Assessment of Tolerant Sunfish Populations (Lepomis sp.) Inhabiting Selenium-Laden Coal Ash Effluents

Lohner, Timothy W.; Reash, Robin J.; Williams, Marshall V.

doi:10.1006/eesa.2001.2098

Cited by 58 publications

(44 citation statements)

References 30 publications

(37 reference statements)

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“…Pollutants' stresses appeared to accelerate synthesis of body protein. The present results are in agreement with the study of Lohner et al (2001) who attributed increase in protein contents in response to the exposure of increasing metal concentrations, to synthesis of proteins required to sequester the metals. Similarly, Susan et al (2010) noticed an increase in protein content in the muscles of C. mrigala being exposed to fenvalerate (synthetic pyrethroids) and suggested that the toxicant stress might have stimulated protein synthesis for enzymic detoxification at the expense of glycogen to meet additional requirement in the synthetic activity of body tissues.…”

Section: Discussionsupporting

confidence: 93%

“…Variations in these nutrients have been described as indicative of long-term exposure to stressors (Mayer et al 1992). Biochemical responses can be affected by environmental factors, such as physico-chemical profiles of aquatic medium, season, fish nutritional status, age and health (Lohner et al 2001). Carbohydrate contents of the fish muscles decreased retrogressively from the site B to C. The nutrient decrease was reached at 77.1 and 74.2 % for the site C during low and high flows than the corresponding values at site A.…”

Section: Discussionmentioning

confidence: 93%

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Examining muscles of Cirrhinus mrigala for biochemical parameters as a bio-indicator of water pollution by municipal and industrial effluents into River Ravi, Pakistan

2014

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We examined the muscles from replicated samples of Cirrhinus mrigala as a bio-indicator of water pollution following sewage and industrial discharges from the Lahore city into Ravi River of Pakistan. For this, C. mrigala was netted from three variably polluted downstream sites (B, C and D) and one less polluted upstream site (A). The fish was sampled during low (winter) and high (post monsoon) river flow seasons. The fish muscles from site D showed 28 % less total carbohydrates than the fish caught from site A. The muscle carbohydrate contents were further decreased at sites B and C by 58 and 59 % and 77 and 74 %, during low and high flows, respectively. Moreover, total lipids, cholesterol and RNA contents for the muscle of the fish from the downstream locations were also decreased up to 29, 68 and 58 %, respectively. Conversely, total protein, soluble protein and DNA contents were increased in fish muscles progressively downstream during both the low-and high-flow seasons. It appeared that the fish muscle components can change with the level of water pollution which may affect the fish attributes as a safe food.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 93%

Examining muscles of Cirrhinus mrigala for biochemical parameters as a bio-indicator of water pollution by municipal and industrial effluents into River Ravi, Pakistan

2014

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“…Coyle et al (1993); Lohner et al (2001); McIntyre et al (2008) reported no response of selenium on growth rate of bluegill.…”

Section: Selenium Effects On Fishmentioning

confidence: 99%

Modeling effects of toxin exposure in fish on long-term population size, with an application to selenium toxicity in bluegill (Lepomis macrochirus)

Gledhill

Kirk

2011

Ecological Modelling

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MODELING EFFECTS OF TOXIN EXPOSURE IN FISH ON LONG-TERM POPULATION SIZE, WITH AN APPLICATION TO SELENIUM TOXICITY IN BLUEGILL (LEPOMIS MACROCHIRUS)Michelle Gledhill A primary goal in ecotoxicology is the prediction of population-level effects of contaminant exposure based on individual-level response. Assessment of toxicity at the population level has predominately focused on the population growth rate (PGR), but the PGR may not be a relevant toxicological endpoint for populations at equilibrium. Equilibrium population size may be a more meaningful endpoint than the PGR because a population with smaller equilibrium (i.e., long-term mean) size is more susceptible to the negative effects of environmental variability. I address the ecotoxicology individual-to-population extrapolation problem with modeling. I developed and analyzed a general model applicable to many freshwater fish species that includes density-dependent juvenile survival and additional juvenile mortality due to toxicity exposure, and I quantified its effect on equilibrium population size as a means of assessing toxicity. I then used selenium toxicity in bluegill sunfish as an example to assess the effects of environmental stochasticity on toxicity response with simulation modeling. Individual-level effects are typically greater than population-level effects until the individual effect is large, due to compensatory density-dependent relationships. These effects are sensitive to the recruitment potential of a population, in particular the low-density first-year survival rate S b . Assuming high S b could result in underestimating effects of population-level toxicity. The equilibrium size depends directly on S b , the reproductive potential, the toxin concentration at which mean mortality is 50% (LC 50 ), and iii the rate at which individual mortality increases with increasing toxin concentration. More experimental data are needed to decrease the uncertainty in estimating these parameters.Effects of environmental variability resulted in simulated extinctions at much lower toxin concentrations than predicted deterministically. iv ACKNOWLEDGEMENTS

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“…A number of fish species and other organisms have been documented to be sensitive to coal ash, a byproduct of coal combustion at electricity generation plants, and wastewater runoff from coal ash settling basins (Cherry et al 1976(Cherry et al , 1984Hopkins et al 1999Hopkins et al , 2000aHopkins et al , 2000bLemly 1985;Lohner et al 2001aLohner et al , 2001bLohner et al , 2001cRowe et al 1998). Of 20 fish species inhabiting Belews Lake, North Carolina prior to selenium (Se) contamination from ash basin drain water, 16 were extirpated from the lake apparently due to reproductive failure associated with the contamination (Lemly 1985(Lemly , 1997.…”

mentioning

confidence: 99%

“…Eastern mosquitofish (Gambusia holbrooki) were one of four species (including common carp, Cyprinus carpio; fathead minnows, Pimephales promelas; and black bullheads, Ictalurus melas) that remained in Belews Lake after Se-contamination and was the only species that appeared to maintain a reproductively viable population (Lemly 1985). In other systems associated with power plants, eastern mosquitofish persist in ash settling basins (Cherry et al 1976;Hopkins et al 1999) and sunfish remain in streams that receive fly ash pond runoff with seemingly few detectable negative effects (Lohner et al 2001a(Lohner et al , 2001b(Lohner et al , 2001c.…”

mentioning

confidence: 99%

Respiratory and Reproductive Characteristics of Eastern Mosquitofish (Gambusia holbrooki) Inhabiting a Coal Ash Settling Basin

Staub

Hopkins

Novak

et al. 2004

Arch Environ Contam Toxicol

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Assessment of Tolerant Sunfish Populations (Lepomis sp.) Inhabiting Selenium-Laden Coal Ash Effluents

Cited by 58 publications

References 30 publications

Examining muscles of Cirrhinus mrigala for biochemical parameters as a bio-indicator of water pollution by municipal and industrial effluents into River Ravi, Pakistan

Examining muscles of Cirrhinus mrigala for biochemical parameters as a bio-indicator of water pollution by municipal and industrial effluents into River Ravi, Pakistan

Modeling effects of toxin exposure in fish on long-term population size, with an application to selenium toxicity in bluegill (Lepomis macrochirus)

Respiratory and Reproductive Characteristics of Eastern Mosquitofish (Gambusia holbrooki) Inhabiting a Coal Ash Settling Basin

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