Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount
Sponge grounds are hotspots of biomass and biodiversity in the otherwise barren deep sea. It remains unknown how these ecosystems can thrive in such food limited environments, since organic matter settling from the surface ocean covers only small parts of their carbon demand. In this study, the food...
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2020
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.923765 https://doi.org/10.1594/PANGAEA.923765 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.923765 2024-09-15T18:22:33+00:00 Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount Hanz, Ulrike Mienis, Furu Riekenberg, Philip MEDIAN LATITUDE: 45.901157 * MEDIAN LONGITUDE: 34.664478 * SOUTH-BOUND LATITUDE: 5.562300 * WEST-BOUND LONGITUDE: 7.442300 * NORTH-BOUND LATITUDE: 73.982650 * EAST-BOUND LONGITUDE: 73.830200 * DATE/TIME START: 2016-06-20T15:34:00 * DATE/TIME END: 2018-08-06T07:10:00 2020 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.923765 https://doi.org/10.1594/PANGAEA.923765 en eng PANGAEA Hanz, Ulrike; Riekenberg, Philip; de Kluijver, Anna; van der Meer, Marcel T J; Middelburg, Jack J; de Goeij, Jasper M; Bart, Martijn C; Wurz, Erik; Colaço, Ana; Duineveld, Gerard C A; Reichart, Gert-Jan; Rapp, Hans Tore; Mienis, Furu (accepted): The important role of sponges in carbon and nitrogen cycling in a deep-sea biological hotspot. Functional Ecology https://doi.pangaea.de/10.1594/PANGAEA.923765 https://doi.org/10.1594/PANGAEA.923765 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess amino acids B_LANDER Bottom lander deep-sea sponge grounds Deep-sea Sponge Grounds Ecosystems of the North Atlantic fatty acids Food web G. O. Sars (2003) GS16A-202 GS2016109A GS2016109A-07-LAN-01 GS2017110 GS2017110-17-LAN-04 GS2017110-18-ROV9 GS2017110-19-ROV10 GS2017110-34-ROV-15 GS2017110-38-ROV-16 GS2017110-40-ROV-17 GS2018108 GS2018108-16-ROV-10 GS2018108-18-ROV-11 GS2018108-21-ROV-14 GS2018108-33-ROV-21 GS2018108-35-ROV-23 Remote operated vehicle ROV Schultz Bank SponGES stable isotope analysis dataset bundled publication 2020 ftpangaea https://doi.org/10.1594/PANGAEA.923765 2024-07-30T23:42:28Z Sponge grounds are hotspots of biomass and biodiversity in the otherwise barren deep sea. It remains unknown how these ecosystems can thrive in such food limited environments, since organic matter settling from the surface ocean covers only small parts of their carbon demand. In this study, the food-web interactions and potential food sources of a North Atlantic deep-sea sponge reef were identified by bulk and compound-specific stable isotope analysis of amino and fatty acids. The elevated bulk δ15N values of sponges with relatively low abundance of associated microbes (LMA) is in line with a position at the top of the benthic food web, while the relatively high δ13C and intermediate δ15N values of high microbial abundance (HMA) sponges suggest considerable reliance on an alternate resource. Trophic positions based on amino acid δ15N values placed HMA sponges at the base of the food web. Fatty acid analysis of δ13C indicated transfer of sponge derived organic matter to the wider food web. Our results show that sponges drive both bottom-up and top-down processes, shunting organic carbon to higher trophic levels that would otherwise be inaccessible to other fauna. In this way, sponges are key to the sustenance of thriving deep-sea ecosystems. Other/Unknown Material North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(7.442300,73.830200,73.982650,5.562300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
amino acids B_LANDER Bottom lander deep-sea sponge grounds Deep-sea Sponge Grounds Ecosystems of the North Atlantic fatty acids Food web G. O. Sars (2003) GS16A-202 GS2016109A GS2016109A-07-LAN-01 GS2017110 GS2017110-17-LAN-04 GS2017110-18-ROV9 GS2017110-19-ROV10 GS2017110-34-ROV-15 GS2017110-38-ROV-16 GS2017110-40-ROV-17 GS2018108 GS2018108-16-ROV-10 GS2018108-18-ROV-11 GS2018108-21-ROV-14 GS2018108-33-ROV-21 GS2018108-35-ROV-23 Remote operated vehicle ROV Schultz Bank SponGES stable isotope analysis |
spellingShingle |
