(Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5
Stable isotope (SI) ratios of carbon (d13C) and nitrogen (d15N) were measured in omnivorous and carnivorous deep-sea copepods of the families Euchaetidae and Aetideidae across the Atlantic sector of the Southern Ocean to establish their trophic positions. Due to high and variable C/N ratios related...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848509 2024-09-15T17:43:26+00:00 (Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 Laakmann, Silke Auel, Holger MEDIAN LATITUDE: -51.605175 * MEDIAN LONGITUDE: -26.361958 * SOUTH-BOUND LATITUDE: -52.295800 * WEST-BOUND LONGITUDE: -53.895500 * NORTH-BOUND LATITUDE: -51.469800 * EAST-BOUND LONGITUDE: -2.084600 * DATE/TIME START: 2006-04-16T14:42:00 * DATE/TIME END: 2006-04-25T11:35:00 * MINIMUM ELEVATION: -4838.0 m * MAXIMUM ELEVATION: -2097.0 m 2010 text/tab-separated-values, 488 data points https://doi.pangaea.de/10.1594/PANGAEA.848509 https://doi.org/10.1594/PANGAEA.848509 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848509 https://doi.org/10.1594/PANGAEA.848509 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Laakmann, Silke; Auel, Holger (2009): Longitudinal and vertical trends in stable isotope signatures (d13C and d15N) of omnivorous and carnivorous copepods across the South Atlantic Ocean. Marine Biology, 157(3), 463-471, https://doi.org/10.1007/s00227-009-1332-9 ANT-XXIII/5 AWI Carbon/Nitrogen ratio Date/Time of event Depth bottom/max top/min Element analyser isotope ratio mass spectrometer (EA-IRMS) Elevation of event Event label Latitude of event Life stage Longitude of event MSN Multiple opening/closing net Number of individuals Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/342-1 PS69/343-1 PS69/344-1 PS69/345-1 PS69/346-1 PS69/347-1 PS69/348-1 PS69/349-1 PS69/350-1 PS69/351-1 Species SPP1158 Station label δ13C δ15N dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.84850910.1007/s00227-009-1332-9 2024-08-13T23:45:38Z Stable isotope (SI) ratios of carbon (d13C) and nitrogen (d15N) were measured in omnivorous and carnivorous deep-sea copepods of the families Euchaetidae and Aetideidae across the Atlantic sector of the Southern Ocean to establish their trophic positions. Due to high and variable C/N ratios related to differences in lipid content, d13C was corrected using a lipid-normalisation model. d15N signals ranged from 3.0-6.9 per mil in mesopelagic species to 7.0-9.5 per mil in bathypelagic congeners. Among the carnivorous Paraeuchaeta species, the epi- to mesopelagic species Paraeuchaeta antarctica had lower d15N values than the mesopelagic P. rasa and bathypelagic P. barbata. The same trend was observed among omnivorous Aetideidae, but was not significant. In the most abundant species P. antarctica, individuals from the western Atlantic had higher d13C and d15N values than specimens at the eastern stations. These longitudinal changes in d13C and d15N values were attributed to regional differences in hydrography and sea surface temperature (SST), in particular related to a northward extension of the Antarctic Polar Front (APF) at the easternmost stations. The results indicate that even in a mesopelagic carnivorous species, the changes in surface stable isotope signatures are pronounced. Dataset Antarc* Antarctic Antarctica Sea ice Southern Ocean Copepods PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-53.895500,-2.084600,-51.469800,-52.295800) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ANT-XXIII/5 AWI Carbon/Nitrogen ratio Date/Time of event Depth bottom/max top/min Element analyser isotope ratio mass spectrometer (EA-IRMS) Elevation of event Event label Latitude of event Life stage Longitude of event MSN Multiple opening/closing net Number of individuals Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/342-1 PS69/343-1 PS69/344-1 PS69/345-1 PS69/346-1 PS69/347-1 PS69/348-1 PS69/349-1 PS69/350-1 PS69/351-1 Species SPP1158 Station label δ13C δ15N |
spellingShingle |
