Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords
Over recent decades, the Arctic region has been subjected to rapid climate change stemming from global warming. The advance of Atlantic waters to high latitudes is notable. The increased abundance of fish, such as cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), has been reported near the...
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ftdoajarticles:oai:doaj.org/article:47aeb5494ecc48309d1c0dd1e5f0fee8 2023-05-15T14:44:36+02:00 Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords Joanna Szczucka Łukasz Hoppe Beata Schmidt Dariusz P. Fey 2017-10-01T00:00:00Z https://doi.org/10.1016/j.oceano.2017.04.007 https://doaj.org/article/47aeb5494ecc48309d1c0dd1e5f0fee8 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S0078323417300568 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2017.04.007 https://doaj.org/article/47aeb5494ecc48309d1c0dd1e5f0fee8 Oceanologia, Vol 59, Iss 4, Pp 585-591 (2017) Arctic fish Multifrequency acoustics West Spitsbergen Oceanography GC1-1581 article 2017 ftdoajarticles https://doi.org/10.1016/j.oceano.2017.04.007 2022-12-31T14:09:22Z Over recent decades, the Arctic region has been subjected to rapid climate change stemming from global warming. The advance of Atlantic waters to high latitudes is notable. The increased abundance of fish, such as cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), has been reported near the western coast of Spitsbergen and entering fjords together with Atlantic waters. This study used multifrequency acoustics to measure fish distribution and abundance in 2013–2014 in two Arctic fjords, the colder Hornsund, which is typically of Arctic character, and the warmer Kongsfjorden, which is more of Atlantic character. The study revealed a bimodal fish size distribution with larger fish in the deep parts of fjords, and smaller fish distributed in more shallow waters. An evident increase in the abundance of large fish, most probably Atlantic cod, was observed in Hornsund and especially in Kongsfjorden in 2014 in comparison to 2013. The intense inflow of Atlantic water on the shelf in 2014 is suggested as the explanation for this phenomenon. Article in Journal/Newspaper Arctic atlantic cod Climate change Gadus morhua Global warming Hornsund Kongsfjord* Kongsfjorden Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Oceanologia 59 4 585 591 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic fish Multifrequency acoustics West Spitsbergen Oceanography GC1-1581 |
spellingShingle |
Arctic fish Multifrequency acoustics West Spitsbergen Oceanography GC1-1581 Joanna Szczucka Łukasz Hoppe Beata Schmidt Dariusz P. Fey Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords |
topic_facet |
Arctic fish Multifrequency acoustics West Spitsbergen Oceanography GC1-1581 |
description |
Over recent decades, the Arctic region has been subjected to rapid climate change stemming from global warming. The advance of Atlantic waters to high latitudes is notable. The increased abundance of fish, such as cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), has been reported near the western coast of Spitsbergen and entering fjords together with Atlantic waters. This study used multifrequency acoustics to measure fish distribution and abundance in 2013–2014 in two Arctic fjords, the colder Hornsund, which is typically of Arctic character, and the warmer Kongsfjorden, which is more of Atlantic character. The study revealed a bimodal fish size distribution with larger fish in the deep parts of fjords, and smaller fish distributed in more shallow waters. An evident increase in the abundance of large fish, most probably Atlantic cod, was observed in Hornsund and especially in Kongsfjorden in 2014 in comparison to 2013. The intense inflow of Atlantic water on the shelf in 2014 is suggested as the explanation for this phenomenon. |
format |
Article in Journal/Newspaper |
author |
Joanna Szczucka Łukasz Hoppe Beata Schmidt Dariusz P. Fey |
author_facet |
Joanna Szczucka Łukasz Hoppe Beata Schmidt Dariusz P. Fey |
author_sort |
Joanna Szczucka |
title |
Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords |
title_short |
Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords |
title_full |
Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords |
title_fullStr |
Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords |
title_full_unstemmed |
Acoustical estimation of fish distribution and abundance in two Spitsbergen fjords |
title_sort |
acoustical estimation of fish distribution and abundance in two spitsbergen fjords |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.oceano.2017.04.007 https://doaj.org/article/47aeb5494ecc48309d1c0dd1e5f0fee8 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Arctic Hornsund |
geographic_facet |
Arctic Hornsund |
genre |
Arctic atlantic cod Climate change Gadus morhua Global warming Hornsund Kongsfjord* Kongsfjorden Spitsbergen |
genre_facet |
Arctic atlantic cod Climate change Gadus morhua Global warming Hornsund Kongsfjord* Kongsfjorden Spitsbergen |
op_source |
Oceanologia, Vol 59, Iss 4, Pp 585-591 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0078323417300568 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2017.04.007 https://doaj.org/article/47aeb5494ecc48309d1c0dd1e5f0fee8 |
op_doi |
https://doi.org/10.1016/j.oceano.2017.04.007 |
container_title |
Oceanologia |
container_volume |
59 |
container_issue |
4 |
container_start_page |
585 |
op_container_end_page |
591 |
_version_ |
1766316094106107904 |