Acute toxicity of a native mummichog population (Fundulus heteroclitus) to mercury

Klaunig, James E.; Koepp, Stephen J.; McCormick, Michael L.

doi:10.1007/bf01683367

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…Jackim et al, [41] and Klavnig et al, [42] reported acute toxicity levels during 96 hr. of exposure.…”

Section: Resultsmentioning

confidence: 98%

Untitled

2019

RJLBPCS

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The toxic effect of Mercury on freshwater fish Oreochromis mossambicus was studied. The LC50 values of mercury in O. mossambicus for 24, 48, 72 and 96 hours were 0.73, 0.69, 0.63 and 0.58 ppm respectively. Tilapia fish was silvery white in body in the control group throughout the experiment. The body colour changed from original silvery white to dark colour in heavy metal treated fish. The fish maintained in freshwater behaved normal as usual. But when the fish was exposed to mercury, erratic swimming, abnormal posture, dis-balance, sluggishness, imbalance in posture, increase in surface activity, opercular movement, gradual loss of equilibrium and spreading of excess of mucus all over the surface of the body were observed.

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“…Jackim et al, [41] and Klavnig et al, [42] reported acute toxicity levels during 96 hr. of exposure.…”

Section: Resultsmentioning

confidence: 98%

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2019

RJLBPCS

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“…Jackim et al (1970) and Klaunig et al (1975) reported relatively high acute 96-hr LC", of mercury (as mercuric chloride) to adult mummichog, Fundulus heteroclitus of 23D and 2010 pg/l respectively. Both the studies were performed under similar laboratory conditions, utilising the fish collected during the spring and summer months.…”

Section: Resultsmentioning

confidence: 99%

Determination of acute toxicity levels of mercury to the fishTilapia mossambica (Peters)

Menezes

Qasim

1983

Proc Ani Sci

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Toxicity of inorganic mercury to the freshwater fish Tilapia mossambica was demonstrated by static bioassays. Statistical analysis was used for calculating 48 hr median tolerance limit, 95% confidence limits and the slope function (S). No mortality was observed within 48 hr in mercuric chloride concentration of 0.7 mgl" although the swimming activity of the fish decreased and the rate of opercular movement increased significantly. Concentrations of 0.9 mgl" and higher proved lethal. Symptoms of mercury poisoning and safe concentrations of mercury have been discussed.

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“…Jackim et al (1970) and Klaunig et al (1975) studied the acute toxicity of mercuric chloride to adult Funduius heteroclitus. They reported 96-h LC50 values of 230 and 2010 ,& ', respectively, demonstrating the variability in the survival response of this species.…”

Section: Introductionmentioning

confidence: 99%

The toxicity of mercuric chloride and methylmercuric chloride to Fundulus heteroclitus embryos in relation to exposure conditions

Sharp

Neff

1982

Environ Biol Fish

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SynopsisEmbryos in specific stage of the estuarine teleost, Fundulus heteroclitus, were exposed to mercuric chloride (MC) and methylmercuric chloride (MMC) under several distinct treatment conditions. Four-eight cell stage eggs (O-day old) were exposed for 4 days (continuous), 2 days and one day to each mercury compound. Oneday old (mid-blastula), 2-day old (mid-neurula) and 5-day old (beating heart) embryos were exposed 4 days to MC and MMC. Mortality for the four days immediately following the initiation of exposure was the embryonic response measured. Under most exposure conditions to the 4-8 cell eggs, progressive and significant reductions in survival were observed at all concentrations above 40 and 30 pgHg++l-' as MC and MMC, respectively. Reducing the duration of exposure to 1 day most significantly increased the survival potential of the 4-8 cell eggs. For all exposure treatments to the 4-8 cell eggs, significant differences in survival, between eggs exposed to MC and MMC, were determined at 40,60 and 80 pgHg++l-', indicating the presence of compound-dependent response differences. In all cases demonstrating response differences between MC and MMC exposed embryos, survival was significantly lower following exposure to MMC. Survival of embryos was progressively increased when the initiation of continuous exposure (4 days) was delayed 1,2 and 5 days after fertilization. As a result, compound-dependent response differences were progressively shifted to higher Hg++ concentrations. For both MC and MMC, survival of l-day old embryos exposed for 4 days was greater than that of O-day old eggs exposed for 1 day. Of the embryonic stages examined, it appears that the earlier cleavage stages are the most sensitive to mercury intoxication.

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Acute toxicity of a native mummichog population (Fundulus heteroclitus) to mercury

Cited by 11 publications

References 5 publications

Untitled

Untitled

Determination of acute toxicity levels of mercury to the fishTilapia mossambica (Peters)

The toxicity of mercuric chloride and methylmercuric chloride to Fundulus heteroclitus embryos in relation to exposure conditions

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