Seasonal variability in cod target strength ...
No abstracts are to be cited without prior reference to the author.The acoustic target strength of adult cod (Gadus morhua) was measured ex situ in a large, 4500 m3, experimental net pen at the IMR Austevoll aquaculture station in eight periods between November 1996 and May 1998. A calibrated Simrad...
Main Author: | |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
ASC 2006 - Theme session I
2024
|
Subjects: | |
Online Access: | https://dx.doi.org/10.17895/ices.pub.25258768.v1 https://ices-library.figshare.com/articles/conference_contribution/Seasonal_variability_in_cod_target_strength/25258768/1 |
id |
ftdatacite:10.17895/ices.pub.25258768.v1 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.17895/ices.pub.25258768.v1 2024-03-31T07:52:50+00:00 Seasonal variability in cod target strength ... Ona, Egil 2024 https://dx.doi.org/10.17895/ices.pub.25258768.v1 https://ices-library.figshare.com/articles/conference_contribution/Seasonal_variability_in_cod_target_strength/25258768/1 unknown ASC 2006 - Theme session I https://ices-library.figshare.com/ICES-ASC-2006/groups https://dx.doi.org/10.17895/ices.pub.25258768 https://ices-library.figshare.com/ICES-ASC-2006/groups ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx Fisheries and aquaculture Technologies and data Conference contribution article CreativeWork Other 2024 ftdatacite https://doi.org/10.17895/ices.pub.25258768.v110.17895/ices.pub.25258768 2024-03-04T14:11:39Z No abstracts are to be cited without prior reference to the author.The acoustic target strength of adult cod (Gadus morhua) was measured ex situ in a large, 4500 m3, experimental net pen at the IMR Austevoll aquaculture station in eight periods between November 1996 and May 1998. A calibrated Simrad EK500 split beam echo sounder was used to collect the acoustic data from a vertically observing transducer, positioned in the middle of the 21 m deep net pen. Groups of about 20 individual cod were transferred from the control storage population in each measurement series, but moved in every other aspect freely within the experimental net pen during the acoustic measurements. Natural variations in gonadosomatic index as well as changes in condition factor from an enforced starvation was monitored and correlated with changes in target strength. A General Linear Model (GLM) was used to estimate the functional relationship between the target strength at 38 kHz and important biological parameters. The significant ... Conference Object Gadus morhua 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 Technologies and data |
spellingShingle |
Fisheries and aquaculture Technologies and data Ona, Egil Seasonal variability in cod target strength ... |
topic_facet |
Fisheries and aquaculture Technologies and data |
description |
No abstracts are to be cited without prior reference to the author.The acoustic target strength of adult cod (Gadus morhua) was measured ex situ in a large, 4500 m3, experimental net pen at the IMR Austevoll aquaculture station in eight periods between November 1996 and May 1998. A calibrated Simrad EK500 split beam echo sounder was used to collect the acoustic data from a vertically observing transducer, positioned in the middle of the 21 m deep net pen. Groups of about 20 individual cod were transferred from the control storage population in each measurement series, but moved in every other aspect freely within the experimental net pen during the acoustic measurements. Natural variations in gonadosomatic index as well as changes in condition factor from an enforced starvation was monitored and correlated with changes in target strength. A General Linear Model (GLM) was used to estimate the functional relationship between the target strength at 38 kHz and important biological parameters. The significant ... |
format |
Conference Object |
author |
Ona, Egil |
author_facet |
Ona, Egil |
author_sort |
Ona, Egil |
title |
Seasonal variability in cod target strength ... |
title_short |
Seasonal variability in cod target strength ... |
title_full |
Seasonal variability in cod target strength ... |
title_fullStr |
Seasonal variability in cod target strength ... |
title_full_unstemmed |
Seasonal variability in cod target strength ... |
title_sort |
seasonal variability in cod target strength ... |
publisher |
ASC 2006 - Theme session I |
publishDate |
2024 |
url |
https://dx.doi.org/10.17895/ices.pub.25258768.v1 https://ices-library.figshare.com/articles/conference_contribution/Seasonal_variability_in_cod_target_strength/25258768/1 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
https://ices-library.figshare.com/ICES-ASC-2006/groups https://dx.doi.org/10.17895/ices.pub.25258768 https://ices-library.figshare.com/ICES-ASC-2006/groups |
op_rights |
ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx |
op_doi |
https://doi.org/10.17895/ices.pub.25258768.v110.17895/ices.pub.25258768 |
_version_ |
1795032200315404288 |