Survival, growth and metabolic parameters of silver catfish, Rhamdia quelen, juveniles exposed to different waterborne nitrite levels

Lima, Ronaldo Lima de; Braun, Neiva; Kochhann, Daiani; Lazzari, Rafael; Neto, João Radünz; Moraes, Bibiana Silveira; Loro, Vânia Lúcia; Baldisserotto, Bernardo

doi:10.1590/s1679-62252011005000004

Cited by 18 publications

(10 citation statements)

References 38 publications

(40 reference statements)

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“…Results obtained for Na + , ammonia and nitrite were within the limits reported earlier as appropriate for silver catfish growth (LIMA et al, 2011;MIRON et al, 2011). Periodic exchange of 20% of the water volume in the experimental tanks was probably responsible for maintaining these parameters at suitable levels.…”

Section: Discussionsupporting

confidence: 82%

“…Food remained, as well as residues and feces, were removed 30min after feeding, followed by an average 20% replacement of tank water previously prepared with the adequate pH and HA concentration. Anesthetized juveniles with 50µL L -1 eugenol (Odontofarma, Porto Alegre, Brazil) (CUNHA et al, 2010) were weighed and measured at 20 and at the end of the experiment (40 days) so that specific growth rate (SGR), feed intake and biomass could be estimated according to LIMA et al (2011).…”

Section: Experimental Designmentioning

confidence: 99%

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Growth of silver catfish ( Rhamdia quelen ) exposed to acidic pH at different humic acid levels

et al. 2016

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Section: Discussionsupporting

confidence: 82%

Section: Experimental Designmentioning

confidence: 99%

Growth of silver catfish ( Rhamdia quelen ) exposed to acidic pH at different humic acid levels

et al. 2016

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“…Turbot (Scophthalmus maximus) exposed to high NO 2 -levels increased plasma glucose and cortisol levels, probably as a response to hypoxia stress. The higher lactate levels in the muscle (present study) and liver (LIMA et al, 2011) of silver catfish exposed to high NO 2 -levels indicate tissue hypoxia. Consequently, the lower hepatic and muscular glucose levels and lower hepatic glycogen observed in silver catfish exposed to high NO 2 -levels (present study and LIMA et al, 2011) may be due to release of carbohydrate stores to the blood to provide energy to cope with hypoxia.…”

Section: Coltmentioning

confidence: 43%

“…A previous study showed that 100% mortality was observed in silver catfish maintained at 1.52 mg L -1 NO 2 -, but that exposure to levels of up to 1.19 mg L -1 NO 2 -did not affect survival or growth (LIMA et al, 2011). Therefore, silver catfish has a limited NO 2 -concentration range from reduced growth to total mortality.…”

Section: Discussionmentioning

confidence: 95%

Interação do cálcio e nitrito na água: sobrevivência, crescimento, parí¢metros hematológicos e metabólicos em jundiá

Neves¹,

Souza²,

Santos³

et al. 2017

Bol. Inst. Pesca

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The objective of this study was to determine the effect of different waterborne nitrite (NO 2 -) and calcium (Ca 2+ ) levels on growth, biochemical and hematological parameters of silver catfish juvenile (Rhamdia quelen). Fish were submitted to low (0.05 mg L -1 ) or high (1.3 mg L -1 ) NO 2 and low (7 mg L -1 ) or high (14 mg L -1 ) Ca 2+ levels (four replicates) for 60 days. At the end of the experimental period, fish exposed to high NO 2 showed lower weight gain, biomass and specific growth rate than those maintained at low NO 2 , irrespective of Ca 2+ levels.

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“…nitrite and un-ionized ammonia levels below 1.2 mg L -1 and 0.1 mg L -1 respectively) (LIMA et al 2011, MIRON et al 2011). According to ZAIONS & BALDISSEROTTO (2000), even though silver catfish presents a marked loss of Na + at pH 4.0, this is the acidic pH threshold for the species survival, at least for 96 h. In the present assessment this assertion was confirmed by the 0% survival of fish exposed to pH 3.8 regardless the HA concentrations.…”

Section: Discussionmentioning

confidence: 99%

Effect of humic acid on survival, ionoregulation and hematology of the silver catfish, Rhamdia quelen (Siluriformes: Heptapteridae), exposed to different pHs

Costa¹,

Gressler²,

Sutili³

et al. 2015

Zoologia (Curitiba)

