The impact of hydraulic dredging on ocean quahog populations ...
No abstracts are to be cited without prior reference to the author.In the present study three experiments were carried out out to measure the overall efficiency of a commercial hydraulic dredge used to surway ocean quahog in Icelandic waters. Direct effects of hydraulic dredging activity on ocean qu...
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2024
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ftdatacite:10.17895/ices.pub.25443475.v1 2024-04-28T08:35:05+00:00 The impact of hydraulic dredging on ocean quahog populations ... Thorarinsdóttir, Gudrun G. Ragnarsson, Stefan Áki Gunnarsson, Karl 2024 https://dx.doi.org/10.17895/ices.pub.25443475.v1 https://ices-library.figshare.com/articles/conference_contribution/The_impact_of_hydraulic_dredging_on_ocean_quahog_populations/25443475/1 unknown ASC 2002 - V - Theme session https://ices-library.figshare.com/ICES-ASC-2002/groups https://dx.doi.org/10.17895/ices.pub.25443475 https://ices-library.figshare.com/ICES-ASC-2002/groups ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx Fisheries and aquaculture article Other CreativeWork Conference contribution 2024 ftdatacite https://doi.org/10.17895/ices.pub.25443475.v110.17895/ices.pub.25443475 2024-04-02T12:00:32Z No abstracts are to be cited without prior reference to the author.In the present study three experiments were carried out out to measure the overall efficiency of a commercial hydraulic dredge used to surway ocean quahog in Icelandic waters. Direct effects of hydraulic dredging activity on ocean quahog populations by estimating size selectivity of the dredge and rate of shell breakage were evaluated. The mean dredge efficiency was variable, estimated between 20 and 86 %. The dredge was highly selective towards clams greater than 70 mm in shell length as 70-85% of the clams caught had the shell length between 70-90 mm. The rate of the shell breakage of ocean quahog in the catch was 25-37% and of those left behind in the dredge track 11-32%. Ocean quahog was the only species visible on underwater photographs and almost no bycatch was observed from the dredge. ... Article in Journal/Newspaper Ocean quahog DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Fisheries and aquaculture |
spellingShingle |
Fisheries and aquaculture Thorarinsdóttir, Gudrun G. Ragnarsson, Stefan Áki Gunnarsson, Karl The impact of hydraulic dredging on ocean quahog populations ... |
topic_facet |
Fisheries and aquaculture |
description |
No abstracts are to be cited without prior reference to the author.In the present study three experiments were carried out out to measure the overall efficiency of a commercial hydraulic dredge used to surway ocean quahog in Icelandic waters. Direct effects of hydraulic dredging activity on ocean quahog populations by estimating size selectivity of the dredge and rate of shell breakage were evaluated. The mean dredge efficiency was variable, estimated between 20 and 86 %. The dredge was highly selective towards clams greater than 70 mm in shell length as 70-85% of the clams caught had the shell length between 70-90 mm. The rate of the shell breakage of ocean quahog in the catch was 25-37% and of those left behind in the dredge track 11-32%. Ocean quahog was the only species visible on underwater photographs and almost no bycatch was observed from the dredge. ... |
format |
Article in Journal/Newspaper |
author |
Thorarinsdóttir, Gudrun G. Ragnarsson, Stefan Áki Gunnarsson, Karl |
author_facet |
Thorarinsdóttir, Gudrun G. Ragnarsson, Stefan Áki Gunnarsson, Karl |
author_sort |
Thorarinsdóttir, Gudrun G. |
title |
The impact of hydraulic dredging on ocean quahog populations ... |
title_short |
The impact of hydraulic dredging on ocean quahog populations ... |
title_full |
The impact of hydraulic dredging on ocean quahog populations ... |
title_fullStr |
The impact of hydraulic dredging on ocean quahog populations ... |
title_full_unstemmed |
The impact of hydraulic dredging on ocean quahog populations ... |
title_sort |
impact of hydraulic dredging on ocean quahog populations ... |
publisher |
ASC 2002 - V - Theme session |
publishDate |
2024 |
url |
https://dx.doi.org/10.17895/ices.pub.25443475.v1 https://ices-library.figshare.com/articles/conference_contribution/The_impact_of_hydraulic_dredging_on_ocean_quahog_populations/25443475/1 |
genre |
Ocean quahog |
genre_facet |
Ocean quahog |
op_relation |
https://ices-library.figshare.com/ICES-ASC-2002/groups https://dx.doi.org/10.17895/ices.pub.25443475 https://ices-library.figshare.com/ICES-ASC-2002/groups |
op_rights |
ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx |
op_doi |
https://doi.org/10.17895/ices.pub.25443475.v110.17895/ices.pub.25443475 |
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1797591532517195776 |