Alkali Element Uptake in Otoliths: A Link Between the Environment and Otolith Microchemistry

Friedrich, Lisa A.; Halden, Norman M.

doi:10.1021/es072093r

Cited by 27 publications

(40 citation statements)

References 16 publications

(19 reference statements)

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“…Otolith Li/Ca has been used as an elemental marker in freshwater [57], diadromous [58], and marine teleosts [59] as well as an elasmobranch [31]. Fleishman et al [60] determined that lithium (Li + ) concentrations in the blood plasma of elasmobranchs were 5-7 times lower than that of ambient seawater.…”

Section: Discussionmentioning

confidence: 99%

Elemental Markers in Elasmobranchs: Effects of Environmental History and Growth on Vertebral Chemistry

2013

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Differences in the chemical composition of calcified skeletal structures (e.g. shells, otoliths) have proven useful for reconstructing the environmental history of many marine species. However, the extent to which ambient environmental conditions can be inferred from the elemental signatures within the vertebrae of elasmobranchs (sharks, skates, rays) has not been evaluated. To assess the relationship between water and vertebral elemental composition, we conducted two laboratory studies using round stingrays, Urobatis halleri, as a model species. First, we examined the effects of temperature (16°, 18°, 24°C) on vertebral elemental incorporation (Li/Ca, Mg/Ca, Mn/Ca, Zn/Ca, Sr/Ca, Ba/Ca). Second, we tested the relationship between water and subsequent vertebral elemental composition by manipulating dissolved barium concentrations (1x, 3x, 6x). We also evaluated the influence of natural variation in growth rate on elemental incorporation for both experiments. Finally, we examined the accuracy of classifying individuals to known environmental histories (temperature and barium treatments) using vertebral elemental composition. Temperature had strong, negative effects on the uptake of magnesium (DMg) and barium (DBa) and positively influenced manganese (DMn) incorporation. Temperature-dependent responses were not observed for lithium and strontium. Vertebral Ba/Ca was positively correlated with ambient Ba/Ca. Partition coefficients (DBa) revealed increased discrimination of barium in response to increased dissolved barium concentrations. There were no significant relationships between elemental incorporation and somatic growth or vertebral precipitation rates for any elements except Zn. Relationships between somatic growth rate and DZn were, however, inconsistent and inconclusive. Variation in the vertebral elemental signatures of U. halleri reliably distinguished individual rays from each treatment based on temperature (85%) and Ba exposure (96%) history. These results support the assumption that vertebral elemental composition reflects the environmental conditions during deposition and validates the use of vertebral elemental signatures as natural markers in an elasmobranch. Vertebral elemental analysis is a promising tool for the study of elasmobranch population structure, movement, and habitat use.

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Section: Discussionmentioning

confidence: 99%

Elemental Markers in Elasmobranchs: Effects of Environmental History and Growth on Vertebral Chemistry

2013

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“…) and other ecological factors (Ruttenberg et al . ; Friedrich and Halden ) exert a minor but significant influence on element incorporation and thus otolith elemental concentrations. Various quantitative estimates suggest that 25% of calcium (Farrell and Campana ), 10–34% of Sr (Farrell and Campana ; Walther and Thorrold ; Gibson‐Reinemer et al .…”

Section: Introductionmentioning

confidence: 99%

“…An increasing number of comparative studies have demonstrated species differences not only in the measured otolith composition (Geffen et al . ; Gillanders ; Hamer and Jenkins ; Friedrich and Halden ; Brown and Severin ), but more importantly as a consequence of differences during mineralization (Melancon et al . ).…”

Section: Introductionmentioning

confidence: 99%

Taxonomic and geographic influences on fish otolith microchemistry

Chang

Geffen

2012

Fish and Fisheries

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Fish otoliths are comprised primarily of CaCO3 and grow throughout an individual's lifetime. The chemical composition of otoliths is often a distinctive characteristic of the populations that live in discrete areas, and as a result, it has been used for population classification studies, supporting ecological and fisheries research. However, the deposition of chemical elements in the otolith is influenced by both physiological and environmental factors. We review observed trends in otolith elemental composition and then test the taxonomic and geographical patterns, using marine species in European waters. anova comparisons and multivariate analyses revealed strong taxonomic signals in species inhabiting the same region. Variations in Sr, Mg, Mn and Ba concentrations were most often species specific; for example, multivariate analyses showed separation of cod (Gadus morhua) and herring (Clupea harengus) based primarily on Mg and Sr concentrations, while Mn and Ba concentrations separated bluemouth (Helicolenus dactylopterus) and sole (Solea solea). The relative contributions of taxonomic and regional factors varied between elements. For cod and herring, for example, species‐specific differences explain 75% of the variation for Mn, but only 50% of the variation in Sr. Although there are significant regional differences within a single species on both a restricted and extensive geographic scale, these regional patterns are not the same for each species. As the amount of otolith composition data increases, representing more species and regions, as well as longer time series, further analyses can provide a deeper insight into the predictability of using otolith data in fisheries ecology.

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“…Otolith Se analysis is particularly valuable because, in addition to providing an estimate for the age of a fish, otoliths incorporate contaminants such as Se as the fish grows, creating a time series of exposure [16,20]. Otolith Se analysis is particularly valuable because, in addition to providing an estimate for the age of a fish, otoliths incorporate contaminants such as Se as the fish grows, creating a time series of exposure [16,20].…”

Section: Discussionmentioning

confidence: 99%

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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Alkali Element Uptake in Otoliths: A Link Between the Environment and Otolith Microchemistry

Cited by 27 publications

References 16 publications

Elemental Markers in Elasmobranchs: Effects of Environmental History and Growth on Vertebral Chemistry

Elemental Markers in Elasmobranchs: Effects of Environmental History and Growth on Vertebral Chemistry

Taxonomic and geographic influences on fish otolith microchemistry

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

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