Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging
The identification of macroalgal beds is a crucial component for the description of fjord ecosystems. Direct, biological sampling is still the most popular investigation technique but acoustic methods are becoming increasingly recognized as a very efficient tool for the assessment of benthic communi...
Published in: | Polish Polar Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Polish Academy of Sciences
2017
|
Subjects: | |
Online Access: | https://doi.org/10.1515/popore-2017-0009 https://doaj.org/article/13b7e70e9ff847dcbe47c3f88de5812e |
id |
ftdoajarticles:oai:doaj.org/article:13b7e70e9ff847dcbe47c3f88de5812e |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:13b7e70e9ff847dcbe47c3f88de5812e 2023-05-15T14:54:49+02:00 Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging Kruss Aleksandra Tęgowski Jarosław Tatarek Agnieszka Wiktor Józef Blondel Philippe 2017-06-01T00:00:00Z https://doi.org/10.1515/popore-2017-0009 https://doaj.org/article/13b7e70e9ff847dcbe47c3f88de5812e EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2017.38.issue-2/popore-2017-0009/popore-2017-0009.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2017-0009 https://doaj.org/article/13b7e70e9ff847dcbe47c3f88de5812e Polish Polar Research, Vol 38, Iss 2, Pp 205-229 (2017) Arctic Kongsfjorden macroalgae acoustic imaging habitat mapping Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.1515/popore-2017-0009 2022-12-31T03:48:17Z The identification of macroalgal beds is a crucial component for the description of fjord ecosystems. Direct, biological sampling is still the most popular investigation technique but acoustic methods are becoming increasingly recognized as a very efficient tool for the assessment of benthic communities. In 2007 we carried out the first acoustic survey of the littoral areas in Kongsfjorden. A 2.68 km2 area comprised within a 12.40 km2 euphotic zone was mapped along the fjord’s coast using single- and multi-beam echosounders. The singlebeam echosounder (SBES) proved to be a very efficient and reliable tool for macroalgae detection in Arctic conditions. The multibeam echosounder (MBES) was very useful in extending the SBES survey range, even though it’s ability in discriminating benthic communities was limited. The final result of our investigation is a map of the macroalgae distribution around the fjord, showing 39% macroalgae coverage (1.09 km2) of investigated area between isobaths -0.70 m and -30 m. Zonation analysis showed that most of the studied macroalgae areas occur up to 15 m depth (93%). These results were confirmed by biological sampling and observation in key areas. The potential of acoustic imaging of macrophytes, and a proposed methodology for the processing of acoustic data, are presented in this paper along with preliminary studies on the acoustic reflectivity of macroalgae, also highlighting differences among species. These results can be applied to future monitoring of the evolution of kelp beds in different areas of the Arctic, and in the rest of the world. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Polar Research Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Polish Polar Research 38 2 205 229 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Kongsfjorden macroalgae acoustic imaging habitat mapping Geology QE1-996.5 |
spellingShingle |
Arctic Kongsfjorden macroalgae acoustic imaging habitat mapping Geology QE1-996.5 Kruss Aleksandra Tęgowski Jarosław Tatarek Agnieszka Wiktor Józef Blondel Philippe Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging |
topic_facet |
Arctic Kongsfjorden macroalgae acoustic imaging habitat mapping Geology QE1-996.5 |
description |
The identification of macroalgal beds is a crucial component for the description of fjord ecosystems. Direct, biological sampling is still the most popular investigation technique but acoustic methods are becoming increasingly recognized as a very efficient tool for the assessment of benthic communities. In 2007 we carried out the first acoustic survey of the littoral areas in Kongsfjorden. A 2.68 km2 area comprised within a 12.40 km2 euphotic zone was mapped along the fjord’s coast using single- and multi-beam echosounders. The singlebeam echosounder (SBES) proved to be a very efficient and reliable tool for macroalgae detection in Arctic conditions. The multibeam echosounder (MBES) was very useful in extending the SBES survey range, even though it’s ability in discriminating benthic communities was limited. The final result of our investigation is a map of the macroalgae distribution around the fjord, showing 39% macroalgae coverage (1.09 km2) of investigated area between isobaths -0.70 m and -30 m. Zonation analysis showed that most of the studied macroalgae areas occur up to 15 m depth (93%). These results were confirmed by biological sampling and observation in key areas. The potential of acoustic imaging of macrophytes, and a proposed methodology for the processing of acoustic data, are presented in this paper along with preliminary studies on the acoustic reflectivity of macroalgae, also highlighting differences among species. These results can be applied to future monitoring of the evolution of kelp beds in different areas of the Arctic, and in the rest of the world. |
format |
Article in Journal/Newspaper |
author |
Kruss Aleksandra Tęgowski Jarosław Tatarek Agnieszka Wiktor Józef Blondel Philippe |
author_facet |
Kruss Aleksandra Tęgowski Jarosław Tatarek Agnieszka Wiktor Józef Blondel Philippe |
author_sort |
Kruss Aleksandra |
title |
Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging |
title_short |
Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging |
title_full |
Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging |
title_fullStr |
Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging |
title_full_unstemmed |
Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging |
title_sort |
spatial distribution of macroalgae along the shores of kongsfjorden (west spitsbergen) using acoustic imaging |
publisher |
Polish Academy of Sciences |
publishDate |
2017 |
url |
https://doi.org/10.1515/popore-2017-0009 https://doaj.org/article/13b7e70e9ff847dcbe47c3f88de5812e |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Kongsfjord* Kongsfjorden Polar Research Spitsbergen |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Polar Research Spitsbergen |
op_source |
Polish Polar Research, Vol 38, Iss 2, Pp 205-229 (2017) |
op_relation |
http://www.degruyter.com/view/j/popore.2017.38.issue-2/popore-2017-0009/popore-2017-0009.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2017-0009 https://doaj.org/article/13b7e70e9ff847dcbe47c3f88de5812e |
op_doi |
https://doi.org/10.1515/popore-2017-0009 |
container_title |
Polish Polar Research |
container_volume |
38 |
container_issue |
2 |
container_start_page |
205 |
op_container_end_page |
229 |
_version_ |
1766326577562386432 |