Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen
In the Arctic the currently observed rising air temperature results in more frequent calving of icebergs. The latter are derived from tidewater glaciers. Arctic macrozoobenthic soft-sediment communities are considerably disturbed by direct hits and sediment reallocation caused by iceberg scouring. W...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.859583 2023-05-15T14:25:54+02:00 Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen Nowak, Christopher A Laudien, Jürgen Sahade, Ricardo José LATITUDE: 78.947800 * LONGITUDE: 11.852650 * DATE/TIME START: 2003-06-17T00:00:00 * DATE/TIME END: 2007-09-04T00:00:00 2016-04-14 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.859583 https://doi.org/10.1594/PANGAEA.859583 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.859583 https://doi.org/10.1594/PANGAEA.859583 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Nowak, Christopher A; Laudien, Jürgen; Sahade, Ricardo José (2016): Rising temperatures and sea ice-free winters affect the succession of Arctic macrozoobenthic soft-sediment communities (Kongsfjorden, Svalbard). Polar Biology, 39(11), 2097–2113, https://doi.org/10.1007/s00300-016-1995-x Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.859583 https://doi.org/10.1007/s00300-016-1995-x 2023-01-20T07:33:43Z In the Arctic the currently observed rising air temperature results in more frequent calving of icebergs. The latter are derived from tidewater glaciers. Arctic macrozoobenthic soft-sediment communities are considerably disturbed by direct hits and sediment reallocation caused by iceberg scouring. With the aim to describe the primary succession of macrozoobenthic communities following these events, scientific divers installed 28 terracotta containers in the soft-sediment off Brandal (Kongsfjorden, Svalbard, Norway) at 20 m water depth in 2002. The containers were filled with a bentonite-sand-mixture resembling the natural sediment. Samples were taken annually between 2003 and 2007. A shift from pioneering species (e.g. Cumacea: Lamprops fuscatus) towards more specialized taxa, as well as from surface-detritivores towards subsurface-detritivores was observed. This is typical for an ecological succession following the facilitation and inhibition succession model. Similarity between experimental and non-manipulated communities from 2003 was significantly highest after three years of succession. In the following years similarity decreased, probably due to elevated temperatures, which prevented the fjord-system from freezing. Some organisms numerically important in the non-manipulated community (e.g., the polychaete Dipolydora quadrilobata) did not colonies the substrate during the experiment. This suggests that the community had not fully matured within the first three years. Later, the settlement was probably impeded by consequences of warming temperatures. This demonstrates the long-lasting effects of severe disturbances on Arctic macrozoobenthic communities. Furthermore, environmental changes, such as rising temperatures coupled with enhanced food availability due to an increasing frequency of ice-free days per year, may have a stronger effect on succession than exposure time. Dataset Arctic Arctic Iceberg* Kongsfjord* Kongsfjorden Polar Biology Svalbard Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic Norway Svalbard ENVELOPE(11.852650,11.852650,78.947800,78.947800) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
In the Arctic the currently observed rising air temperature results in more frequent calving of icebergs. The latter are derived from tidewater glaciers. Arctic macrozoobenthic soft-sediment communities are considerably disturbed by direct hits and sediment reallocation caused by iceberg scouring. With the aim to describe the primary succession of macrozoobenthic communities following these events, scientific divers installed 28 terracotta containers in the soft-sediment off Brandal (Kongsfjorden, Svalbard, Norway) at 20 m water depth in 2002. The containers were filled with a bentonite-sand-mixture resembling the natural sediment. Samples were taken annually between 2003 and 2007. A shift from pioneering species (e.g. Cumacea: Lamprops fuscatus) towards more specialized taxa, as well as from surface-detritivores towards subsurface-detritivores was observed. This is typical for an ecological succession following the facilitation and inhibition succession model. Similarity between experimental and non-manipulated communities from 2003 was significantly highest after three years of succession. In the following years similarity decreased, probably due to elevated temperatures, which prevented the fjord-system from freezing. Some organisms numerically important in the non-manipulated community (e.g., the polychaete Dipolydora quadrilobata) did not colonies the substrate during the experiment. This suggests that the community had not fully matured within the first three years. Later, the settlement was probably impeded by consequences of warming temperatures. This demonstrates the long-lasting effects of severe disturbances on Arctic macrozoobenthic communities. Furthermore, environmental changes, such as rising temperatures coupled with enhanced food availability due to an increasing frequency of ice-free days per year, may have a stronger effect on succession than exposure time. |
format |
Dataset |
author |
Nowak, Christopher A Laudien, Jürgen Sahade, Ricardo José |
spellingShingle |
Nowak, Christopher A Laudien, Jürgen Sahade, Ricardo José Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen |
author_facet |
Nowak, Christopher A Laudien, Jürgen Sahade, Ricardo José |
author_sort |
Nowak, Christopher A |
title |
Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen |
title_short |
Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen |
title_full |
Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen |
title_fullStr |
Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen |
title_full_unstemmed |
Counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at Brandal, Kongsfjorden, Spitsbergen |
title_sort |
counts and abundance of macrozoobenthic organisms settled in artificial soft sediment at brandal, kongsfjorden, spitsbergen |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.859583 https://doi.org/10.1594/PANGAEA.859583 |
op_coverage |
LATITUDE: 78.947800 * LONGITUDE: 11.852650 * DATE/TIME START: 2003-06-17T00:00:00 * DATE/TIME END: 2007-09-04T00:00:00 |
long_lat |
ENVELOPE(11.852650,11.852650,78.947800,78.947800) |
geographic |
Arctic Norway Svalbard |
geographic_facet |
Arctic Norway Svalbard |
genre |
Arctic Arctic Iceberg* Kongsfjord* Kongsfjorden Polar Biology Svalbard Spitsbergen |
genre_facet |
Arctic Arctic Iceberg* Kongsfjord* Kongsfjorden Polar Biology Svalbard Spitsbergen |
op_source |
Supplement to: Nowak, Christopher A; Laudien, Jürgen; Sahade, Ricardo José (2016): Rising temperatures and sea ice-free winters affect the succession of Arctic macrozoobenthic soft-sediment communities (Kongsfjorden, Svalbard). Polar Biology, 39(11), 2097–2113, https://doi.org/10.1007/s00300-016-1995-x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.859583 https://doi.org/10.1594/PANGAEA.859583 |
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.859583 https://doi.org/10.1007/s00300-016-1995-x |
_version_ |
1766298379997937664 |