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Identifying migrations in marine fishes through stable-isotope analysis

Record type: Article

The isotopic composition of many elements varies across both land and ocean surfaces in a predictable fashion. These stable-isotope ratios are transferred into animal tissues, potentially providing a powerful natural geospatial tag. To date, most studies using stable isotopes as geolocators in marine settings have focussed on mammals and seabirds conducting large ocean-basin scale migrations. An increasing understanding of isotopic variation in the marine environment, and improved sampling and analytical techniques, however, means that stable isotopes now hold genuine promise as a natural geolocation tag in marine fishes. Here, the theoretical background underpinning the use of stable isotopes of C, N and O in otolith, scale and muscle tissues as geolocation tools in the marine environment is reviewed, and examples of their applications are provided.

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Citation

Trueman, C.N., MacKenzie, K.M. and Palmer, M.R. (2012) Identifying migrations in marine fishes through stable-isotope analysis Journal of Fish Biology, 81, (2), pp. 826-847. (doi:10.1111/j.1095-8649.2012.03361.x).

More information

Published date: July 2012
Keywords: chemical proxy, fishes, movement, oceanic, tracking
Organisations: Geochemistry

Identifiers

Local EPrints ID: 341755
URI: http://eprints.soton.ac.uk/id/eprint/341755
ISSN: 0022-1112
PURE UUID: ec192c34-2925-472e-a6d1-584b45a84a54

Catalogue record

Date deposited: 02 Aug 2012 13:52
Last modified: 18 Jul 2017 05:32

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Contributors

Author: C.N. Trueman
Author: K.M. MacKenzie
Author: M.R. Palmer

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