Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material
Macroalgae, in particular kelps, produce a large amount of biomass in Kongsfjorden, which is to a great extent released into the water in an annual cycle. As an example, the brown alga Alaria esculenta loses its blade gradually, 3 ± 0.8 % of the blade area per day (August 2012), thereby adding to th...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.857530 2023-05-15T15:13:45+02:00 Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material Buchholz, Cornelia Maria Wiencke, Christian LATITUDE: 78.985100 * LONGITUDE: 11.965900 * MINIMUM ELEVATION: 5.0 m * MAXIMUM ELEVATION: 5.0 m 2015-01-29 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 40.1 kBytes https://doi.pangaea.de/10.1594/PANGAEA.857530 https://doi.org/10.1594/PANGAEA.857530 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.857530 https://doi.org/10.1594/PANGAEA.857530 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Buchholz, Cornelia Maria; Wiencke, Christian (2015): Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM). Polar Biology, 12 pp, https://doi.org/10.1007/s00300-015-1828-3 DIVER Hansneset Kongsfjorden Spitsbergen Arctic Sampling by diver Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.857530 https://doi.org/10.1007/s00300-015-1828-3 2023-01-20T09:06:49Z Macroalgae, in particular kelps, produce a large amount of biomass in Kongsfjorden, which is to a great extent released into the water in an annual cycle. As an example, the brown alga Alaria esculenta loses its blade gradually, 3 ± 0.8 % of the blade area per day (August 2012), thereby adding to the pool of particulate organic matter (POM) in the fjord. Upon release small thallus pieces are “aging” in that they are prone to leaching and serving as substrate for microorganisms, thus turning into palatable food for suspension and bottom feeders. In order to define a macroalgal baseline for the Kongsfjorden food web, stable isotopes d14C and d15N were measured in individuals of A. esculenta, Saccharina latissima and Laminaria digitata directly sampled after collection and in artificially produced POM (aPOM) of A. esculenta that was allowed to age under experimental conditions. In aPOM from this species sampled in August 2012 the C/N ratios decreased between d1 and d8 of a 14-day culture period in parallel to the fading photosynthetic activity of the algal fragments as demonstrated by use of an Imaging-PAM. Microscopic observations of the aPOM in August 2012 and 2013 revealed the frequent occurrence of small brown algal endo- and epiphytes. First feeding experiments with Mysis oculata (Mysids) and Hiatella arctica (Bivalves) showed that these species can ingest macroalgal POM. The importance of kelp-derived POM for the food web is subject of the current research. Dataset Arctic Kongsfjord* Kongsfjorden Polar Biology Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(11.965900,11.965900,78.985100,78.985100) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
DIVER Hansneset Kongsfjorden Spitsbergen Arctic Sampling by diver |
spellingShingle |
DIVER Hansneset Kongsfjorden Spitsbergen Arctic Sampling by diver Buchholz, Cornelia Maria Wiencke, Christian Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material |
topic_facet |
DIVER Hansneset Kongsfjorden Spitsbergen Arctic Sampling by diver |
description |
Macroalgae, in particular kelps, produce a large amount of biomass in Kongsfjorden, which is to a great extent released into the water in an annual cycle. As an example, the brown alga Alaria esculenta loses its blade gradually, 3 ± 0.8 % of the blade area per day (August 2012), thereby adding to the pool of particulate organic matter (POM) in the fjord. Upon release small thallus pieces are “aging” in that they are prone to leaching and serving as substrate for microorganisms, thus turning into palatable food for suspension and bottom feeders. In order to define a macroalgal baseline for the Kongsfjorden food web, stable isotopes d14C and d15N were measured in individuals of A. esculenta, Saccharina latissima and Laminaria digitata directly sampled after collection and in artificially produced POM (aPOM) of A. esculenta that was allowed to age under experimental conditions. In aPOM from this species sampled in August 2012 the C/N ratios decreased between d1 and d8 of a 14-day culture period in parallel to the fading photosynthetic activity of the algal fragments as demonstrated by use of an Imaging-PAM. Microscopic observations of the aPOM in August 2012 and 2013 revealed the frequent occurrence of small brown algal endo- and epiphytes. First feeding experiments with Mysis oculata (Mysids) and Hiatella arctica (Bivalves) showed that these species can ingest macroalgal POM. The importance of kelp-derived POM for the food web is subject of the current research. |
format |
Dataset |
author |
Buchholz, Cornelia Maria Wiencke, Christian |
author_facet |
Buchholz, Cornelia Maria Wiencke, Christian |
author_sort |
Buchholz, Cornelia Maria |
title |
Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material |
title_short |
Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material |
title_full |
Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material |
title_fullStr |
Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material |
title_full_unstemmed |
Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM), supplementary material |
title_sort |
working on a baseline for the kongsfjorden food web: production and properties of macroalgal particulate organic matter (pom), supplementary material |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.857530 https://doi.org/10.1594/PANGAEA.857530 |
op_coverage |
LATITUDE: 78.985100 * LONGITUDE: 11.965900 * MINIMUM ELEVATION: 5.0 m * MAXIMUM ELEVATION: 5.0 m |
long_lat |
ENVELOPE(11.965900,11.965900,78.985100,78.985100) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Kongsfjord* Kongsfjorden Polar Biology Spitsbergen |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Polar Biology Spitsbergen |
op_source |
Supplement to: Buchholz, Cornelia Maria; Wiencke, Christian (2015): Working on a baseline for the Kongsfjorden food web: production and properties of macroalgal particulate organic matter (POM). Polar Biology, 12 pp, https://doi.org/10.1007/s00300-015-1828-3 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.857530 https://doi.org/10.1594/PANGAEA.857530 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.857530 https://doi.org/10.1007/s00300-015-1828-3 |
_version_ |
1766344272002416640 |