Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord
Abstract Stocking of young eel is widely practised, as a measure, to meet the management target of the EU eel recovery plan. The target of the recovery plan is to increase the escapement to 40% silver eel biomass, relative to pristine conditions. The scientific information to predict the outcome in...
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2015
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsv167 http://academic.oup.com/icesjms/article-pdf/73/1/158/31230632/fsv167.pdf |
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croxfordunivpr:10.1093/icesjms/fsv167 2024-02-11T09:55:32+01:00 Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord Pedersen, Michael I. Rasmussen, Gorm H. 2015 http://dx.doi.org/10.1093/icesjms/fsv167 http://academic.oup.com/icesjms/article-pdf/73/1/158/31230632/fsv167.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 73, issue 1, page 158-164 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2015 croxfordunivpr https://doi.org/10.1093/icesjms/fsv167 2024-01-12T09:35:08Z Abstract Stocking of young eel is widely practised, as a measure, to meet the management target of the EU eel recovery plan. The target of the recovery plan is to increase the escapement to 40% silver eel biomass, relative to pristine conditions. The scientific information to predict the outcome in silver eel biomass from stocking is limited and may depend on whether translocation of wild glass eel or yellow eel is used, or if the stocked eels used are yellow eel from aquaculture. We evaluated the yield from stocking two different sizes, 3 and 9 g eels from aquaculture. A professional fishery recaptured 12.7% of the 3 g and 9.4% of the 9 g eels, originally stocked. Growth rate and mortality rate were different for the two stocked sizes, favouring the small eels. Brutto yield per recruit (YPR) was 13 and 9.2 g and netto YPR was 9.8 and 0.31 g for 3 and 9 g eel, respectively. We conclude that there seems to be no advantage in using larger 9 g eels compared with small 3 g eels for stocking. Article in Journal/Newspaper Anguilla anguilla Oxford University Press Brutto ENVELOPE(20.743,20.743,69.985,69.985) ICES Journal of Marine Science 73 1 158 164 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Pedersen, Michael I. Rasmussen, Gorm H. Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Stocking of young eel is widely practised, as a measure, to meet the management target of the EU eel recovery plan. The target of the recovery plan is to increase the escapement to 40% silver eel biomass, relative to pristine conditions. The scientific information to predict the outcome in silver eel biomass from stocking is limited and may depend on whether translocation of wild glass eel or yellow eel is used, or if the stocked eels used are yellow eel from aquaculture. We evaluated the yield from stocking two different sizes, 3 and 9 g eels from aquaculture. A professional fishery recaptured 12.7% of the 3 g and 9.4% of the 9 g eels, originally stocked. Growth rate and mortality rate were different for the two stocked sizes, favouring the small eels. Brutto yield per recruit (YPR) was 13 and 9.2 g and netto YPR was 9.8 and 0.31 g for 3 and 9 g eel, respectively. We conclude that there seems to be no advantage in using larger 9 g eels compared with small 3 g eels for stocking. |
format |
Article in Journal/Newspaper |
author |
Pedersen, Michael I. Rasmussen, Gorm H. |
author_facet |
Pedersen, Michael I. Rasmussen, Gorm H. |
author_sort |
Pedersen, Michael I. |
title |
Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord |
title_short |
Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord |
title_full |
Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord |
title_fullStr |
Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord |
title_full_unstemmed |
Yield per recruit from stocking two different sizes of eel (Anguilla anguilla) in the brackish Roskilde Fjord |
title_sort |
yield per recruit from stocking two different sizes of eel (anguilla anguilla) in the brackish roskilde fjord |
publisher |
Oxford University Press (OUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1093/icesjms/fsv167 http://academic.oup.com/icesjms/article-pdf/73/1/158/31230632/fsv167.pdf |
long_lat |
ENVELOPE(20.743,20.743,69.985,69.985) |
geographic |
Brutto |
geographic_facet |
Brutto |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ICES Journal of Marine Science volume 73, issue 1, page 158-164 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsv167 |
container_title |
ICES Journal of Marine Science |
container_volume |
73 |
container_issue |
1 |
container_start_page |
158 |
op_container_end_page |
164 |
_version_ |
1790597185454211072 |