Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years
International audience In Arctic macroalgal belt ecosystems, macrozoobenthicproduction is thought to be an important linkbetween primary production and higher trophic levels.Macrozoobenthic biomass and secondary production werestudied along transects (2.5–15 m depth) in the macroalgalbelt at Hansnes...
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Online Access: | https://hal.science/hal-01243387 https://doi.org/10.1007/s00300-015-1760-6 |
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ftinsu:oai:HAL:hal-01243387v1 2023-05-15T14:54:52+02:00 Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years Paar, Martin Voronkov, Andrey Hop, Haakon Brey, Thomas Bartsch, Inka Schwanitz, Max Wiencke, Christian Lebreton, Benoit Asmus, Ragnhild Asmus, Harald Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI) Tromsø department (IMR) Institute of Marine Research Bergen (IMR) University of Bergen (UiB)-University of Bergen (UiB) Norwegian Polar Institute LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2016 https://hal.science/hal-01243387 https://doi.org/10.1007/s00300-015-1760-6 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1760-6 hal-01243387 https://hal.science/hal-01243387 doi:10.1007/s00300-015-1760-6 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01243387 Polar Biology, 2016, 39, pp.2065-2076. ⟨10.1007/s00300-015-1760-6⟩ Arctic Macrozoobenthic Kelp-associated fauna Benthic biomass Somatic production P/B ratio Kongsfjorden [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2016 ftinsu https://doi.org/10.1007/s00300-015-1760-6 2023-02-15T20:15:36Z International audience In Arctic macroalgal belt ecosystems, macrozoobenthicproduction is thought to be an important linkbetween primary production and higher trophic levels.Macrozoobenthic biomass and secondary production werestudied along transects (2.5–15 m depth) in the macroalgalbelt at Hansneset in Kongsfjorden, Svalbard, from 2012 to2013. At 2.5 m, the standing stock reached its maxima of174.8 ± 54.4 g ash-free dry weight per 1 m2, while density(4341 ind. m-2 ± 1127 95 % CI) and production(7.0 g C m-2 y-1 ± 2.8 95 % CI) were highest at 5 mwater depth in 2012/13. Compared to a study from1996/98, this re-sampling indicated a drastic change in thedepth distribution of macrozoobenthic biomass and secondaryproduction at Hansneset. While both biomass andsecondary production increased with water depth in1996/98, this pattern was inversed in 2012/13 owing to atenfold increase in biomass and secondary production inthe upper most sublittoral (2.5–5 m). Variability ofmacrozoobenthic biomass and secondary production correspondedto differences in the physical environment andmacroalgal vegetation along the depth gradient. In the lastdecade, the number of ice-free days per year increasedprobably due to Arctic warming. As a result, shallow rockyhabitats (2.5–5 m) are less affected by ice scouring,thereby opening new space for colonisation by benthicfauna. However, faunal secondary production was lowcompared to macroalgal primary production, indicating aconsiderable export of most of the algal production fromthe shallow habitats to the adjacent areas. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Polar Biology Svalbard Institut national des sciences de l'Univers: HAL-INSU Arctic Svalbard Polar Biology 39 11 2065 2076 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Arctic Macrozoobenthic Kelp-associated fauna Benthic biomass Somatic production P/B ratio Kongsfjorden [SDE]Environmental Sciences |
spellingShingle |
Arctic Macrozoobenthic Kelp-associated fauna Benthic biomass Somatic production P/B ratio Kongsfjorden [SDE]Environmental Sciences Paar, Martin Voronkov, Andrey Hop, Haakon Brey, Thomas Bartsch, Inka Schwanitz, Max Wiencke, Christian Lebreton, Benoit Asmus, Ragnhild Asmus, Harald Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years |
topic_facet |
Arctic Macrozoobenthic Kelp-associated fauna Benthic biomass Somatic production P/B ratio Kongsfjorden [SDE]Environmental Sciences |
description |
International audience In Arctic macroalgal belt ecosystems, macrozoobenthicproduction is thought to be an important linkbetween primary production and higher trophic levels.Macrozoobenthic biomass and secondary production werestudied along transects (2.5–15 m depth) in the macroalgalbelt at Hansneset in Kongsfjorden, Svalbard, from 2012 to2013. At 2.5 m, the standing stock reached its maxima of174.8 ± 54.4 g ash-free dry weight per 1 m2, while density(4341 ind. m-2 ± 1127 95 % CI) and production(7.0 g C m-2 y-1 ± 2.8 95 % CI) were highest at 5 mwater depth in 2012/13. Compared to a study from1996/98, this re-sampling indicated a drastic change in thedepth distribution of macrozoobenthic biomass and secondaryproduction at Hansneset. While both biomass andsecondary production increased with water depth in1996/98, this pattern was inversed in 2012/13 owing to atenfold increase in biomass and secondary production inthe upper most sublittoral (2.5–5 m). Variability ofmacrozoobenthic biomass and secondary production correspondedto differences in the physical environment andmacroalgal vegetation along the depth gradient. In the lastdecade, the number of ice-free days per year increasedprobably due to Arctic warming. As a result, shallow rockyhabitats (2.5–5 m) are less affected by ice scouring,thereby opening new space for colonisation by benthicfauna. However, faunal secondary production was lowcompared to macroalgal primary production, indicating aconsiderable export of most of the algal production fromthe shallow habitats to the adjacent areas. |
author2 |
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI) Tromsø department (IMR) Institute of Marine Research Bergen (IMR) University of Bergen (UiB)-University of Bergen (UiB) Norwegian Polar Institute LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Paar, Martin Voronkov, Andrey Hop, Haakon Brey, Thomas Bartsch, Inka Schwanitz, Max Wiencke, Christian Lebreton, Benoit Asmus, Ragnhild Asmus, Harald |
author_facet |
Paar, Martin Voronkov, Andrey Hop, Haakon Brey, Thomas Bartsch, Inka Schwanitz, Max Wiencke, Christian Lebreton, Benoit Asmus, Ragnhild Asmus, Harald |
author_sort |
Paar, Martin |
title |
Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years |
title_short |
Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years |
title_full |
Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years |
title_fullStr |
Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years |
title_full_unstemmed |
Temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at Hansneset, Kongsfjorden, after 15 years |
title_sort |
temporal shift in biomass and production of macrozoobenthos in the macroalgal belt at hansneset, kongsfjorden, after 15 years |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01243387 https://doi.org/10.1007/s00300-015-1760-6 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Kongsfjord* Kongsfjorden Polar Biology Svalbard |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Polar Biology Svalbard |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01243387 Polar Biology, 2016, 39, pp.2065-2076. ⟨10.1007/s00300-015-1760-6⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1760-6 hal-01243387 https://hal.science/hal-01243387 doi:10.1007/s00300-015-1760-6 |
op_doi |
https://doi.org/10.1007/s00300-015-1760-6 |
container_title |
Polar Biology |
container_volume |
39 |
container_issue |
11 |
container_start_page |
2065 |
op_container_end_page |
2076 |
_version_ |
1766326614711336960 |