Identifying migrations in marine fishes through stable-isotope analysis
Identifying migrations in marine fishes through stable-isotope analysis
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.
chemical proxy, fishes, movement, oceanic, tracking
826-847
Trueman, C.N.
d00d3bd6-a47b-4d47-89ae-841c3d506205
MacKenzie, K.M.
512f2b73-f8e4-4ab4-8d91-16c0a2084120
Palmer, M.R.
d2e60e81-5d6e-4ddb-a243-602537286080
July 2012
Trueman, C.N.
d00d3bd6-a47b-4d47-89ae-841c3d506205
MacKenzie, K.M.
512f2b73-f8e4-4ab4-8d91-16c0a2084120
Palmer, M.R.
d2e60e81-5d6e-4ddb-a243-602537286080
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), .
(doi:10.1111/j.1095-8649.2012.03361.x).
Abstract
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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Published date: July 2012
Keywords:
chemical proxy, fishes, movement, oceanic, tracking
Organisations:
Geochemistry
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Local EPrints ID: 341755
URI: http://eprints.soton.ac.uk/id/eprint/341755
ISSN: 0022-1112
PURE UUID: ec192c34-2925-472e-a6d1-584b45a84a54
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Date deposited: 02 Aug 2012 13:52
Last modified: 15 Mar 2024 03:17
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Author:
K.M. MacKenzie
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