Effects of bicarbonate alkalinity and calcium on the acute toxicity of copper to juvenile channel catfish (Ictalurus punctatus)

Wurts, William A.; Perschbacher, Peter W.

doi:10.1016/0044-8486(94)90284-4

Cited by 58 publications

(30 citation statements)

References 11 publications

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“…Several studies have shown that Ca ϩϩ alone (Pickering and Puia 1969;O'Shea and Mancy 1978;Say and Whitton 1983;Wehr and Whitton 1983) and combined with Mg ϩϩ decrease heavy metal accumulation by various organisms (Kinkade and Erdman 1975;Wells and Brown 1990;Markich and Jeffree 1994;Wurts and Perschbacher 1994).…”

mentioning

confidence: 99%

Influence of Water Hardness on Accumulation and Elimination of Cadmium in Two Aquatic Mosses Under Laboratory Conditions

Gagnon

Vaillancourt

Pazdernik

1998

Arch Environ Contam Toxicol

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This study investigated the effect of water hardness on the accumulation and elimination of cadmium (Cd) by two aquatic mosses, Fontinalis dalecarlica and Platyhypnidium riparioides, under laboratory conditions. The two mosses were exposed to nominal Cd concentrations of 0, 0.8, 2, and 10 microg . L-1, which includes the concentration range generally found in nature. The influence of three levels of water hardness (very soft: 11.7 mg . L-1; soft: 44.2 mg . L-1; and hard water: 92.3 mg . L-1 as CaCO3) was measured while maintaining the alkalinity and pH constant during the 28-day exposure. The Cd accumulation by the aquatic mosses was rapid, showing the potential of accumulation and the sensitivity of this biomonitor. Even if the actual Cd concentration in the water was low (concentration <0.15 microg . L-1 to 6.82 microg . L-1 of Cd), the uptake of Cd was very fast and mostly linear. This study was conducted in water hardness comparable to that found in the Canadian shield (hardness was <100 mg . L-1 as CaCO3). When the actual Cd concentration in the water was as high as 6.82 microg . L-1, the uptake of Cd was mostly linear and the steady state condition was not reach. Accumulation rates of Cd were significantly different when the mosses were in very soft (11.7 mg . L-1) as compared to hard water (92.3 mg . L-1 as CaCO3). The elimination of Cd followed a very slow process for the two species studied. The elimination rates of Cd from the mosses were not influenced by water hardness.

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mentioning

confidence: 99%

Influence of Water Hardness on Accumulation and Elimination of Cadmium in Two Aquatic Mosses Under Laboratory Conditions

Gagnon

Vaillancourt

Pazdernik

1998

Arch Environ Contam Toxicol

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“…Another agent used in the treatment of ichthyophthiriasis was copper sulfate (Ling et al 1993;Straus 1993Schlenk et al 1998;Rowland et al 2009). However, copper sulfate can be extremely toxic to fish in water of low alkalinity (Straus and Tucker, 1993;Wurts and Perschbacher, 1994;Perschbacher and Wurts, 1999). Preventive method by increasing water flow in fish-holding systems has been suggested to control ichthyophthiriasis (Bodensteiner et al 2000), but this method is difficult to use in many rearing facilities.…”

Section: Introductionmentioning

confidence: 97%

Effect of sanguinarine from the leaves of Macleaya cordata against Ichthyophthirius multifiliis in grass carp (Ctenopharyngodon idella)

Yao

Shen

et al. 2010

Parasitol Res

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The ciliate Ichthyophthirius multifiliis is one of the most pathogenic parasites of fish maintained in captivity. In this study, effects of crude extracts, fractions, and compounds from the leaves of Macleaya cordata against I. multifiliis were investigated under in vitro conditions by bioactivity-guided isolation method. The dried ethanol extract of M. cordata was extracted successively in a separating funnel with petroleum ether, ethyl acetate, chloroform and n-butanol. Among them, only the chloroform extract showed promising activity and therefore, was subjected to further separation and purification using various chromatographic techniques. Four compounds were isolated from chloroform extract, but only one compound showed potent activity. The structure of the active compound was elucidated as sanguinarine by hydrogen, carbon-13 nuclear magnetic resonance spectrum and electron ionization mass spectrometry. In vitro antiparasitic efficacy tests exhibited that sanguinarine was 100% effective against I. multifiliis at a concentration of 0.7 mg l(-1), with LC(50) and LC(90) values of 0.437 and 0.853 mg l(-1) after 4 h of exposure. In vivo antiparasitic efficacy tests showed that the number of I. multifiliis on the gills in the treatment group (in 0.9 mg l(-1) sanguinarine) was reduced by 96.8%, in comparison to untreated group at 25°C for 48 h. Mortality of fish did not occur in the treatment group during the trail, although 40% of untreated fish died. Our results indicate that the studied plant extracts, as well as sanguinarine might be potential sources of new antiparasitic drug for the control of I. multifiliis.

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“…Each aquarium contained 10 fish. Nile tilapia fingerlings were exposed to 0 (control), 5 , respectively). Three replications per treatment in static renewal-toxicity test were performed to determine 96 h-LC 50 .…”

Section: Acute Toxicity Testmentioning

confidence: 99%

“…Regardless of its important role in cellular metabolism, copper (Cu) is of particular interest because it is extremely toxic for aquatic animals if elevated concentrations are introduced into the water [5][6][7][8]. High copper levels can cause fast generation of reactive oxygen species [9].…”

Section: Introductionmentioning

confidence: 99%

The Acute Toxicity of Copper to Nile Tilapia (Oreochromis niloticus) Fingerlings and its Effects on Gill and Liver Histology

Alkobaby¹,

El-Wahed²

2017

J Aquac Res Development

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Effects of bicarbonate alkalinity and calcium on the acute toxicity of copper to juvenile channel catfish (Ictalurus punctatus)

Cited by 58 publications

References 11 publications

Influence of Water Hardness on Accumulation and Elimination of Cadmium in Two Aquatic Mosses Under Laboratory Conditions

Influence of Water Hardness on Accumulation and Elimination of Cadmium in Two Aquatic Mosses Under Laboratory Conditions

Effect of sanguinarine from the leaves of Macleaya cordata against Ichthyophthirius multifiliis in grass carp (Ctenopharyngodon idella)

The Acute Toxicity of Copper to Nile Tilapia (Oreochromis niloticus) Fingerlings and its Effects on Gill and Liver Histology

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