Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa
The ability of the cold-water coral Lophelia pertusa to exploit different food sources was investigated under standardized conditions in a flume. The tested food sources, dissolved organic matter (DOM, added as dissolved free amino acids), bacteria, algae, and zooplankton ( Artemia ) were deliberate...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2014
|
Subjects: | |
Online Access: | https://doi.org/10.5194/bg-11-123-2014 https://doaj.org/article/d87ecaa116154376b1f05d7eefd23f06 |
id |
ftdoajarticles:oai:doaj.org/article:d87ecaa116154376b1f05d7eefd23f06 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:d87ecaa116154376b1f05d7eefd23f06 2023-05-15T17:08:39+02:00 Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa C. E. Mueller A. I. Larsson B. Veuger J. J. Middelburg D. van Oevelen 2014-01-01T00:00:00Z https://doi.org/10.5194/bg-11-123-2014 https://doaj.org/article/d87ecaa116154376b1f05d7eefd23f06 EN eng Copernicus Publications http://www.biogeosciences.net/11/123/2014/bg-11-123-2014.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-11-123-2014 https://doaj.org/article/d87ecaa116154376b1f05d7eefd23f06 Biogeosciences, Vol 11, Iss 1, Pp 123-133 (2014) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2014 ftdoajarticles https://doi.org/10.5194/bg-11-123-2014 2022-12-31T03:04:03Z The ability of the cold-water coral Lophelia pertusa to exploit different food sources was investigated under standardized conditions in a flume. The tested food sources, dissolved organic matter (DOM, added as dissolved free amino acids), bacteria, algae, and zooplankton ( Artemia ) were deliberately enriched in 13 C and 15 N. The incorporation of 13 C and 15 N was traced into bulk tissue, fatty acids, hydrolysable amino acids, and the skeleton ( 13 C only) of L. pertusa . Incorporation rates of carbon (ranging from 0.8–2.4 μg C g −1 DW d –1 ) and nitrogen (0.2–0.8 μg N g −1 DW d –1 ) into coral tissue did not differ significantly among food sources indicating an opportunistic feeding strategy. Although total food assimilation was comparable among sources, subsequent food processing was dependent on the type of food source ingested and recovery of assimilated C in tissue compounds ranged from 17% (algae) to 35% ( Artemia ). De novo synthesis of individual fatty acids by L. pertusa occurred in all treatments as indicated by the 13 C enrichment of individual phospholipid-derived fatty acids (PLFAs) in the coral that were absent in the added food sources. This indicates that the coral might be less dependent on its diet as a source of specific fatty acids than expected, with direct consequences for the interpretation of in situ observations on coral nutrition based on lipid profiles. Article in Journal/Newspaper Lophelia pertusa Directory of Open Access Journals: DOAJ Articles Biogeosciences 11 1 123 133 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 C. E. Mueller A. I. Larsson B. Veuger J. J. Middelburg D. van Oevelen Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
The ability of the cold-water coral Lophelia pertusa to exploit different food sources was investigated under standardized conditions in a flume. The tested food sources, dissolved organic matter (DOM, added as dissolved free amino acids), bacteria, algae, and zooplankton ( Artemia ) were deliberately enriched in 13 C and 15 N. The incorporation of 13 C and 15 N was traced into bulk tissue, fatty acids, hydrolysable amino acids, and the skeleton ( 13 C only) of L. pertusa . Incorporation rates of carbon (ranging from 0.8–2.4 μg C g −1 DW d –1 ) and nitrogen (0.2–0.8 μg N g −1 DW d –1 ) into coral tissue did not differ significantly among food sources indicating an opportunistic feeding strategy. Although total food assimilation was comparable among sources, subsequent food processing was dependent on the type of food source ingested and recovery of assimilated C in tissue compounds ranged from 17% (algae) to 35% ( Artemia ). De novo synthesis of individual fatty acids by L. pertusa occurred in all treatments as indicated by the 13 C enrichment of individual phospholipid-derived fatty acids (PLFAs) in the coral that were absent in the added food sources. This indicates that the coral might be less dependent on its diet as a source of specific fatty acids than expected, with direct consequences for the interpretation of in situ observations on coral nutrition based on lipid profiles. |
format |
Article in Journal/Newspaper |
author |
C. E. Mueller A. I. Larsson B. Veuger J. J. Middelburg D. van Oevelen |
author_facet |
C. E. Mueller A. I. Larsson B. Veuger J. J. Middelburg D. van Oevelen |
author_sort |
C. E. Mueller |
title |
Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa |
title_short |
Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa |
title_full |
Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa |
title_fullStr |
Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa |
title_full_unstemmed |
Opportunistic feeding on various organic food sources by the cold-water coral Lophelia pertusa |
title_sort |
opportunistic feeding on various organic food sources by the cold-water coral lophelia pertusa |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/bg-11-123-2014 https://doaj.org/article/d87ecaa116154376b1f05d7eefd23f06 |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_source |
Biogeosciences, Vol 11, Iss 1, Pp 123-133 (2014) |
op_relation |
http://www.biogeosciences.net/11/123/2014/bg-11-123-2014.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-11-123-2014 https://doaj.org/article/d87ecaa116154376b1f05d7eefd23f06 |
op_doi |
https://doi.org/10.5194/bg-11-123-2014 |
container_title |
Biogeosciences |
container_volume |
11 |
container_issue |
1 |
container_start_page |
123 |
op_container_end_page |
133 |
_version_ |
1766064463372353536 |