Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915)
Abstract Sponges are often major players in the functioning of shallow-water ecosystems through their high biomass and high capacity in filter feeding. In comparison, little is known about the feeding and metabolic strategies of deep-sea sponges, although they can also form dense aggregations with h...
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ftzenodo:oai:zenodo.org:1971528 2024-09-15T18:24:42+00:00 Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) Kazanidis, Georgios van Oevelen, Dick Veuger, Bart Witte, Ursula F.M. 2018-07-12 https://doi.org/10.1016/j.dsr.2018.07.009 unknown Zenodo https://zenodo.org/communities/atlas https://zenodo.org/communities/eu https://doi.org/10.1016/j.dsr.2018.07.009 oai:zenodo.org:1971528 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cold-water coral reefs (CWCRs) sponges epibionts essential amino acids bentho-pelagic coupling marine food webs info:eu-repo/semantics/article 2018 ftzenodo https://doi.org/10.1016/j.dsr.2018.07.009 2024-07-26T13:35:04Z Abstract Sponges are often major players in the functioning of shallow-water ecosystems through their high biomass and high capacity in filter feeding. In comparison, little is known about the feeding and metabolic strategies of deep-sea sponges, although they can also form dense aggregations with high biomass. This situation hinders our understanding about how some sponge species thrive under the often food-limited conditions of the deep sea. In the present study we examined the feeding and metabolic strategies of 1) the massive demosponge Spongosorites coralliophaga, which was recently described as an important ecosystem engineer in cold-water coral reefs (CWCRs) and 2) the anthozoan Parazoanthus anguicomus and the ophiuroid Ophiura ophiura, i.e. two dominant epibionts on S. coralliophaga. All three benthic species have high density at CWCRs of the North-East Atlantic and knowing their feeding strategies facilitates future studies on carbon (C) and nitrogen (N) cycling at CWCRs. The on-board feeding experiments examined the processing of four isotopically-labelled food sources, namely 15N-ammonium chloride, 13C-glucose, 13C/15N-labelled microalgae, 13C/15N-labelled bacteria by S. coralliophaga and its symbiotic bacteria and the epibionts P. anguicomus and O. ophiura from the Mingulay reef complex and the Logachev mound (North-East Atlantic). There were no significant differences among the three species in terms of biomass-specific C and N assimilation rates; however, there were differences among S. coralliophaga, P. anguicomus and O. ophiura in how they processed the food sources and this is may be linked to interspecific variability in metabolic needs. S. coralliophaga preferentially assimilated particulate organic N (PON) over particulate organic C (POC) while this was not the case for P. anguicomus and O. ophiura. We did not detect the 15N tracer in the bacterial biomarker D-Alanine suggesting that the preferential assimilation of N over C in S. coralliophaga was mediated by sponge cells instead of the ... Article in Journal/Newspaper North East Atlantic Zenodo Deep Sea Research Part I: Oceanographic Research Papers 141 71 82 |
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op_collection_id |
ftzenodo |
language |
unknown |
topic |
cold-water coral reefs (CWCRs) sponges epibionts essential amino acids bentho-pelagic coupling marine food webs |
spellingShingle |
cold-water coral reefs (CWCRs) sponges epibionts essential amino acids bentho-pelagic coupling marine food webs Kazanidis, Georgios van Oevelen, Dick Veuger, Bart Witte, Ursula F.M. Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) |
topic_facet |
cold-water coral reefs (CWCRs) sponges epibionts essential amino acids bentho-pelagic coupling marine food webs |
description |
Abstract Sponges are often major players in the functioning of shallow-water ecosystems through their high biomass and high capacity in filter feeding. In comparison, little is known about the feeding and metabolic strategies of deep-sea sponges, although they can also form dense aggregations with high biomass. This situation hinders our understanding about how some sponge species thrive under the often food-limited conditions of the deep sea. In the present study we examined the feeding and metabolic strategies of 1) the massive demosponge Spongosorites coralliophaga, which was recently described as an important ecosystem engineer in cold-water coral reefs (CWCRs) and 2) the anthozoan Parazoanthus anguicomus and the ophiuroid Ophiura ophiura, i.e. two dominant epibionts on S. coralliophaga. All three benthic species have high density at CWCRs of the North-East Atlantic and knowing their feeding strategies facilitates future studies on carbon (C) and nitrogen (N) cycling at CWCRs. The on-board feeding experiments examined the processing of four isotopically-labelled food sources, namely 15N-ammonium chloride, 13C-glucose, 13C/15N-labelled microalgae, 13C/15N-labelled bacteria by S. coralliophaga and its symbiotic bacteria and the epibionts P. anguicomus and O. ophiura from the Mingulay reef complex and the Logachev mound (North-East Atlantic). There were no significant differences among the three species in terms of biomass-specific C and N assimilation rates; however, there were differences among S. coralliophaga, P. anguicomus and O. ophiura in how they processed the food sources and this is may be linked to interspecific variability in metabolic needs. S. coralliophaga preferentially assimilated particulate organic N (PON) over particulate organic C (POC) while this was not the case for P. anguicomus and O. ophiura. We did not detect the 15N tracer in the bacterial biomarker D-Alanine suggesting that the preferential assimilation of N over C in S. coralliophaga was mediated by sponge cells instead of the ... |
format |
Article in Journal/Newspaper |
author |
Kazanidis, Georgios van Oevelen, Dick Veuger, Bart Witte, Ursula F.M. |
author_facet |
Kazanidis, Georgios van Oevelen, Dick Veuger, Bart Witte, Ursula F.M. |
author_sort |
Kazanidis, Georgios |
title |
Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) |
title_short |
Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) |
title_full |
Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) |
title_fullStr |
Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) |
title_full_unstemmed |
Unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer Spongosorites coralliophaga (Stephens, 1915) |
title_sort |
unravelling the versatile feeding and metabolic strategies of the cold-water ecosystem engineer spongosorites coralliophaga (stephens, 1915) |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://doi.org/10.1016/j.dsr.2018.07.009 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
https://zenodo.org/communities/atlas https://zenodo.org/communities/eu https://doi.org/10.1016/j.dsr.2018.07.009 oai:zenodo.org:1971528 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.1016/j.dsr.2018.07.009 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
141 |
container_start_page |
71 |
op_container_end_page |
82 |
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1810465115026227200 |