growth and Survival Rate of <i>Tilapia rendalli</i> in Quail Manured Tanks

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