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| Sociedade Brasileira de Zoologia | www.sbzoologia.org.br | www.scielo.br/zool All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY-NC.Dissolved organic matter, an integral part of all ecosystems, results from the decay of plant and animal debris (THURMAN 1985). It comprises humic, fulvic, and other organic acids, and is usually quantified as dissolved organic carbon (DOC) (WOOD et al. 2011). DOC is known to positively regulate several biotic/abiotic processes (STEINBERG et al. 2007, WOOD et al. 2011. In blackwaters, such as those found in forest streams in the Amazon, coastal lagoons in southeastern Brazil, Finnish and Swedish lakes, and Canadian wetlands, DOC may range from 10 to 300 mg CL -1 , while its average content in freshwater systems elsewhere is 0.5-4.0 mg CL -1 (THURMAN 1985, KÜCHLER et al. 2000, FARJALLA et al. 2009). The high levels of DOC account for the acidity of the aquatic environment. In order to thrive in acidic environments, organisms need a certain degree of specialization in their osmoregulatory organs (MATSUO & VAL 2007).Low pH (pH 4-5) induces ion loss (ZAIONS & BALDISSEROTTO 2000, 2003, BOLNER & BALDISSEROTTO 2007, MATSUO & VAL 2007, DUARTE et al. 2013) and the interference with gill ionoregulatory mechanisms may also trigger hematological disturbances. Ionic dilution, potentiated by the plasma acidosis prompted by H + entry, affects body fluid distribution. This could promote reduction in plasma volume, swelling of erythrocytes or splenic contraction, resulting in elevation of the hematocrit (MILLIGAN & WOOD 1982). Despite being highly responsible for the acidic nature of blackwaters, there is evidence that DOC protects native fish from the deleterious effects of low pH, reducing ion loss , 2003, MATSUO & VAL 2007. According to some studies, the occurrence of various charged functional groups in the heterogeneous compounds of DOC may change fundamental properties of the gill epithelium, such as the transepithelial potential, thus altering membrane permeability and stimulating ion uptake (WOOD et al. 2011). Humic acid also reduces respiratory stress in fish exposed to slightly acidic water, but increases it at more acidic waters (HOLLAND et al. 2014) and decreases lipid peroxidation and modulates the antioxidant system (RIFFEL et al. 2014). In opposition to the several findings regarding the effects of DOC on ionoregulatory disturbances, respiratory stress and antioxidant system, no evidence has been documented about its influence on the hematology of fish subjected to acidic pH. 4.2, erythrocytes of fish not exposed to HA were smaller, an effect that was partially offset by the presence of HA, since the values at pH 7.0 were higher. Although HA showed some positive effects changes in hematological and plasma K + ª in silver catfish caused by exposure to acidic pH, the overall findings suggest that HA does not protect this species against acidic pH because it increased mortality and Cl -loss at pH 4.0. Effect of humic acid on su...

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Survival, growth and metabolic parameters of silver catfish, Rhamdia quelen, juveniles exposed to different waterborne nitrite levels

Cited by 18 publications

References 38 publications

Growth of silver catfish ( Rhamdia quelen ) exposed to acidic pH at different humic acid levels

Growth of silver catfish ( Rhamdia quelen ) exposed to acidic pH at different humic acid levels

Interação do cálcio e nitrito na água: sobrevivência, crescimento, parí¢metros hematológicos e metabólicos em jundiá

Effect of humic acid on survival, ionoregulation and hematology of the silver catfish, Rhamdia quelen (Siluriformes: Heptapteridae), exposed to different pHs

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Survival, growth and metabolic parameters of silver catfish, Rhamdia quelen, juveniles exposed to different waterborne nitrite levels

Cited by 18 publications

References 38 publications

Growth of silver catfish ( Rhamdia quelen ) exposed to acidic pH at different humic acid levels

Growth of silver catfish ( Rhamdia quelen ) exposed to acidic pH at different humic acid levels

Interação do cálcio e nitrito na água: sobrevivência, crescimento, parí­¢metros hematológicos e metabólicos em jundiá

Effect of humic acid on survival, ionoregulation and hematology of the silver catfish, Rhamdia quelen (Siluriformes: Heptapteridae), exposed to different pHs

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Interação do cálcio e nitrito na água: sobrevivência, crescimento, parí¢metros hematológicos e metabólicos em jundiá