Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem
Seabirds are important vectors for nutrient transfer across ecosystem boundaries. In this seasonal study, we evaluate the impact of an Arctic colony (Alkhornet, Svalbard) of Black-legged Kittiwakes (Rissa tridactyla) and Brünnich’s Guillemots (Uria lomvia) on stream nutrient concentrations and fuxes...
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2022
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Online Access: | https://hdl.handle.net/11250/2992286 https://doi.org/10.1007/s00300-022-03024-5 |
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ftunivbergen:oai:bora.uib.no:11250/2992286 2023-05-15T15:00:39+02:00 Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem Finne, Eirik Aasmo Varpe, Øystein Durant, Joël Gabrielsen, Geir W. Poste, Amanda 2022 application/pdf https://hdl.handle.net/11250/2992286 https://doi.org/10.1007/s00300-022-03024-5 eng eng Springer Egen institusjon: University Centre in Svalbard Norges forskningsråd: 268458 Egen institusjon: University of Oslo Andre: Jan Christensen’s endowment grant Andre: The Nansen Legacy; No. 276730) urn:issn:0722-4060 https://hdl.handle.net/11250/2992286 https://doi.org/10.1007/s00300-022-03024-5 cristin:2011795 Polar Biology. 2022 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2022 The Author(s) Polar Biology VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Journal article Peer reviewed 2022 ftunivbergen https://doi.org/10.1007/s00300-022-03024-5 2023-03-14T17:40:58Z Seabirds are important vectors for nutrient transfer across ecosystem boundaries. In this seasonal study, we evaluate the impact of an Arctic colony (Alkhornet, Svalbard) of Black-legged Kittiwakes (Rissa tridactyla) and Brünnich’s Guillemots (Uria lomvia) on stream nutrient concentrations and fuxes, as well as utilization by coastal biota. Water samples from seabird-impacted and control streams were collected regularly throughout the melt season (June–September) for nutrient and organic carbon analysis. Stable carbon and nitrogen isotope analysis (δ13C and δ15N) was used to assess whether seabird derived nitrogen (N) could be traced into flamentous stream algae and marine algae as well as consumers (amphipods). Concentrations of nitrate (NO3−) and nitrite (NO2) peaked in July at 9200 µg N L−1 in seabird-impacted streams, 70 times higher than for control streams. Mean concentrations of phosphate (PO4 3−) in seabird-impacted streams were 21.9 µg P L−1, tenfold higher than in controls. Areal fuxes from seabird-impacted study catchments of NO3− + NO2− and PO4 3− had estimated ranges of 400–2100 kg N km−2 and 15–70 kg P km−2, respectively. Higher δ15N was found in all biota collected from seabird-impacted sites, indicating utilization of seabird-derived nitrogen. Acrosiphonia sp. from seabird-impacted sites had higher δ15N values (20–23‰ vs. 3–6‰) and lower C:N ratios (10.9 vs. 14.3) than specimens collected from control sites, indicating reliance on seabird-derived nitrogen sources and potentially higher N-availability at seabird-impacted nearshore sites. Our study demonstrates how marine nutrients brought onshore by seabirds also can return to the ocean and be utilized by nearshore primary producers and consumers. Cross-ecosystem fuxes · Runof · Svalbard · Seabird guano · Rissa tridactyla · Uria lomvia · Macroalgae publishedVersion Article in Journal/Newspaper Arctic Polar Biology rissa tridactyla Svalbard Uria lomvia uria University of Bergen: Bergen Open Research Archive (BORA-UiB) Alkhornet ENVELOPE(13.823,13.823,78.213,78.213) Arctic Guano ENVELOPE(141.604,141.604,-66.775,-66.775) Svalbard Polar Biology |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Finne, Eirik Aasmo Varpe, Øystein Durant, Joël Gabrielsen, Geir W. Poste, Amanda Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Seabirds are important vectors for nutrient transfer across ecosystem boundaries. In this seasonal study, we evaluate the impact of an Arctic colony (Alkhornet, Svalbard) of Black-legged Kittiwakes (Rissa tridactyla) and Brünnich’s Guillemots (Uria lomvia) on stream nutrient concentrations and fuxes, as well as utilization by coastal biota. Water samples from seabird-impacted and control streams were collected regularly throughout the melt season (June–September) for nutrient and organic carbon analysis. Stable carbon and nitrogen isotope analysis (δ13C and δ15N) was used to assess whether seabird derived nitrogen (N) could be traced into flamentous stream algae and marine algae as well as consumers (amphipods). Concentrations of nitrate (NO3−) and nitrite (NO2) peaked in July at 9200 µg N L−1 in seabird-impacted streams, 70 times higher than for control streams. Mean concentrations of phosphate (PO4 3−) in seabird-impacted streams were 21.9 µg P L−1, tenfold higher than in controls. Areal fuxes from seabird-impacted study catchments of NO3− + NO2− and PO4 3− had estimated ranges of 400–2100 kg N km−2 and 15–70 kg P km−2, respectively. Higher δ15N was found in all biota collected from seabird-impacted sites, indicating utilization of seabird-derived nitrogen. Acrosiphonia sp. from seabird-impacted sites had higher δ15N values (20–23‰ vs. 3–6‰) and lower C:N ratios (10.9 vs. 14.3) than specimens collected from control sites, indicating reliance on seabird-derived nitrogen sources and potentially higher N-availability at seabird-impacted nearshore sites. Our study demonstrates how marine nutrients brought onshore by seabirds also can return to the ocean and be utilized by nearshore primary producers and consumers. Cross-ecosystem fuxes · Runof · Svalbard · Seabird guano · Rissa tridactyla · Uria lomvia · Macroalgae publishedVersion |
format |
Article in Journal/Newspaper |
author |
Finne, Eirik Aasmo Varpe, Øystein Durant, Joël Gabrielsen, Geir W. Poste, Amanda |
author_facet |
Finne, Eirik Aasmo Varpe, Øystein Durant, Joël Gabrielsen, Geir W. Poste, Amanda |
author_sort |
Finne, Eirik Aasmo |
title |
Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem |
title_short |
Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem |
title_full |
Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem |
title_fullStr |
Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem |
title_full_unstemmed |
Nutrient fuxes from an Arctic seabird colony to the adjacent coastal marine ecosystem |
title_sort |
nutrient fuxes from an arctic seabird colony to the adjacent coastal marine ecosystem |
publisher |
Springer |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2992286 https://doi.org/10.1007/s00300-022-03024-5 |
long_lat |
ENVELOPE(13.823,13.823,78.213,78.213) ENVELOPE(141.604,141.604,-66.775,-66.775) |
geographic |
Alkhornet Arctic Guano Svalbard |
geographic_facet |
Alkhornet Arctic Guano Svalbard |
genre |
Arctic Polar Biology rissa tridactyla Svalbard Uria lomvia uria |
genre_facet |
Arctic Polar Biology rissa tridactyla Svalbard Uria lomvia uria |
op_source |
Polar Biology |
op_relation |
Egen institusjon: University Centre in Svalbard Norges forskningsråd: 268458 Egen institusjon: University of Oslo Andre: Jan Christensen’s endowment grant Andre: The Nansen Legacy; No. 276730) urn:issn:0722-4060 https://hdl.handle.net/11250/2992286 https://doi.org/10.1007/s00300-022-03024-5 cristin:2011795 Polar Biology. 2022 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2022 The Author(s) |
op_doi |
https://doi.org/10.1007/s00300-022-03024-5 |
container_title |
Polar Biology |
_version_ |
1766332725263859712 |