Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics
This interdisciplinary thesis uses active and passive acoustics to study the polar marine ecosystems. The polar oceans are some of the most remote, harshest and least well studied environments of the planet, and also the regions where climate change and the associated changes in marine ecosystems ha...
Published in: | Royal Society Open Science |
---|---|
Main Author: | |
Other Authors: | |
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
Published: |
The University of Bergen
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/1956/22445 |
id |
ftunivbergen:oai:bora.uib.no:1956/22445 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
This interdisciplinary thesis uses active and passive acoustics to study the polar marine ecosystems. The polar oceans are some of the most remote, harshest and least well studied environments of the planet, and also the regions where climate change and the associated changes in marine ecosystems happen fastest. The four papers that comprise this thesis are based on acoustic data from moored and vessel-mounted instruments and cover different aspects of the Arctic and Antarctic marine ecosystems. Vessel-mounted Acoustic Doppler Current Profiler (ADCP) data was used to map circulation patterns in the highly dynamical Fram Strait region. Such unstructured ADCP data is relatively seldom used in regional studies due to challenges associated with the interpretation of temporal and spatial variability. This was addressed by compiling a large data set, binning, different spatial interpolation methods and discussion of individual sections. The analysis showed that the Yermak Pass Branch can be as important as the Svalbard Branch in transporting Atlantic Water into the Arctic Ocean. The ADCP data was thereafter combined with vessel-mounted echosounder data and numerical modelling to investigate the impact of Atlantic Water circulation on plankton and fish distribution within four major troughs that cut into the Svalbard shelf. The Hinlopen Trough received the strongest and most direct Atlantic Water inflow and showed stronger acoustic backscatter from fish and zooplankton than the shelf, shelf break, and deep ocean. These results suggest that the balance between throughflow and retention creates favourable habitats in the trough for fish, benthic organisms and marine mammals. Passive acoustic data was used to study the sources and seasonal variation of ambient sound in the deep Southern Ocean. Passive acoustic monitoring has the advantage of autonomously and non-invasively gathering data over large spatial and temporal scales. The Southern Ocean, one of the last acoustically pristine oceans due to its remoteness and lack ... |
author2 |
orcid:0000-0002-2680-9794 |
format |
Doctoral or Postdoctoral Thesis |
author |
Menze, Sebastian |
spellingShingle |
Menze, Sebastian Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics |
author_facet |
Menze, Sebastian |
author_sort |
Menze, Sebastian |
title |
Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics |
title_short |
Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics |
title_full |
Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics |
title_fullStr |
Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics |
title_full_unstemmed |
Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics |
title_sort |
listening to the polar oceans : monitoring and mapping marine ecosystems using passive and active acoustics |
publisher |
The University of Bergen |
publishDate |
2020 |
url |
https://hdl.handle.net/1956/22445 |
long_lat |
ENVELOPE(17.000,17.000,81.833,81.833) |
geographic |
Antarctic Arctic Arctic Ocean Hinlopen Trough Southern Ocean Svalbard |
geographic_facet |
Antarctic Arctic Arctic Ocean Hinlopen Trough Southern Ocean Svalbard |
genre |
Antarc* Antarctic Arctic Arctic Ocean Climate change Fram Strait Southern Ocean Svalbard Zooplankton |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Climate change Fram Strait Southern Ocean Svalbard Zooplankton |
op_relation |
Paper 1: Menze, S., Ingvaldsen, R. B., Haugan, P., Beszczynska-Moeller, A., Fer, I., Sundfjord, A., & Falk-Petersen, S. (2019). Atlantic Water pathways along the north-western Svalbard shelf mapped using vessel-mounted current profilers. Journal of Geophysical Research: Oceans, 124(3), pp.1699–1716. The article is available at: http://hdl.handle.net/1956/20670 Paper 2: Menze S., Nikolopoulos A., Hattermann T., Gjøsæter H., Albretsen J. and Ingvaldsen R. B. (2020) Productive detours – comparing Atlantic Water inflow and acoustic backscatter in the major troughs along the Svalbard shelf. The article is not available in BORA. Paper 3: Menze, S., Zitterbart, D. P., van Opzeeland, I., & Boebel, O. (2017). The influence of sea ice, wind speed and marine mammals on Southern Ocean ambient sound. Royal Society Open Science, 4(1), 160370. The article is available in the main thesis. The article is also available at: https://doi.org/10.1098/rsos.160370 Paper 4: Menze, S., Zitterbart, D. P., Biuw, M., & Boebel, O. (2019). Estimating the spatial distribution of vocalizing animals from ambient sound spectra using widely spaced recorder arrays and inverse modelling. The Journal of the Acoustical Society of America, 146(6), 4699–4717. The article is available in the main thesis. The article is also available at: https://doi.org/10.1121/1.5139406 container/2b/6e/c3/a1/2b6ec3a1-b3c0-40d1-9481-c12bf1f77361 urn:isbn:9788230840498 urn:isbn:9788230856284 https://hdl.handle.net/1956/22445 |
