Unexpected fish and squid in the central Arctic deep scattering layer
The retreating ice cover of the Central Arctic Ocean (CAO) fuels speculations on future fisheries. However, very little is known about the existence of harvestable fish stocks in this 3.3 million–square kilometer ecosystem around the North Pole. Crossing the Eurasian Basin, we documented an uninterr...
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Online Access: | http://dx.doi.org/10.1126/sciadv.abj7536 https://www.science.org/doi/pdf/10.1126/sciadv.abj7536 |
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craaas:10.1126/sciadv.abj7536 2024-06-23T07:49:07+00:00 Unexpected fish and squid in the central Arctic deep scattering layer Snoeijs-Leijonmalm, Pauline Flores, Hauke Sakinan, Serdar Hildebrandt, Nicole Svenson, Anders Castellani, Giulia Vane, Kim Mark, Felix C. Heuzé, Céline Tippenhauer, Sandra Niehoff, Barbara Hjelm, Joakim Hentati Sundberg, Jonas Schaafsma, Fokje L. Engelmann, Ronny 2022 http://dx.doi.org/10.1126/sciadv.abj7536 https://www.science.org/doi/pdf/10.1126/sciadv.abj7536 en eng American Association for the Advancement of Science (AAAS) Science Advances volume 8, issue 7 ISSN 2375-2548 journal-article 2022 craaas https://doi.org/10.1126/sciadv.abj7536 2024-06-13T04:01:21Z The retreating ice cover of the Central Arctic Ocean (CAO) fuels speculations on future fisheries. However, very little is known about the existence of harvestable fish stocks in this 3.3 million–square kilometer ecosystem around the North Pole. Crossing the Eurasian Basin, we documented an uninterrupted 3170-kilometer-long deep scattering layer (DSL) with zooplankton and small fish in the Atlantic water layer at 100- to 500-meter depth. Diel vertical migration of this central Arctic DSL was lacking most of the year when daily light variation was absent. Unexpectedly, the DSL also contained low abundances of Atlantic cod, along with lanternfish, armhook squid, and Arctic endemic ice cod. The Atlantic cod originated from Norwegian spawning grounds and had lived in Arctic water temperature for up to 6 years. The potential fish abundance was far below commercially sustainable levels and is expected to remain so because of the low productivity of the CAO. Article in Journal/Newspaper Arctic Arctic Ocean atlantic cod North Pole Zooplankton AAAS Resource Center (American Association for the Advancement of Science) Arctic Arctic Ocean North Pole Science Advances 8 7 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
The retreating ice cover of the Central Arctic Ocean (CAO) fuels speculations on future fisheries. However, very little is known about the existence of harvestable fish stocks in this 3.3 million–square kilometer ecosystem around the North Pole. Crossing the Eurasian Basin, we documented an uninterrupted 3170-kilometer-long deep scattering layer (DSL) with zooplankton and small fish in the Atlantic water layer at 100- to 500-meter depth. Diel vertical migration of this central Arctic DSL was lacking most of the year when daily light variation was absent. Unexpectedly, the DSL also contained low abundances of Atlantic cod, along with lanternfish, armhook squid, and Arctic endemic ice cod. The Atlantic cod originated from Norwegian spawning grounds and had lived in Arctic water temperature for up to 6 years. The potential fish abundance was far below commercially sustainable levels and is expected to remain so because of the low productivity of the CAO. |
format |
Article in Journal/Newspaper |
author |
Snoeijs-Leijonmalm, Pauline Flores, Hauke Sakinan, Serdar Hildebrandt, Nicole Svenson, Anders Castellani, Giulia Vane, Kim Mark, Felix C. Heuzé, Céline Tippenhauer, Sandra Niehoff, Barbara Hjelm, Joakim Hentati Sundberg, Jonas Schaafsma, Fokje L. Engelmann, Ronny |
spellingShingle |
Snoeijs-Leijonmalm, Pauline Flores, Hauke Sakinan, Serdar Hildebrandt, Nicole Svenson, Anders Castellani, Giulia Vane, Kim Mark, Felix C. Heuzé, Céline Tippenhauer, Sandra Niehoff, Barbara Hjelm, Joakim Hentati Sundberg, Jonas Schaafsma, Fokje L. Engelmann, Ronny Unexpected fish and squid in the central Arctic deep scattering layer |
author_facet |
Snoeijs-Leijonmalm, Pauline Flores, Hauke Sakinan, Serdar Hildebrandt, Nicole Svenson, Anders Castellani, Giulia Vane, Kim Mark, Felix C. Heuzé, Céline Tippenhauer, Sandra Niehoff, Barbara Hjelm, Joakim Hentati Sundberg, Jonas Schaafsma, Fokje L. Engelmann, Ronny |
author_sort |
Snoeijs-Leijonmalm, Pauline |
title |
Unexpected fish and squid in the central Arctic deep scattering layer |
title_short |
Unexpected fish and squid in the central Arctic deep scattering layer |
title_full |
Unexpected fish and squid in the central Arctic deep scattering layer |
title_fullStr |
Unexpected fish and squid in the central Arctic deep scattering layer |
title_full_unstemmed |
Unexpected fish and squid in the central Arctic deep scattering layer |
title_sort |
unexpected fish and squid in the central arctic deep scattering layer |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1126/sciadv.abj7536 https://www.science.org/doi/pdf/10.1126/sciadv.abj7536 |
geographic |
Arctic Arctic Ocean North Pole |
geographic_facet |
Arctic Arctic Ocean North Pole |
genre |
Arctic Arctic Ocean atlantic cod North Pole Zooplankton |
genre_facet |
Arctic Arctic Ocean atlantic cod North Pole Zooplankton |
op_source |
Science Advances volume 8, issue 7 ISSN 2375-2548 |
op_doi |
https://doi.org/10.1126/sciadv.abj7536 |
container_title |
Science Advances |
container_volume |
8 |
container_issue |
7 |
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1802639384904728576 |