ANT-XXIII/5 AWI Carbon/Nitrogen ratio Date/Time of event Depth bottom/max top/min Element analyser isotope ratio mass spectrometer (EA-IRMS) Elevation of event Event label Latitude of event Life stage Longitude of event MSN Multiple opening/closing net Number of individuals Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/342-1 PS69/343-1 PS69/344-1 PS69/345-1 PS69/346-1 PS69/347-1 PS69/348-1 PS69/349-1 PS69/350-1 PS69/351-1 Species SPP1158 Station label δ13C δ15N Laakmann, Silke Auel, Holger (Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 |
topic_facet |
ANT-XXIII/5 AWI Carbon/Nitrogen ratio Date/Time of event Depth bottom/max top/min Element analyser isotope ratio mass spectrometer (EA-IRMS) Elevation of event Event label Latitude of event Life stage Longitude of event MSN Multiple opening/closing net Number of individuals Polarstern Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas PS69 PS69/342-1 PS69/343-1 PS69/344-1 PS69/345-1 PS69/346-1 PS69/347-1 PS69/348-1 PS69/349-1 PS69/350-1 PS69/351-1 Species SPP1158 Station label δ13C δ15N |
description |
Stable isotope (SI) ratios of carbon (d13C) and nitrogen (d15N) were measured in omnivorous and carnivorous deep-sea copepods of the families Euchaetidae and Aetideidae across the Atlantic sector of the Southern Ocean to establish their trophic positions. Due to high and variable C/N ratios related to differences in lipid content, d13C was corrected using a lipid-normalisation model. d15N signals ranged from 3.0-6.9 per mil in mesopelagic species to 7.0-9.5 per mil in bathypelagic congeners. Among the carnivorous Paraeuchaeta species, the epi- to mesopelagic species Paraeuchaeta antarctica had lower d15N values than the mesopelagic P. rasa and bathypelagic P. barbata. The same trend was observed among omnivorous Aetideidae, but was not significant. In the most abundant species P. antarctica, individuals from the western Atlantic had higher d13C and d15N values than specimens at the eastern stations. These longitudinal changes in d13C and d15N values were attributed to regional differences in hydrography and sea surface temperature (SST), in particular related to a northward extension of the Antarctic Polar Front (APF) at the easternmost stations. The results indicate that even in a mesopelagic carnivorous species, the changes in surface stable isotope signatures are pronounced. |
format |
Dataset |
author |
Laakmann, Silke Auel, Holger |
author_facet |
Laakmann, Silke Auel, Holger |
author_sort |
Laakmann, Silke |
title |
(Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 |
title_short |
(Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 |
title_full |
(Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 |
title_fullStr |
(Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 |
title_full_unstemmed |
(Table 2) Stable carbon and nitrogen isotope ratios and molar C/N ratio for euchaetid and aetideid copepods during POLARSTERN cruise ANT-XXIII/5 |
title_sort |
(table 2) stable carbon and nitrogen isotope ratios and molar c/n ratio for euchaetid and aetideid copepods during polarstern cruise ant-xxiii/5 |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.848509 https://doi.org/10.1594/PANGAEA.848509 |
op_coverage |
MEDIAN LATITUDE: -51.605175 * MEDIAN LONGITUDE: -26.361958 * SOUTH-BOUND LATITUDE: -52.295800 * WEST-BOUND LONGITUDE: -53.895500 * NORTH-BOUND LATITUDE: -51.469800 * EAST-BOUND LONGITUDE: -2.084600 * DATE/TIME START: 2006-04-16T14:42:00 * DATE/TIME END: 2006-04-25T11:35:00 * MINIMUM ELEVATION: -4838.0 m * MAXIMUM ELEVATION: -2097.0 m |
long_lat |
ENVELOPE(-53.895500,-2.084600,-51.469800,-52.295800) |
genre |
Antarc* Antarctic Antarctica Sea ice Southern Ocean Copepods |
genre_facet |
Antarc* Antarctic Antarctica Sea ice Southern Ocean Copepods |
op_source |
Supplement to: Laakmann, Silke; Auel, Holger (2009): Longitudinal and vertical trends in stable isotope signatures (d13C and d15N) of omnivorous and carnivorous copepods across the South Atlantic Ocean. Marine Biology, 157(3), 463-471, https://doi.org/10.1007/s00227-009-1332-9 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.848509 https://doi.org/10.1594/PANGAEA.848509 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.84850910.1007/s00227-009-1332-9 |
_version_ |
1810490417764892672 |