Exposure histories derived from selenium in otoliths of three cold-water fish species captured downstream from coal mining activity

Friedrich, Lisa A.; Orr, Patricia L.; Halden, Norman M.; Yang, Panseok; Palace, Vince

doi:10.1016/j.aquatox.2011.07.021

Cited by 11 publications

(15 citation statements)

References 15 publications

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“…Fish movements in lotic systems with good hydrological connectivity are an important potential factor in producing these Se concentration patterns (Holm et al 2005;Orr et al 2012). Variable use of Se-contaminated habitats by prespawning adult fish has been confirmed in studies of adult trout residency in Elk and McLeod river streams (Friedrich et al 2011;Palace et al 2007). While Se tissue concentrations can reflect dietary concentrations almost immediately, they can take weeks or months to reach equilibrium (Stewart et al 2010).…”

Section: Figmentioning

confidence: 95%

“…2005), 1:2 in brook trout (Holm et al 2005;Miller et al 2013), and 1:2 in cutthroat trout (Orr et al 2012;Rudolph et al 2008)), but similarity in overall accumulation has not been explicitly determined owing to Se exposure uncertainty in field-sampled adult fish (Friedrich et al 2011).…”

Section: Figmentioning

confidence: 99%

“…Therefore, in some cases negative impacts due to toxicity must be substantial before they can be detected at the community level (Environment Canada 2012; Janz et al 2010). Adult fish movements into nearby uncontaminated refugia (Friedrich et al 2011;Palace et al 2007) can reduce the community-level impacts of toxicity through access to habitats with low or no Se exposure. The reproductive effects caused by high egg Se concentrations may be mediated if spawning females utilize and feed in uncontaminated habitats during periods of egg formation (Janz et al 2010), and immigration of fish from uncontaminated refugia would suggest that the appropriate spatial unit for measuring and detecting community-level effects is greater than the reach scale (Freund and Petty 2007).…”

Section: Individual-and Community-level Se Exposure Effects In Fishmentioning

confidence: 99%

“…Adult spawning individuals have typically been targeted for monitoring to collect eggs and ovaries because of their direct connection to reproductive toxicity endpoints , but the Se exposure history of adult fish is often uncertain, because of their propensity to move in and out of areas of Se exposure (Friedrich et al 2011). Field sampling of less mobile life stages of fish during periods of restricted movement may be appropriate for quantifying food chain transfer of Se and monitoring Se concentrations.…”

Section: Introductionmentioning

confidence: 99%

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Food chain transfer and exposure effects of selenium in salmonid fish communities in two watersheds in the Canadian Rocky Mountains

Kuchapski

Rasmussen

2015

Can. J. Fish. Aquat. Sci.

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Selenium (Se) concentrations and fish biomass were examined in streams in two mined watersheds to determine if juvenile salmonids reflect local Se exposure concentrations downstream of surface coal mines and to investigate the relationship between Se exposure and toxicity effects at the fish community level. Se concentrations were measured in water, biofilm, macroinvertebrates, and muscle tissues from juvenile westslope cutthroat trout (Oncorhynchus clarkii lewisi), bull trout (Salvelinus confluentus), rainbow trout (Oncorhynchus mykiss), and brook trout (Salvelinus fontinalis) in mine-affected and reference streams. Significant positive Se transfer relationships were found at each measured level of the lotic food chain.

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Section: Figmentioning

confidence: 95%

Section: Figmentioning

confidence: 99%

Section: Individual-and Community-level Se Exposure Effects In Fishmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Food chain transfer and exposure effects of selenium in salmonid fish communities in two watersheds in the Canadian Rocky Mountains

Kuchapski

Rasmussen

2015

Can. J. Fish. Aquat. Sci.

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“…Within-area variability in WCT selenium concentrations may have been partially attributable to fish movements among areas because the Elk River system has few barriers to fish passage. Within-area selenium concentration profiles in otoliths of WCT captured in 2009 indicated different life-history selenium exposure patterns among individuals [41], as was observed among rainbow trout captured downstream from other coal mine operations [42]. Also, adult WCT tracked by radiotelemetry in the Elk River migrated distances ranging from 2 to 36 km, and initiated spawning migrations from overwinter habitats at different times [43].…”

Section: Sources Of Variability and Implications For Selenium Monitormentioning

confidence: 96%

Food chain model based on field data to predict westslope cutthroat trout (Oncorhynchus clarkii lewisi) ovary selenium concentrations from water selenium concentrations in the Elk Valley, British Columbia

Orr

Wiramanaden

Paine

et al. 2012

Enviro Toxic and Chemistry

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Previous studies conducted in the Elk River watershed showed that selenium concentrations are higher in aquatic biota in lentic compared to lotic habitats of the system having similar water selenium concentrations. Studies have also shown that water selenium concentrations have increased over time (~10% per year) and recent annual average concentrations have ranged up to 0.044 mg/L in areas downstream from mine discharges. For the present study, trophic transfer of selenium was characterized in lotic versus lentic habitats using concentrations measured in field-collected samples and assuming a three-step food chain of water to the base of the food web (biofilm), to benthic invertebrates, and then to westslope cutthroat trout (WCT) ovaries. Food chain models were developed for each habitat type (lotic and lentic) by combining linear regression equations for the three transfer relationships, allowing for prediction of fish ovary concentrations from water concentrations. Greater accumulation of selenium in lentic areas was mostly attributable to greater uptake at the base of the food chain compared to lotic areas. Enrichment/trophic transfer factors for selenium at all levels of the lotic and lentic food chains decreased and then became near constant as exposure concentrations increased. The lotic model predicted little increase in WCT ovary selenium concentrations over an eightfold increase in water concentrations (~0.005-0.040 mg/L), accounting for the lack of observed increase in within-area fish tissue concentrations over time despite increasing trends in water concentrations.

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Microchemical analysis of selenium in otoliths of two West Virginia fishes captured near mountaintop removal coal mining operations

Arnold

Friedrich

Lindberg

et al. 2015

Enviro Toxic and Chemistry

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Otoliths, calcified inner ear structures, were collected from creek chubs (Semotilus atromaculatus) and green sunfish (Lepomis cyanellus) living in mountaintop mining-impacted and reference streams and analyzed for selenium (Se) content using laser ablation-inductively coupled mass spectrometry. Significant differences in otolith Se were found between the 2 fish species. Results from the present study suggest that a retrospective reconstruction of Se concentrations in muscle can be derived from Se concentrations in otoliths in creek chub but not green sunfish, exemplifying the importance of species differences when determining partitioning of Se among specific tissues. Green sunfish otoliths from all sites contained background (<1 μg/g) or low (1-4 μg/g) average concentrations of whole-otolith Se. In contrast, creek chub otoliths from the historically mined site contained much higher (≥5 μg/g) concentrations of Se than for the same species in the unmined site or for the green sunfish. These data suggest that body burdens of Se in fish can vary considerably over time and that both the timing of sampling and species choice could heavily influence Se assessments.

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Exposure histories derived from selenium in otoliths of three cold-water fish species captured downstream from coal mining activity

Cited by 11 publications

References 15 publications

Food chain transfer and exposure effects of selenium in salmonid fish communities in two watersheds in the Canadian Rocky Mountains

Food chain transfer and exposure effects of selenium in salmonid fish communities in two watersheds in the Canadian Rocky Mountains

Food chain model based on field data to predict westslope cutthroat trout (Oncorhynchus clarkii lewisi) ovary selenium concentrations from water selenium concentrations in the Elk Valley, British Columbia

Microchemical analysis of selenium in otoliths of two West Virginia fishes captured near mountaintop removal coal mining operations

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