2016
DOI: 10.1139/cjfas-2016-0103
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87Sr/86Sr isotope ratio analysis by laser ablation MC-ICP-MS in scales, spines, and fin rays as a nonlethal alternative to otoliths for reconstructing fish life history

Abstract: Strontium isotope ratios (87Sr/86Sr) in otoliths are a well-established tool to determine origins and movement patterns of fish. However, otolith extraction requires sacrificing fish, and when working with protected or endangered species, the use of nonlethal samples such as scales, spines, and fin rays is preferred. Unlike otoliths that are predominantly aragonite, these tissues are composed of biological apatite. Laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) analys… Show more

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Cited by 25 publications
(16 citation statements)
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“…The 213-nm ultraviolet laser had a pulse repetition frequency of 10 Hz, with a 65-µm beam spot size and 60-µm spacing between spots. Correction and monitoring for potential interferences followed established protocols (Vroon et al 2008;Lewis et al 2014;Willmes et al 2016). In brief, we normalized the 87 Sr: 86 Sr value for instrumental mass discrimination by monitoring the 86 Sr: 88 Sr isotope ratio (assuming 86 Sr: 88 Sr = 0.1194), and 87 Rb was corrected by monitoring the 85 Rb signal.…”
Section: Methodsmentioning
confidence: 99%
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“…The 213-nm ultraviolet laser had a pulse repetition frequency of 10 Hz, with a 65-µm beam spot size and 60-µm spacing between spots. Correction and monitoring for potential interferences followed established protocols (Vroon et al 2008;Lewis et al 2014;Willmes et al 2016). In brief, we normalized the 87 Sr: 86 Sr value for instrumental mass discrimination by monitoring the 86 Sr: 88 Sr isotope ratio (assuming 86 Sr: 88 Sr = 0.1194), and 87 Rb was corrected by monitoring the 85 Rb signal.…”
Section: Methodsmentioning
confidence: 99%
“…Higher mass resolution settings (i.e., 6,000-12,000 M/ΔM) are capable of resolving 40 Ca 31 P 16 O and 40 Ar 31 P 16 O from 87 Sr but would simultaneously reduce the measured signal of strontium by 90-95%, making analytical uncertainties too large within the 65-µm spatial resolution needed to assess potential movement in this experiment. Thus, to account for these polyatomic interferences while maintaining the needed spatial resolution, the MC-ICP mass spectrometer was optimized under nominal mass resolution settings and was tuned to reduce oxide rates (Lewis et al 2014;Willmes et al 2016). Polyatomics were monitored by proxy on mass 104 ( 88 Sr+ 16 O) using an ion counter (discrete-dynode electron multiplier detector; IC0).…”
Section: Methodsmentioning
confidence: 99%
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“…Additionally to its four stable isotopes, strontium has twenty nine radioactive isotopes [7], which defines as the property of a nuclide of undergoing spontaneous nuclear transformations with the emission of radiation [23], The unstable 89 Sr and 90 Sr result from anthropogenic activity [24]. They are formed during nuclear reactor operations and nuclear explosions by the fission of uranium and plutonium ( 235 U, 238 U or 239 Pu) [7].…”
Section: General Considerationsmentioning
confidence: 99%