Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region
Greenland turbot (Reinhardtius hippoglossoides) is a commercially important flounder in both the North Atlantic and North Pacific Oceans. In the latter, its center of abundance is in the eastern Bering Sea and along the Aleutian Islands chain where its population is managed as a single stock. Harves...
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ftoceandocs:oai:aquadocs.org:1834/20538 2023-05-15T15:43:11+02:00 Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region Alton, Miles S. Bakkala, Richard G. Walters, Gary E. Munro, Peter T. 1998 application/pdf http://hdl.handle.net/1834/20538 en eng NOAA/National Marine Fisheries Service NOAA Technical Report NMFS http://spo.nwr.noaa.gov/tr71.pdf http://hdl.handle.net/1834/20538 http://aquaticcommons.org/id/eprint/2750 403 2011-09-29 18:24:34 2750 United States National Marine Fisheries Service Ecology Management Fisheries monograph 1998 ftoceandocs 2023-04-06T17:01:40Z Greenland turbot (Reinhardtius hippoglossoides) is a commercially important flounder in both the North Atlantic and North Pacific Oceans. In the latter, its center of abundance is in the eastern Bering Sea and along the Aleutian Islands chain where its population is managed as a single stock. Harvest levels in this region of the North Pacific during the period 1970-81 were comparable with thosein the northwest and northeast Atlantic, with annual average catches of 53,000 metric tons (t). However, the catch in 1984 dropped sharply to 23,100 t, in partbecause of reduced quotas arising from concern over continued poor recruitment and declining catch-per-unit-effort.Recruitment failure was manifested in 1) the sharp decline in the catch rate of young flsh in annual research trawl surveys on the continental shelf of the eastern Bering Sea and 2) an increasing proportion of older and larger fish inthe commercial catch from the continental slope of both the eastern Bering Sea and Aleutian Islands. The cause ofthe decline in recruitment could not be clearly identifled.Greenland turbot of the Bering Sea-Aleutian Islands share certain distributional features with the North Atlantic form. There is an apparent bathymetric change in the size and age of fish, with younger animals occupying continentalshelf depths and the older individuals residing at depths of the continental slope. At shallow depths the young are exposed to temperature fluctuations, whereas older animals along the slope are exposed to relatively stable temperatures.A hypothesis is proposed for describing the temporal and spatial paths by which young animals reach the mature or spawning portion of the population. (PDF file contains 38 pages.) Book Bering Sea Greenland North Atlantic Northeast Atlantic Turbot Aleutian Islands IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Bering Sea Greenland Pacific |
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Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Ecology Management Fisheries |
spellingShingle |
Ecology Management Fisheries Alton, Miles S. Bakkala, Richard G. Walters, Gary E. Munro, Peter T. Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region |
topic_facet |
Ecology Management Fisheries |
description |
Greenland turbot (Reinhardtius hippoglossoides) is a commercially important flounder in both the North Atlantic and North Pacific Oceans. In the latter, its center of abundance is in the eastern Bering Sea and along the Aleutian Islands chain where its population is managed as a single stock. Harvest levels in this region of the North Pacific during the period 1970-81 were comparable with thosein the northwest and northeast Atlantic, with annual average catches of 53,000 metric tons (t). However, the catch in 1984 dropped sharply to 23,100 t, in partbecause of reduced quotas arising from concern over continued poor recruitment and declining catch-per-unit-effort.Recruitment failure was manifested in 1) the sharp decline in the catch rate of young flsh in annual research trawl surveys on the continental shelf of the eastern Bering Sea and 2) an increasing proportion of older and larger fish inthe commercial catch from the continental slope of both the eastern Bering Sea and Aleutian Islands. The cause ofthe decline in recruitment could not be clearly identifled.Greenland turbot of the Bering Sea-Aleutian Islands share certain distributional features with the North Atlantic form. There is an apparent bathymetric change in the size and age of fish, with younger animals occupying continentalshelf depths and the older individuals residing at depths of the continental slope. At shallow depths the young are exposed to temperature fluctuations, whereas older animals along the slope are exposed to relatively stable temperatures.A hypothesis is proposed for describing the temporal and spatial paths by which young animals reach the mature or spawning portion of the population. (PDF file contains 38 pages.) |
format |
Book |
author |
Alton, Miles S. Bakkala, Richard G. Walters, Gary E. Munro, Peter T. |
author_facet |
Alton, Miles S. Bakkala, Richard G. Walters, Gary E. Munro, Peter T. |
author_sort |
Alton, Miles S. |
title |
Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region |
title_short |
Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region |
title_full |
Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region |
title_fullStr |
Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region |
title_full_unstemmed |
Greenland turbot Reinhardtius hippoglossoides of the eastern Bering Sea and Aleutian Islands region |
title_sort |
greenland turbot reinhardtius hippoglossoides of the eastern bering sea and aleutian islands region |
publisher |
NOAA/National Marine Fisheries Service |
publishDate |
1998 |
url |
http://hdl.handle.net/1834/20538 |
geographic |
Bering Sea Greenland Pacific |
geographic_facet |
Bering Sea Greenland Pacific |
genre |
Bering Sea Greenland North Atlantic Northeast Atlantic Turbot Aleutian Islands |
genre_facet |
Bering Sea Greenland North Atlantic Northeast Atlantic Turbot Aleutian Islands |
op_source |
http://aquaticcommons.org/id/eprint/2750 403 2011-09-29 18:24:34 2750 United States National Marine Fisheries Service |
op_relation |
NOAA Technical Report NMFS http://spo.nwr.noaa.gov/tr71.pdf http://hdl.handle.net/1834/20538 |
_version_ |
1766377220440326144 |