Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94
The by-catch of witch flounder (Glyptocephalus cynoglossus) was studied in the Spanish deep-sea fishery for Greenland halibut, which developed in the NAFO Regulatory Area in Div. 3LMNO over the period 1991–94. A total of 32 483 hauls were sampled. Some data from the Div. 3NO Spanish bottom trawl sur...
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ftcsic:oai:digital.csic.es:10261/327816 2024-02-11T10:04:18+01:00 Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 Durán-Muñoz, Pablo Paz, Xabier Atlantic Ocean North Atlantic Northwest Atlantic NAFO Flemish Cap 2000 http://hdl.handle.net/10508/847 http://hdl.handle.net/10261/327816 en eng Centro Oceanográfico de Vigo Durán, P., Paz, X. 2000. Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94. NAFO Sci. Coun. Studies, 33: 117-127 http://hdl.handle.net/10508/847 http://hdl.handle.net/10261/327816 3650 open Centro Oceanográfico de Vigo Pesquerías Flemish Cap Grand Bank length distribution length-weight relationship Witch flounder yield working paper 2000 ftcsic 2024-01-16T11:49:08Z The by-catch of witch flounder (Glyptocephalus cynoglossus) was studied in the Spanish deep-sea fishery for Greenland halibut, which developed in the NAFO Regulatory Area in Div. 3LMNO over the period 1991–94. A total of 32 483 hauls were sampled. Some data from the Div. 3NO Spanish bottom trawl survey in 1995 and 1996 were also included in this study. Witch flounder yield was estimated for this period. The yield showed an annual seasonality where yield was greater in spring. Through the period 1992–96, the overall annual yield showed a general increase. The length frequency and the length/weight relationship were obtained from samplings performed at depths ranging from 800 m to 1500 m. The length range of the individuals was 26–60 cm in males and 22–72 cm in females. The mean length decreased throughout the period analyzed, and was higher in the large vessel catches. The individuals were also larger in Div. 3M. The sex ratio showed seasonal variation in the large vessel catches, while no clear trend appeared in the small vessels. In addition to Greenland halibut, which was the target species, the main fish species accompanying the witch flounder catches were redfish, grenadiers, skate and American plaice as incidental catch. Report Greenland North Atlantic Northwest Atlantic Digital.CSIC (Spanish National Research Council) Greenland |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Centro Oceanográfico de Vigo Pesquerías Flemish Cap Grand Bank length distribution length-weight relationship Witch flounder yield |
spellingShingle |
Centro Oceanográfico de Vigo Pesquerías Flemish Cap Grand Bank length distribution length-weight relationship Witch flounder yield Durán-Muñoz, Pablo Paz, Xabier Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 |
topic_facet |
Centro Oceanográfico de Vigo Pesquerías Flemish Cap Grand Bank length distribution length-weight relationship Witch flounder yield |
description |
The by-catch of witch flounder (Glyptocephalus cynoglossus) was studied in the Spanish deep-sea fishery for Greenland halibut, which developed in the NAFO Regulatory Area in Div. 3LMNO over the period 1991–94. A total of 32 483 hauls were sampled. Some data from the Div. 3NO Spanish bottom trawl survey in 1995 and 1996 were also included in this study. Witch flounder yield was estimated for this period. The yield showed an annual seasonality where yield was greater in spring. Through the period 1992–96, the overall annual yield showed a general increase. The length frequency and the length/weight relationship were obtained from samplings performed at depths ranging from 800 m to 1500 m. The length range of the individuals was 26–60 cm in males and 22–72 cm in females. The mean length decreased throughout the period analyzed, and was higher in the large vessel catches. The individuals were also larger in Div. 3M. The sex ratio showed seasonal variation in the large vessel catches, while no clear trend appeared in the small vessels. In addition to Greenland halibut, which was the target species, the main fish species accompanying the witch flounder catches were redfish, grenadiers, skate and American plaice as incidental catch. |
format |
Report |
author |
Durán-Muñoz, Pablo Paz, Xabier |
author_facet |
Durán-Muñoz, Pablo Paz, Xabier |
author_sort |
Durán-Muñoz, Pablo |
title |
Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 |
title_short |
Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 |
title_full |
Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 |
title_fullStr |
Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 |
title_full_unstemmed |
Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94 |
title_sort |
witch flounder (gyptocephalus cynoglossus) in the spanish deep-sea fishery (nafo divisions 3lmno), 1991–94 |
publishDate |
2000 |
url |
http://hdl.handle.net/10508/847 http://hdl.handle.net/10261/327816 |
op_coverage |
Atlantic Ocean North Atlantic Northwest Atlantic NAFO Flemish Cap |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic Northwest Atlantic |
genre_facet |
Greenland North Atlantic Northwest Atlantic |
op_relation |
Centro Oceanográfico de Vigo Durán, P., Paz, X. 2000. Witch Flounder (Gyptocephalus cynoglossus) in the Spanish Deep-sea Fishery (NAFO Divisions 3LMNO), 1991–94. NAFO Sci. Coun. Studies, 33: 117-127 http://hdl.handle.net/10508/847 http://hdl.handle.net/10261/327816 3650 |
op_rights |
open |
_version_ |
1790600885636694016 |