Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web
Stable isotopes of carbon (δ13C) and nitrogen (δ15N) were used to examine trophic structures in an arctic marine food web at small and large spatial scales. Twelve species, from primary consumers to Greenland shark, were sampled at a large spatial scale near the west and east coasts of Greenland. Th...
Published in: | Marine Ecology Progress Series |
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2012
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ftuniaarhuspubl:oai:pure.atira.dk:publications/5f9524b9-e55a-4400-89f2-583bea2273ce 2023-05-15T14:25:35+02:00 Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web Hansen, Joan Holst Hedeholm, Rasmus Berg Sünksen, Kaj Christensen, Jens Tang Grønkjær, P. 2012-10-25 https://pure.au.dk/portal/da/publications/spatial-variability-of-carbon-13c-and-nitrogen-15n-stable-isotope-ratios-in-an-arctic-marine-food-web(5f9524b9-e55a-4400-89f2-583bea2273ce).html https://doi.org/10.3354/meps09945 eng eng info:eu-repo/semantics/restrictedAccess Hansen , J H , Hedeholm , R B , Sünksen , K , Christensen , J T & Grønkjær , P 2012 , ' Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web ' , Marine Ecology - Progress Series , vol. 467 , pp. 47-59 . https://doi.org/10.3354/meps09945 Greenland Latitudinal effects Marine food web Ecohydrography Isoscapes article 2012 ftuniaarhuspubl https://doi.org/10.3354/meps09945 2020-07-18T21:20:49Z Stable isotopes of carbon (δ13C) and nitrogen (δ15N) were used to examine trophic structures in an arctic marine food web at small and large spatial scales. Twelve species, from primary consumers to Greenland shark, were sampled at a large spatial scale near the west and east coasts of Greenland. There was a significant positive latitudinal effect on δ15N values, which varied by 2 to 5‰ over the sample range. This latitudinal pattern was also illustrated by the negative correlation between the productive open-water period and baseline δ15N values. At a smaller spatial scale, 8 species from the Nuuk Fjord were compared with species sampled in waters immediately offshore. All values of δ15N and δ13C (except for Calanus finmarchicus) were more enriched inshore than offshore. The use of C. finmarchicus δ15N and δ13C values as a baseline explained a portion of the spatial variability in isotopes, attributing some of the variation to physical and biological sources. Hence, significant differences in isotopic signatures on both large and small spatial scales were less related to food web structure than to different physical and biological properties of the water masses. Accordingly, the results illustrate the importance of spatial variability when interpreting trophic structure from stable isotopes. Article in Journal/Newspaper Arctic Arctic Calanus finmarchicus Greenland Nuuk Aarhus University: Research Arctic Greenland Nuuk ENVELOPE(-52.150,-52.150,68.717,68.717) Marine Ecology Progress Series 467 47 59 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Greenland Latitudinal effects Marine food web Ecohydrography Isoscapes |
spellingShingle |
Greenland Latitudinal effects Marine food web Ecohydrography Isoscapes Hansen, Joan Holst Hedeholm, Rasmus Berg Sünksen, Kaj Christensen, Jens Tang Grønkjær, P. Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web |
topic_facet |
Greenland Latitudinal effects Marine food web Ecohydrography Isoscapes |
description |
Stable isotopes of carbon (δ13C) and nitrogen (δ15N) were used to examine trophic structures in an arctic marine food web at small and large spatial scales. Twelve species, from primary consumers to Greenland shark, were sampled at a large spatial scale near the west and east coasts of Greenland. There was a significant positive latitudinal effect on δ15N values, which varied by 2 to 5‰ over the sample range. This latitudinal pattern was also illustrated by the negative correlation between the productive open-water period and baseline δ15N values. At a smaller spatial scale, 8 species from the Nuuk Fjord were compared with species sampled in waters immediately offshore. All values of δ15N and δ13C (except for Calanus finmarchicus) were more enriched inshore than offshore. The use of C. finmarchicus δ15N and δ13C values as a baseline explained a portion of the spatial variability in isotopes, attributing some of the variation to physical and biological sources. Hence, significant differences in isotopic signatures on both large and small spatial scales were less related to food web structure than to different physical and biological properties of the water masses. Accordingly, the results illustrate the importance of spatial variability when interpreting trophic structure from stable isotopes. |
format |
Article in Journal/Newspaper |
author |
Hansen, Joan Holst Hedeholm, Rasmus Berg Sünksen, Kaj Christensen, Jens Tang Grønkjær, P. |
author_facet |
Hansen, Joan Holst Hedeholm, Rasmus Berg Sünksen, Kaj Christensen, Jens Tang Grønkjær, P. |
author_sort |
Hansen, Joan Holst |
title |
Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web |
title_short |
Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web |
title_full |
Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web |
title_fullStr |
Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web |
title_full_unstemmed |
Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web |
title_sort |
spatial variability of carbon (δ 13 c) and nitrogen (δ 15 n) stable isotope ratios in an arctic marine food web |
publishDate |
2012 |
url |
https://pure.au.dk/portal/da/publications/spatial-variability-of-carbon-13c-and-nitrogen-15n-stable-isotope-ratios-in-an-arctic-marine-food-web(5f9524b9-e55a-4400-89f2-583bea2273ce).html https://doi.org/10.3354/meps09945 |
long_lat |
ENVELOPE(-52.150,-52.150,68.717,68.717) |
geographic |
Arctic Greenland Nuuk |
geographic_facet |
Arctic Greenland Nuuk |
genre |
Arctic Arctic Calanus finmarchicus Greenland Nuuk |
genre_facet |
Arctic Arctic Calanus finmarchicus Greenland Nuuk |
op_source |
Hansen , J H , Hedeholm , R B , Sünksen , K , Christensen , J T & Grønkjær , P 2012 , ' Spatial variability of carbon (δ 13 C) and nitrogen (δ 15 N) stable isotope ratios in an Arctic marine food web ' , Marine Ecology - Progress Series , vol. 467 , pp. 47-59 . https://doi.org/10.3354/meps09945 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3354/meps09945 |
container_title |
Marine Ecology Progress Series |
container_volume |
467 |
container_start_page |
47 |
op_container_end_page |
59 |
_version_ |
1766298031911600128 |