Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon
<qd> MacKenzie, K. M., Trueman, C. N., Palmer, M. R., Moore, A., Ibbotson, A. T., Beaumont, W. R. C., and Davidson, I. C. 2012. Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon from the UK. – ICES Journal of Marine...
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fthighwire:oai:open-archive.highwire.org:icesjms:69/9/1637 2023-05-15T17:22:39+02:00 Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon MacKenzie, Kirsteen M. Trueman, Clive N. Palmer, Martin R. Moore, Andy Ibbotson, Anton T. Beaumont, William R. C. Davidson, Ian C. 2012-11-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/69/9/1637 https://doi.org/10.1093/icesjms/fss074 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/69/9/1637 http://dx.doi.org/10.1093/icesjms/fss074 Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2012 fthighwire https://doi.org/10.1093/icesjms/fss074 2012-10-19T20:52:55Z <qd> MacKenzie, K. M., Trueman, C. N., Palmer, M. R., Moore, A., Ibbotson, A. T., Beaumont, W. R. C., and Davidson, I. C. 2012. Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon from the UK. – ICES Journal of Marine Science, 69: 1637–1645. </qd>Locating and differentiating the marine feeding areas used by adult salmon ( Salmo salar ) is essential to stock-based management and conservation, but traditional tagging studies are limited and influenced by the uneven distribution of the fisheries or research vessel surveys. Here, a novel approach is used, based on the observation that the isotopic composition of animal tissues is intrinsically linked to the environmental conditions during tissue growth, which allows for the distinction of pelagic fish feeding in different locations. This isotopic approach is applied using archived collections of salmon scales and shows that (i) salmon act as size-structured pelagic predators, (ii) adult salmon from different natal origins within the UK (and hence components of the southern European stock complex) feed in different oceanic regions before their return, (iii) one-sea-winter (1SW) and multi-sea-winter salmon returning to some rivers in the UK are separated in their marine feeding areas, whereas those from others are not, and (iv) salmon from the rivers sampled are not feeding in regions of the Northwest Atlantic used by 1SW salmon returning to rivers in Newfoundland. Therefore, the stable isotope approach allows for retrospective investigations of marine diet, location, and migration at stock- and cohort-specific levels. Text Newfoundland Northwest Atlantic Salmo salar HighWire Press (Stanford University) Davidson ENVELOPE(-44.766,-44.766,-60.766,-60.766) ICES Journal of Marine Science 69 9 1637 1645 |
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Articles MacKenzie, Kirsteen M. Trueman, Clive N. Palmer, Martin R. Moore, Andy Ibbotson, Anton T. Beaumont, William R. C. Davidson, Ian C. Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
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description |
<qd> MacKenzie, K. M., Trueman, C. N., Palmer, M. R., Moore, A., Ibbotson, A. T., Beaumont, W. R. C., and Davidson, I. C. 2012. Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon from the UK. – ICES Journal of Marine Science, 69: 1637–1645. </qd>Locating and differentiating the marine feeding areas used by adult salmon ( Salmo salar ) is essential to stock-based management and conservation, but traditional tagging studies are limited and influenced by the uneven distribution of the fisheries or research vessel surveys. Here, a novel approach is used, based on the observation that the isotopic composition of animal tissues is intrinsically linked to the environmental conditions during tissue growth, which allows for the distinction of pelagic fish feeding in different locations. This isotopic approach is applied using archived collections of salmon scales and shows that (i) salmon act as size-structured pelagic predators, (ii) adult salmon from different natal origins within the UK (and hence components of the southern European stock complex) feed in different oceanic regions before their return, (iii) one-sea-winter (1SW) and multi-sea-winter salmon returning to some rivers in the UK are separated in their marine feeding areas, whereas those from others are not, and (iv) salmon from the rivers sampled are not feeding in regions of the Northwest Atlantic used by 1SW salmon returning to rivers in Newfoundland. Therefore, the stable isotope approach allows for retrospective investigations of marine diet, location, and migration at stock- and cohort-specific levels. |
format |
Text |
author |
MacKenzie, Kirsteen M. Trueman, Clive N. Palmer, Martin R. Moore, Andy Ibbotson, Anton T. Beaumont, William R. C. Davidson, Ian C. |
author_facet |
MacKenzie, Kirsteen M. Trueman, Clive N. Palmer, Martin R. Moore, Andy Ibbotson, Anton T. Beaumont, William R. C. Davidson, Ian C. |
author_sort |
MacKenzie, Kirsteen M. |
title |
Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
title_short |
Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
title_full |
Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
title_fullStr |
Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
title_full_unstemmed |
Stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
title_sort |
stable isotopes reveal age-dependent trophic level and spatial segregation during adult marine feeding in populations of salmon |
publisher |
Oxford University Press |
publishDate |
2012 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/69/9/1637 https://doi.org/10.1093/icesjms/fss074 |
long_lat |
ENVELOPE(-44.766,-44.766,-60.766,-60.766) |
geographic |
Davidson |
geographic_facet |
Davidson |
genre |
Newfoundland Northwest Atlantic Salmo salar |
genre_facet |
Newfoundland Northwest Atlantic Salmo salar |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/69/9/1637 http://dx.doi.org/10.1093/icesjms/fss074 |
op_rights |
Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fss074 |
container_title |
ICES Journal of Marine Science |
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69 |
container_issue |
9 |
container_start_page |
1637 |
op_container_end_page |
1645 |
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1766109450863640576 |