amino acids B_LANDER Bottom lander deep-sea sponge grounds Deep-sea Sponge Grounds Ecosystems of the North Atlantic fatty acids Food web G. O. Sars (2003) GS16A-202 GS2016109A GS2016109A-07-LAN-01 GS2017110 GS2017110-17-LAN-04 GS2017110-18-ROV9 GS2017110-19-ROV10 GS2017110-34-ROV-15 GS2017110-38-ROV-16 GS2017110-40-ROV-17 GS2018108 GS2018108-16-ROV-10 GS2018108-18-ROV-11 GS2018108-21-ROV-14 GS2018108-33-ROV-21 GS2018108-35-ROV-23 Remote operated vehicle ROV Schultz Bank SponGES stable isotope analysis Hanz, Ulrike Mienis, Furu Riekenberg, Philip Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount |
topic_facet |
amino acids B_LANDER Bottom lander deep-sea sponge grounds Deep-sea Sponge Grounds Ecosystems of the North Atlantic fatty acids Food web G. O. Sars (2003) GS16A-202 GS2016109A GS2016109A-07-LAN-01 GS2017110 GS2017110-17-LAN-04 GS2017110-18-ROV9 GS2017110-19-ROV10 GS2017110-34-ROV-15 GS2017110-38-ROV-16 GS2017110-40-ROV-17 GS2018108 GS2018108-16-ROV-10 GS2018108-18-ROV-11 GS2018108-21-ROV-14 GS2018108-33-ROV-21 GS2018108-35-ROV-23 Remote operated vehicle ROV Schultz Bank SponGES stable isotope analysis |
description |
Sponge grounds are hotspots of biomass and biodiversity in the otherwise barren deep sea. It remains unknown how these ecosystems can thrive in such food limited environments, since organic matter settling from the surface ocean covers only small parts of their carbon demand. In this study, the food-web interactions and potential food sources of a North Atlantic deep-sea sponge reef were identified by bulk and compound-specific stable isotope analysis of amino and fatty acids. The elevated bulk δ15N values of sponges with relatively low abundance of associated microbes (LMA) is in line with a position at the top of the benthic food web, while the relatively high δ13C and intermediate δ15N values of high microbial abundance (HMA) sponges suggest considerable reliance on an alternate resource. Trophic positions based on amino acid δ15N values placed HMA sponges at the base of the food web. Fatty acid analysis of δ13C indicated transfer of sponge derived organic matter to the wider food web. Our results show that sponges drive both bottom-up and top-down processes, shunting organic carbon to higher trophic levels that would otherwise be inaccessible to other fauna. In this way, sponges are key to the sustenance of thriving deep-sea ecosystems. |
format |
Other/Unknown Material |
author |
Hanz, Ulrike Mienis, Furu Riekenberg, Philip |
author_facet |
Hanz, Ulrike Mienis, Furu Riekenberg, Philip |
author_sort |
Hanz, Ulrike |
title |
Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount |
title_short |
Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount |
title_full |
Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount |
title_fullStr |
Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount |
title_full_unstemmed |
Isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an Arctic North Atlantic seamount |
title_sort |
isotope data of deep sea fauna, organic matter and sediment of a sponge ground on an arctic north atlantic seamount |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.923765 https://doi.org/10.1594/PANGAEA.923765 |
op_coverage |
MEDIAN LATITUDE: 45.901157 * MEDIAN LONGITUDE: 34.664478 * SOUTH-BOUND LATITUDE: 5.562300 * WEST-BOUND LONGITUDE: 7.442300 * NORTH-BOUND LATITUDE: 73.982650 * EAST-BOUND LONGITUDE: 73.830200 * DATE/TIME START: 2016-06-20T15:34:00 * DATE/TIME END: 2018-08-06T07:10:00 |
long_lat |
ENVELOPE(7.442300,73.830200,73.982650,5.562300) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Hanz, Ulrike; Riekenberg, Philip; de Kluijver, Anna; van der Meer, Marcel T J; Middelburg, Jack J; de Goeij, Jasper M; Bart, Martijn C; Wurz, Erik; Colaço, Ana; Duineveld, Gerard C A; Reichart, Gert-Jan; Rapp, Hans Tore; Mienis, Furu (accepted): The important role of sponges in carbon and nitrogen cycling in a deep-sea biological hotspot. Functional Ecology https://doi.pangaea.de/10.1594/PANGAEA.923765 https://doi.org/10.1594/PANGAEA.923765 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.923765 |
_version_ |
1810462411733336064 |