Tests of size and growth effects on Arctic charr (<scp>Salvelinus alpinus</scp>) otolith δ18O and δ13C values

Burbank, Jacob; Kelly, Brianne; Nilsson, Jan; Power, Michael

doi:10.1002/rcm.8198

Cited by 3 publications

(1 citation statement)

References 59 publications

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“…Studies demonstrated that δ 18 O oto was linked to δ 18 O w and ambient temperature independently of fish growth (Smith and Jones, 2006;Burbank et al, 2018). We also found no significant relationship between δ 18 O oto , average fish growth, and fish age.…”

Section: The Consistent Signature Of δ 18 O Within a Stationcontrasting

confidence: 60%

Reconstructing the thermal history of fish juveniles using stable oxygen isotope analysis of otoliths

Morat

Blamart

Bounket

et al. 2023

Front. Environ. Sci.

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Introduction: Characterizing the thermal habitat of fish is key to understanding their ecological requirements in order to make appropriate management plans for the preservation of fish populations in the context of climate change. Little is known about the thermal habitat of the early life stages of fish (larvae and juveniles), as most methods have been designed for large, easily handled individuals. In particular, the study of otoliths holds great promise for unveiling the early thermal history of fish, although it is challenging to implement due to the very small size of the biological material.Methods: The stable oxygen isotope content (δ18O) of biogenic carbonates (such as otoliths) can be used to reconstruct the life temperature of fish individuals. However, relationships between δ18O of otoliths and ambient temperature are scarce and mainly developed for commercial species. In this study, we assessed the δ18O of juvenile European chub (Squalius cephalus, Linnaeus 1758) living in a section of the lower Rhône River in France.Results: The δ18O of otoliths showed significant relationship with ambient temperature [δ18Ooto(VPDB)- δ18Ow(VPDB) = 33.391 – 0.2641 * T (°C)], and the relationship between temperature and the fractionation factor (α) was 1,000 ln α = −43.472 + 21.205 [1,000/T(K)].Discussion: As expected, back-calculated temperatures from these equations were in much better agreement with the measured in situ temperatures than previously published equations. This equation is the first to be developed for leuciscid fish in Europe and the second in the world.

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Section: The Consistent Signature Of δ 18 O Within a Stationcontrasting

confidence: 60%

Reconstructing the thermal history of fish juveniles using stable oxygen isotope analysis of otoliths

Morat

Blamart

Bounket

et al. 2023

Front. Environ. Sci.

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Variation of δ18O in otoliths of Stellifer lanceolatus and Eucinostomus gula environmental change indicator in Terminos Lagoon, Mexico

Dorantes-Hernández¹,

Torres‐Rojas

Aguíñiga‐García³

et al. 2020

Marine Environmental Research

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Field-based oxygen isotope fractionation for the conservation of imperilled fishes: an application with the threatened silver shiner Notropis photogenis

Burbank

Drake

Power

2020

Endang. Species. Res.

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Identifying the realized thermal habitat of animals is important for understanding life history and population processes, yet methods to estimate realized thermal use are lacking for many small-bodied organisms, including imperilled fishes. Analysis of oxygen isotopes provides one solution, but requires the development of species-specific fractionation equations. To date, such equations have generally been limited to commercial or game fish species. Here, we developed a field-based fractionation equation for the threatened silver shiner Notropis photogenis to better understand the thermal ecology of the species in an urban watershed. Archived otoliths were analyzed for oxygen isotope values (δ18O). There was a significant linear relationship between otolith isotope fractionation and water temperature, described by δ18Ootolith(VPBD) - δ18Owater(VPBD) = 32.03 - 0.21(°C). Results indicate that otolith isotope techniques can be used to identify the average relative temperature occupied by silver shiner, representing the first investigation of oxygen isotopes to understand thermal occupancy of the species. This field-based equation provides an opportunity to understand how silver shiner may respond to alterations in stream temperatures resulting from urbanization and climate effects and may be useful in identifying thermal refugia for the species. Field-based, species-specific fractionation equations can provide insights into the thermal ecology of many small-bodied fishes, which are increasingly imperilled due to thermal stressors.

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Tests of size and growth effects on Arctic charr (Salvelinus alpinus) otolith δ¹⁸O and δ¹³C values

Cited by 3 publications

References 59 publications

Reconstructing the thermal history of fish juveniles using stable oxygen isotope analysis of otoliths

Reconstructing the thermal history of fish juveniles using stable oxygen isotope analysis of otoliths

Variation of δ18O in otoliths of Stellifer lanceolatus and Eucinostomus gula environmental change indicator in Terminos Lagoon, Mexico

Field-based oxygen isotope fractionation for the conservation of imperilled fishes: an application with the threatened silver shiner Notropis photogenis

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Tests of size and growth effects on Arctic charr (Salvelinus alpinus) otolith δ18O and δ13C values

Cited by 3 publications

References 59 publications

Reconstructing the thermal history of fish juveniles using stable oxygen isotope analysis of otoliths

Reconstructing the thermal history of fish juveniles using stable oxygen isotope analysis of otoliths

Variation of δ18O in otoliths of Stellifer lanceolatus and Eucinostomus gula environmental change indicator in Terminos Lagoon, Mexico

Field-based oxygen isotope fractionation for the conservation of imperilled fishes: an application with the threatened silver shiner Notropis photogenis

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Product

Resources

About

Tests of size and growth effects on Arctic charr (Salvelinus alpinus) otolith δ¹⁸O and δ¹³C values