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Field metabolic rates of teleost fishes are recorded in otolith carbonate

Field metabolic rates of teleost fishes are recorded in otolith carbonate
Field metabolic rates of teleost fishes are recorded in otolith carbonate
Field metabolic rate (FMR) is key to understanding individual and population-level responses to environmental changes, but is challenging to measure in field conditions, particularly in aquatic environments. Here we show that FMR can be estimated directly from the isotopic composition of carbon in fish otoliths (δ13Coto). We describe the relationship between δ13Coto values and oxygen consumption rate, and report results from laboratory experiments relating individual-level measurements of oxygen consumption rates to δ13Coto values in Atlantic cod (Gadus morhua). We apply our new δ13Coto metabolic proxy to existing δ13Coto data from wild cod and four deepwater fish species to test the validity of inferred FMR estimates. The δ13Coto metabolic proxy offers a new approach to study physiological ecology in free-ranging wild fishes. Otolith-based proxies for FMR are particularly promising as they allow retrospective assessment of time-integrated, individual-level FMR throughout an individual fish’s life history.
1-10
Chung, Ming-Tsung
f6bb2904-ec3a-4986-9624-95f5fed6ec91
Trueman, Clive N.
d00d3bd6-a47b-4d47-89ae-841c3d506205
Aanestad Godiksen, Jane
ee8f65a7-9023-4827-bdd6-8ef8acf3867a
Engell Holmstrup, Mathias
76cd5307-f00e-46ac-91be-d6e5ae4da3d9
Grønkjær, Peter
56dc4dc7-3820-4323-bfac-e2ae21ff9f62
Chung, Ming-Tsung
f6bb2904-ec3a-4986-9624-95f5fed6ec91
Trueman, Clive N.
d00d3bd6-a47b-4d47-89ae-841c3d506205
Aanestad Godiksen, Jane
ee8f65a7-9023-4827-bdd6-8ef8acf3867a
Engell Holmstrup, Mathias
76cd5307-f00e-46ac-91be-d6e5ae4da3d9
Grønkjær, Peter
56dc4dc7-3820-4323-bfac-e2ae21ff9f62

Chung, Ming-Tsung, Trueman, Clive N., Aanestad Godiksen, Jane, Engell Holmstrup, Mathias and Grønkjær, Peter (2019) Field metabolic rates of teleost fishes are recorded in otolith carbonate. Communications Biology, 2, 1-10, [24]. (doi:10.1038/s42003-018-0266-5).

Record type: Article

Abstract

Field metabolic rate (FMR) is key to understanding individual and population-level responses to environmental changes, but is challenging to measure in field conditions, particularly in aquatic environments. Here we show that FMR can be estimated directly from the isotopic composition of carbon in fish otoliths (δ13Coto). We describe the relationship between δ13Coto values and oxygen consumption rate, and report results from laboratory experiments relating individual-level measurements of oxygen consumption rates to δ13Coto values in Atlantic cod (Gadus morhua). We apply our new δ13Coto metabolic proxy to existing δ13Coto data from wild cod and four deepwater fish species to test the validity of inferred FMR estimates. The δ13Coto metabolic proxy offers a new approach to study physiological ecology in free-ranging wild fishes. Otolith-based proxies for FMR are particularly promising as they allow retrospective assessment of time-integrated, individual-level FMR throughout an individual fish’s life history.

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s42003-018-0266-5 - Version of Record
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More information

Accepted/In Press date: 12 December 2018
e-pub ahead of print date: 18 January 2019
Published date: 18 January 2019

Identifiers

Local EPrints ID: 427982
URI: http://eprints.soton.ac.uk/id/eprint/427982
PURE UUID: 932580ce-d577-4478-9554-eeeb53b5b2e3

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Date deposited: 06 Feb 2019 17:30
Last modified: 25 Nov 2021 20:23

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Contributors

Author: Ming-Tsung Chung
Author: Jane Aanestad Godiksen
Author: Mathias Engell Holmstrup
Author: Peter Grønkjær

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