op_rights |
Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) https://creativecommons.org/licenses/by-nc-nd/4.0/ Copyright the Author. |
container_title |
Royal Society Open Science |
container_volume |
4 |
container_issue |
1 |
container_start_page |
160370 |
_version_ |
1766282522799374336 |
spelling |
ftunivbergen:oai:bora.uib.no:1956/22445 2023-05-15T14:10:28+02:00 Listening to the polar oceans : Monitoring and mapping marine ecosystems using passive and active acoustics Menze, Sebastian orcid:0000-0002-2680-9794 2020-06-03T07:45:38Z application/pdf https://hdl.handle.net/1956/22445 eng eng The University of Bergen Paper 1: Menze, S., Ingvaldsen, R. B., Haugan, P., Beszczynska-Moeller, A., Fer, I., Sundfjord, A., & Falk-Petersen, S. (2019). Atlantic Water pathways along the north-western Svalbard shelf mapped using vessel-mounted current profilers. Journal of Geophysical Research: Oceans, 124(3), pp.1699–1716. The article is available at: http://hdl.handle.net/1956/20670 Paper 2: Menze S., Nikolopoulos A., Hattermann T., Gjøsæter H., Albretsen J. and Ingvaldsen R. B. (2020) Productive detours – comparing Atlantic Water inflow and acoustic backscatter in the major troughs along the Svalbard shelf. The article is not available in BORA. Paper 3: Menze, S., Zitterbart, D. P., van Opzeeland, I., & Boebel, O. (2017). The influence of sea ice, wind speed and marine mammals on Southern Ocean ambient sound. Royal Society Open Science, 4(1), 160370. The article is available in the main thesis. The article is also available at: https://doi.org/10.1098/rsos.160370 Paper 4: Menze, S., Zitterbart, D. P., Biuw, M., & Boebel, O. (2019). Estimating the spatial distribution of vocalizing animals from ambient sound spectra using widely spaced recorder arrays and inverse modelling. The Journal of the Acoustical Society of America, 146(6), 4699–4717. The article is available in the main thesis. The article is also available at: https://doi.org/10.1121/1.5139406 container/2b/6e/c3/a1/2b6ec3a1-b3c0-40d1-9481-c12bf1f77361 urn:isbn:9788230840498 urn:isbn:9788230856284 https://hdl.handle.net/1956/22445 Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) https://creativecommons.org/licenses/by-nc-nd/4.0/ Copyright the Author. Doctoral thesis 2020 ftunivbergen 2023-03-14T17:41:02Z This interdisciplinary thesis uses active and passive acoustics to study the polar marine ecosystems. The polar oceans are some of the most remote, harshest and least well studied environments of the planet, and also the regions where climate change and the associated changes in marine ecosystems happen fastest. The four papers that comprise this thesis are based on acoustic data from moored and vessel-mounted instruments and cover different aspects of the Arctic and Antarctic marine ecosystems. Vessel-mounted Acoustic Doppler Current Profiler (ADCP) data was used to map circulation patterns in the highly dynamical Fram Strait region. Such unstructured ADCP data is relatively seldom used in regional studies due to challenges associated with the interpretation of temporal and spatial variability. This was addressed by compiling a large data set, binning, different spatial interpolation methods and discussion of individual sections. The analysis showed that the Yermak Pass Branch can be as important as the Svalbard Branch in transporting Atlantic Water into the Arctic Ocean. The ADCP data was thereafter combined with vessel-mounted echosounder data and numerical modelling to investigate the impact of Atlantic Water circulation on plankton and fish distribution within four major troughs that cut into the Svalbard shelf. The Hinlopen Trough received the strongest and most direct Atlantic Water inflow and showed stronger acoustic backscatter from fish and zooplankton than the shelf, shelf break, and deep ocean. These results suggest that the balance between throughflow and retention creates favourable habitats in the trough for fish, benthic organisms and marine mammals. Passive acoustic data was used to study the sources and seasonal variation of ambient sound in the deep Southern Ocean. Passive acoustic monitoring has the advantage of autonomously and non-invasively gathering data over large spatial and temporal scales. The Southern Ocean, one of the last acoustically pristine oceans due to its remoteness and lack ... Doctoral or Postdoctoral Thesis Antarc* Antarctic Arctic Arctic Ocean Climate change Fram Strait Southern Ocean Svalbard Zooplankton University of Bergen: Bergen Open Research Archive (BORA-UiB) Antarctic Arctic Arctic Ocean Hinlopen Trough ENVELOPE(17.000,17.000,81.833,81.833) Southern Ocean Svalbard Royal Society Open Science 4 1 160370 |