Preferred pH of silver catfish Rhamdia quelen acclimated to different pH levels

Riffel, Alessandro; Jardim, Sinara Santos; Pires, Marcela Ciprandi; Bertagnolli, Bruna; Corrêa, Bruna; Ré, Francine Cenzi De; Zambra, Francis Maria Bao; Lubini, Greice; Garcia, Luciano de Oliveira; Baldisserotto, Bernardo

doi:10.1590/s0103-84782012000500012

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…Previous study demonstrated that uninfected silver catfish juveniles at water hardness of 24 mg CaCO 3 L -1 preferred the 7.0-7.6 pH range (Riffel et al, 2012). These results are within the same range observed in the present study for this water hardness, with is in agreement with the fact that juveniles of this species presented better growth at pH 7.0-7.5 than at pH 5.5 and 9.0 (Baldisserotto, 2011).…”

Section: Discussionsupporting

confidence: 93%

“…The usual pH range for fish growth is 6.0 to 9.0; lower pH can occur due to the presence of acidic cations, humic and fulvic acids, and more alkaline pH can be due to high levels of carbonate and other ions (Parra & Baldisserotto, 2007). Water quality may elicit a preference or avoidance response in fish (Kroon & Housefield, 2003), and several studies have demonstrated that fish preferred a specific pH (Jones et al, 1985;Nakamura, 1986;Peterson et al 1989;Åtland & Barlaup 1996;Åtland, 1998;Ikuta et al, 2003;Kroon & Housefield, 2003, Kroon, 2005, Scott et al, 2005, Riffel et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

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Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments

et al. 2013

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The aim of this study was to determine the preferred pH in silver catfish Rhamdia quelen juveniles acclimated to different water hardness and the effect of shelters and infection by Ichthyophthirius multifiliis. Fish were acclimated for two weeks at different water hardness levels (4, 24, 50, or 100 mg CaCO 3 L -1) and then transferred to a polyethylene tube with a pH gradient ranging from 3.5 to 11.7 and maintaining the same hardness. The position of the fish in the pH gradient was observed at 1, 2, 4, 6, 8, 10, and 12 h after transfer. Acclimation to different water hardness did not change pH preference of uninfected silver catfish (pH 7.30-7.83), and the presence of a shelter at the preferred pH or outside this preferred pH did not change the chosen pH range, either. Consequently silver catfish favored the acid-base regulation over shelter seeking tendency. Juveniles infected with I. multifiliis acclimated to water hardness of 24 mg CaCO 3 L -1 preferred alkaline pH (9.08-9.79). This choice is not explained by the higher Na + levels at alkaline pH compared to neutral pH because infected and uninfected fish choose the same waterborne Na + levels in a Na + gradient with the same pH.O objetivo deste estudo foi determinar o pH preferencial de juvenis de jundiá Rhamdia quelen aclimatados a diferentes durezas da água e o efeito de abrigos e infecção por Ichthyophthirius multifiliis. Os peixes foram aclimatados durante duas semanas em diferentes níveis de dureza da água (4, 24, 50 ou 100 mg CaCO 3 L -1 ) e então transferidos para um tubo de polietileno com um gradiente de pH de 3,5-11,7, mantendo a mesma dureza. A posição do peixe no gradiente de pH foi observada 1, 2, 4, 6, 8, 10 e 12 h após a transferência. A aclimatação a diferentes durezas da água não afetou o pH preferencial de jundiás não infectados (pH 7,30-7,83), e a presença de um abrigo no pH preferido ou fora deste pH também não alterou a faixa de pH preferida. Portanto, jundiás favorecem a regulação ácido-base em detrimento a uma tendência de procurar abrigo. Em juvenis infectados com I. multifiliis aclimatados à dureza da água de 24 mg L -1 de CaCO 3 o pH preferencial é alcalino (9,08-9,79). Esta escolha não é explicada pelos maiores níveis de Na + em pH alcalino que em pH neutro porque peixes infectados e não infectados escolheram os mesmos níveis de Na + na água em um gradiente de Na + com o mesmo pH.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments

et al. 2013

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“…In contrast, studies investigating the ability of any salmonid to adapt to pH alone, as measured by changes in pH avoidance or preference, could not be found. Shifts in pH preference after pH exposure have only been investigated with a single species, silver catfish Rhamdia quelen (Quoy & Gaimard 1824) (Riffel et al , ). Adaptation to pH is important because the results of behavioural studies may differ depending on pH exposure history.…”

Section: Estimated Parameters and Associated Statistics For The Finalmentioning

confidence: 99%

“…Other studies investigating the avoidance and preference pH of salmonids exposed to different pH levels could not be found for comparison. Riffel et al () reported that acclimation of R . quelen to different pHs did not change the preference pH.…”

Section: Estimated Parameters and Associated Statistics For The Finalmentioning

confidence: 99%

Preference and avoidance pH of brook trout Salvelinus fontinalis and brown trout Salmo trutta exposed to different holding pH

Fost

Ferreri

2015

Journal of Fish Biology

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The goal of this study was to determine if short-term exposure of brook trout Salvelinus fontinalis and brown trout Salmo trutta to a lower pH than found in their source stream results in a shift in preference or avoidance pH. The lack of a shift in preference or avoidance pH of adult S. fontinalis and S. trutta suggests that these species can be held at a pH different from the source waterbody for a short period of time without altering preference or avoidance pH behaviour.

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Evaluating "anxiety" and social behavior in jundiá (Rhamdia quelen)

Abreu

Giacomini

Koakoski

et al. 2016

Physiology & Behavior

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Preferred pH of silver catfish Rhamdia quelen acclimated to different pH levels

Abstract: The aim of this study was to investigate the preferred pH in silver catfish Rhamdia quelen acclimated to different pH. Fish were acclimated for one week at pH 4. 2±0.1, 5.2±0.1, 6.3±0.1, 7.2±0.1, 8.0±0.1, and 9.0±0.1 and after 4,2±0,1; 5,2±0,1; 6,3±0,1; 7,2±0,1; 8,0±0,1

Cited by 4 publications

References 10 publications

Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments

Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments

Preference and avoidance pH of brook trout Salvelinus fontinalis and brown trout Salmo trutta exposed to different holding pH

Evaluating "anxiety" and social behavior in jundiá (Rhamdia quelen)

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