Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ...
No abstracts are to be cited without prior reference to the author.In this paper we present results and interpretation of velocity and signal strength data collected with a ‘Continental’ Current Profiler on over-wintering herring in the Ofoten in the North of Norway. The instrument was lowered to a...
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2024
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ftdatacite:10.17895/ices.pub.25348786.v1 2024-04-28T08:35:05+00:00 Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... Patel, Ruben Godø, Or. Lohrmann., A. 2024 https://dx.doi.org/10.17895/ices.pub.25348786.v1 https://ices-library.figshare.com/articles/conference_contribution/Observing_Behaviour_Of_Over-Wintering_Herring_Clupea_Harrengus_L_In_Ofoten_With_Acoustic_Current_Profiler/25348786/1 unknown ASC 2003 - Q - Theme session https://ices-library.figshare.com/ICES-ASC-2003/groups https://dx.doi.org/10.17895/ices.pub.25348786 https://ices-library.figshare.com/ICES-ASC-2003/groups ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx Fisheries and aquaculture Pressures, impacts, conservation, and management article Other CreativeWork Conference contribution 2024 ftdatacite https://doi.org/10.17895/ices.pub.25348786.v110.17895/ices.pub.25348786 2024-04-02T12:00:32Z No abstracts are to be cited without prior reference to the author.In this paper we present results and interpretation of velocity and signal strength data collected with a ‘Continental’ Current Profiler on over-wintering herring in the Ofoten in the North of Norway. The instrument was lowered to a depth of 150 m and kept stationary with the transducer upward looking during a period of two months. In the same area and period we had two bottom-mounted echo sounder of the type EK60 at 500m and 400m depths. Data from the echo sounders were used to demonstrate that the Continental signal strength could clearly measure the backscattering of herring. First, we used threshold and contour extraction on the EK60 data. The extracted contours were then overlaid the backscattered data from the Continental. The distribution and density dynamics of the two data sets matched very well. By using the extracted contours for analyzing the speed and direction, we concluded that herring behaviour could efficiently be observed ... Article in Journal/Newspaper Ofoten DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Fisheries and aquaculture Pressures, impacts, conservation, and management |
spellingShingle |
Fisheries and aquaculture Pressures, impacts, conservation, and management Patel, Ruben Godø, Or. Lohrmann., A. Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... |
topic_facet |
Fisheries and aquaculture Pressures, impacts, conservation, and management |
description |
No abstracts are to be cited without prior reference to the author.In this paper we present results and interpretation of velocity and signal strength data collected with a ‘Continental’ Current Profiler on over-wintering herring in the Ofoten in the North of Norway. The instrument was lowered to a depth of 150 m and kept stationary with the transducer upward looking during a period of two months. In the same area and period we had two bottom-mounted echo sounder of the type EK60 at 500m and 400m depths. Data from the echo sounders were used to demonstrate that the Continental signal strength could clearly measure the backscattering of herring. First, we used threshold and contour extraction on the EK60 data. The extracted contours were then overlaid the backscattered data from the Continental. The distribution and density dynamics of the two data sets matched very well. By using the extracted contours for analyzing the speed and direction, we concluded that herring behaviour could efficiently be observed ... |
format |
Article in Journal/Newspaper |
author |
Patel, Ruben Godø, Or. Lohrmann., A. |
author_facet |
Patel, Ruben Godø, Or. Lohrmann., A. |
author_sort |
Patel, Ruben |
title |
Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... |
title_short |
Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... |
title_full |
Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... |
title_fullStr |
Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... |
title_full_unstemmed |
Observing Behaviour Of Over-Wintering Herring (Clupea Harrengus L.) In Ofoten With Acoustic Current Profiler ... |
title_sort |
observing behaviour of over-wintering herring (clupea harrengus l.) in ofoten with acoustic current profiler ... |
publisher |
ASC 2003 - Q - Theme session |
publishDate |
2024 |
url |
https://dx.doi.org/10.17895/ices.pub.25348786.v1 https://ices-library.figshare.com/articles/conference_contribution/Observing_Behaviour_Of_Over-Wintering_Herring_Clupea_Harrengus_L_In_Ofoten_With_Acoustic_Current_Profiler/25348786/1 |
genre |
Ofoten |
genre_facet |
Ofoten |
op_relation |
https://ices-library.figshare.com/ICES-ASC-2003/groups https://dx.doi.org/10.17895/ices.pub.25348786 https://ices-library.figshare.com/ICES-ASC-2003/groups |
op_rights |
ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx |
op_doi |
https://doi.org/10.17895/ices.pub.25348786.v110.17895/ices.pub.25348786 |
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1797591538563284992 |