Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides)
After the absence of 1989–1994 year classes of Northeast Arctic Greenland halibut (Reinhard-tius hippoglossoides) in regular surveys, an annual survey programme was initiated in 1996 to map juveniles in previously unsurveyed waters north and east of Svalbard. After rather stable juvenile indices in...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.512.4720 2023-05-15T14:50:25+02:00 Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) Åge S. Høines Agnes C. Gundersen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.4720 http://journal.nafo.int/41/hoines/9-hoines.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.4720 http://journal.nafo.int/41/hoines/9-hoines.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://journal.nafo.int/41/hoines/9-hoines.pdf Key words Arctic Barents Sea Greenland halibut recruitment spawning stock stock recovery. Publication (Upload) date 10 Sep 2008 text ftciteseerx 2016-01-08T09:42:51Z After the absence of 1989–1994 year classes of Northeast Arctic Greenland halibut (Reinhard-tius hippoglossoides) in regular surveys, an annual survey programme was initiated in 1996 to map juveniles in previously unsurveyed waters north and east of Svalbard. After rather stable juvenile indices in the first years, the recruitment indices have increased tenfold from 2001 to 2006. The increase in juvenile Northeast Arctic (NEA) Greenland halibut corresponded with an increase in spawning stock biomass. The swept area abundance estimates of spawning females (i.e., females>60 cm), has nearly tripled since 1996 having achieved 29 000 t in recent years. This improvement occurred after years of strong regulations, introduced in 1992, by enforcing a moratorium on the targeted offshore fishery and strict bycatch regulations for the species. Regulations were introduced after a dramatic change in stock status for the NEA Greenland halibut during the 1980s. Females>75 cm contributed more to the stock’s total egg production (TEP) in more recent years. The contribu-tion from these larger females increased from 10 % of the TEP estimate in 1996 to 21 % in 2006. The results from the present study indicate that rebuilding Greenland halibut stocks takes time, and that at least 12–15 years with restrictions are needed to recover from the low levels observed in the Barents Sea in the beginning of the 1990s. Text Arctic Barents Sea Greenland Svalbard Unknown Arctic Barents Sea Greenland Svalbard |
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language |
English |
topic |
Key words Arctic Barents Sea Greenland halibut recruitment spawning stock stock recovery. Publication (Upload) date 10 Sep 2008 |
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Key words Arctic Barents Sea Greenland halibut recruitment spawning stock stock recovery. Publication (Upload) date 10 Sep 2008 Åge S. Høines Agnes C. Gundersen Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) |
topic_facet |
Key words Arctic Barents Sea Greenland halibut recruitment spawning stock stock recovery. Publication (Upload) date 10 Sep 2008 |
description |
After the absence of 1989–1994 year classes of Northeast Arctic Greenland halibut (Reinhard-tius hippoglossoides) in regular surveys, an annual survey programme was initiated in 1996 to map juveniles in previously unsurveyed waters north and east of Svalbard. After rather stable juvenile indices in the first years, the recruitment indices have increased tenfold from 2001 to 2006. The increase in juvenile Northeast Arctic (NEA) Greenland halibut corresponded with an increase in spawning stock biomass. The swept area abundance estimates of spawning females (i.e., females>60 cm), has nearly tripled since 1996 having achieved 29 000 t in recent years. This improvement occurred after years of strong regulations, introduced in 1992, by enforcing a moratorium on the targeted offshore fishery and strict bycatch regulations for the species. Regulations were introduced after a dramatic change in stock status for the NEA Greenland halibut during the 1980s. Females>75 cm contributed more to the stock’s total egg production (TEP) in more recent years. The contribu-tion from these larger females increased from 10 % of the TEP estimate in 1996 to 21 % in 2006. The results from the present study indicate that rebuilding Greenland halibut stocks takes time, and that at least 12–15 years with restrictions are needed to recover from the low levels observed in the Barents Sea in the beginning of the 1990s. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Åge S. Høines Agnes C. Gundersen |
author_facet |
Åge S. Høines Agnes C. Gundersen |
author_sort |
Åge S. Høines |
title |
Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) |
title_short |
Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) |
title_full |
Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) |
title_fullStr |
Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) |
title_full_unstemmed |
Rebuilding the Stock of Northeast Arctic Greenland Halibut (Reinhardtius hippoglossoides) |
title_sort |
rebuilding the stock of northeast arctic greenland halibut (reinhardtius hippoglossoides) |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.4720 http://journal.nafo.int/41/hoines/9-hoines.pdf |
geographic |
Arctic Barents Sea Greenland Svalbard |
geographic_facet |
Arctic Barents Sea Greenland Svalbard |
genre |
Arctic Barents Sea Greenland Svalbard |
genre_facet |
Arctic Barents Sea Greenland Svalbard |
op_source |
http://journal.nafo.int/41/hoines/9-hoines.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.512.4720 http://journal.nafo.int/41/hoines/9-hoines.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766321453771259904 |