Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica)
Unidad de excelencia María de Maeztu MdM-2015-0552 In the Southern Ocean, the trophic ecology of deep-sea communities is probably one of the most neglected fields in the discipline. In the present study, the trophic position and energy storage-mobilization of 3 different deep-sea echinoderms living...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://ddd.uab.cat/record/190624 |
id |
ftuabarcelonapb:oai:ddd.uab.cat:190624 |
---|---|
record_format |
openpolar |
spelling |
ftuabarcelonapb:oai:ddd.uab.cat:190624 2023-05-15T13:53:29+02:00 Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) Rossi, Sergio Elias Piera, Francyne 2018 application/pdf https://ddd.uab.cat/record/190624 eng eng Ministerio de Economía y Competitividad MDM-2015-0552 Ministerio de Economía y Competitividad REN2000-3096-E/ANT European Commission 327845 European Commission 665919 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1356 Marine Ecology Progress Series Vol. 596, (May 2018), p. 143-153 https://ddd.uab.cat/record/190624 urn:10.3354/meps12544 urn:oai:ddd.uab.cat:190624 urn:articleid:01718630v596p143 urn:scopus_id:85047771935 urn:wos_id:000434051700011 urn:oai:egreta.uab.cat:publications/75153a40-094c-47f2-aa87-d635b55acdcd open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ Suspension feeders Deposit feeders Fatty acids Stable isotopes Energy storage Antarctica Biomarkers Deep sea Article 2018 ftuabarcelonapb 2023-02-06T21:14:30Z Unidad de excelencia María de Maeztu MdM-2015-0552 In the Southern Ocean, the trophic ecology of deep-sea communities is probably one of the most neglected fields in the discipline. In the present study, the trophic position and energy storage-mobilization of 3 different deep-sea echinoderms living in the Weddell Sea (around 1500 m depth) were investigated with indirect tools (i.e. stable isotopes, carbohydrate-lipid-protein balance, and free fatty acid [FFA] contents). The stalked crinoid Dumetocrinus antarcticus, the holothurian Rhipidothuria racovitzai, and the ophiuroid Ophiura carinifera were sampled in spring 2003 during a Polarstern cruise. We found that stable isotopes were in line with previous results of other species (δ¹³C ranging from -24.3‰ to -26.5‰; δ¹⁵N ranging from 6.8‰ to 7.9‰), showing similarities in the trophic position of the 3 echinoderms. The capability to store energy by these 3 organisms is conspicuous and different, e.g. from 18 to 45% of the organic matter (OM) consists of lipids. The capability to mobilize energy in the form of carbohydrates and FFAs among species was also very different (e.g. biomolecules ranging from 9 to 22 µg carbohydrates mgOM⁻¹ and from 4 to 39 µg FFA mgOM⁻¹). It is suggested that even if the trophic level is similar in the 3 echinoderms, the strategies to invest the energy inputs in these deep-sea organisms in polar environments may be quite different. Article in Journal/Newspaper Antarc* Antarctica antarcticus Southern Ocean Weddell Sea Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Southern Ocean Weddell Weddell Sea Marine Ecology Progress Series 596 143 153 |
institution |
Open Polar |
collection |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
op_collection_id |
ftuabarcelonapb |
language |
English |
topic |
Suspension feeders Deposit feeders Fatty acids Stable isotopes Energy storage Antarctica Biomarkers Deep sea |
spellingShingle |
Suspension feeders Deposit feeders Fatty acids Stable isotopes Energy storage Antarctica Biomarkers Deep sea Rossi, Sergio Elias Piera, Francyne Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) |
topic_facet |
Suspension feeders Deposit feeders Fatty acids Stable isotopes Energy storage Antarctica Biomarkers Deep sea |
description |
Unidad de excelencia María de Maeztu MdM-2015-0552 In the Southern Ocean, the trophic ecology of deep-sea communities is probably one of the most neglected fields in the discipline. In the present study, the trophic position and energy storage-mobilization of 3 different deep-sea echinoderms living in the Weddell Sea (around 1500 m depth) were investigated with indirect tools (i.e. stable isotopes, carbohydrate-lipid-protein balance, and free fatty acid [FFA] contents). The stalked crinoid Dumetocrinus antarcticus, the holothurian Rhipidothuria racovitzai, and the ophiuroid Ophiura carinifera were sampled in spring 2003 during a Polarstern cruise. We found that stable isotopes were in line with previous results of other species (δ¹³C ranging from -24.3‰ to -26.5‰; δ¹⁵N ranging from 6.8‰ to 7.9‰), showing similarities in the trophic position of the 3 echinoderms. The capability to store energy by these 3 organisms is conspicuous and different, e.g. from 18 to 45% of the organic matter (OM) consists of lipids. The capability to mobilize energy in the form of carbohydrates and FFAs among species was also very different (e.g. biomolecules ranging from 9 to 22 µg carbohydrates mgOM⁻¹ and from 4 to 39 µg FFA mgOM⁻¹). It is suggested that even if the trophic level is similar in the 3 echinoderms, the strategies to invest the energy inputs in these deep-sea organisms in polar environments may be quite different. |
format |
Article in Journal/Newspaper |
author |
Rossi, Sergio Elias Piera, Francyne |
author_facet |
Rossi, Sergio Elias Piera, Francyne |
author_sort |
Rossi, Sergio |
title |
Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) |
title_short |
Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) |
title_full |
Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) |
title_fullStr |
Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) |
title_full_unstemmed |
Trophic ecology of three echinoderms in deep waters of the Weddell Sea (Antarctica) |
title_sort |
trophic ecology of three echinoderms in deep waters of the weddell sea (antarctica) |
publishDate |
2018 |
url |
https://ddd.uab.cat/record/190624 |
geographic |
Southern Ocean Weddell Weddell Sea |
geographic_facet |
Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctica antarcticus Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctica antarcticus Southern Ocean Weddell Sea |
op_relation |
Ministerio de Economía y Competitividad MDM-2015-0552 Ministerio de Economía y Competitividad REN2000-3096-E/ANT European Commission 327845 European Commission 665919 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1356 Marine Ecology Progress Series Vol. 596, (May 2018), p. 143-153 https://ddd.uab.cat/record/190624 urn:10.3354/meps12544 urn:oai:ddd.uab.cat:190624 urn:articleid:01718630v596p143 urn:scopus_id:85047771935 urn:wos_id:000434051700011 urn:oai:egreta.uab.cat:publications/75153a40-094c-47f2-aa87-d635b55acdcd |
op_rights |
open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ |
container_title |
Marine Ecology Progress Series |
container_volume |
596 |
container_start_page |
143 |
op_container_end_page |
153 |
_version_ |
1766258642611339264 |