Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area
In February 1995 the European Union carried out a selectivity survey on board a Spanish commercial trawler, using the codend-cover method. The objective was to study the selectivity of 130 mm mesh size for the deep sea trawl fisheries in the NAFO Regulatory Area. One hour and four hour hauls were ca...
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Northwest Atlantic Fisheries Organization (NAFO)
1997
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ftcsic:oai:digital.csic.es:10261/329054 2024-02-11T10:04:17+01:00 Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area Cárdenas-González, Enrique de Ávila-de-Melo, Antonio Saborido-Rey, Francisco Iglesias-Martínez, Sergio Atlantic Ocean North Atlantic Northwest Atlantic 1997 http://hdl.handle.net/10508/1601 http://hdl.handle.net/10261/329054 en eng Northwest Atlantic Fisheries Organization (NAFO) Centro Oceanográfico de Vigo Cárdenas, E. de et al. 1997. Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area. NAFO Sci. Coun. Studies, 30: 21-25 http://hdl.handle.net/10508/1601 http://hdl.handle.net/10261/329054 open American plaice Centro Oceanográfico de Vigo Pesquerías Greenland halibut roughhead grenadier selectivity threebeard rockling trawl documento de trabajo http://purl.org/coar/resource_type/c_8042 1997 ftcsic 2024-01-16T11:49:38Z In February 1995 the European Union carried out a selectivity survey on board a Spanish commercial trawler, using the codend-cover method. The objective was to study the selectivity of 130 mm mesh size for the deep sea trawl fisheries in the NAFO Regulatory Area. One hour and four hour hauls were carried out and results obtained for Greenland halibut (Reinhardtius hippoglossoides), American plaice (Hippoglossoides platessoides), roughhead grenadier (Macrourus berglax) and threebeard rockling (Gaidropsarus ensis). For the two flatfish species, the proportion of retention increased with the duration of the haul. This increase reflected in a decrease of the corresponding selection factor. It also varied with the size of fish. The selection factor was greater in smaller individuals, and this induced an asymmetry in the selectivity curve. For the groundfish species, data were enough only to fit the four hour selectivity curves, which appeared more symmetrical than the flatfish ones. 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 |
American plaice Centro Oceanográfico de Vigo Pesquerías Greenland halibut roughhead grenadier selectivity threebeard rockling trawl |
spellingShingle |
American plaice Centro Oceanográfico de Vigo Pesquerías Greenland halibut roughhead grenadier selectivity threebeard rockling trawl Cárdenas-González, Enrique de Ávila-de-Melo, Antonio Saborido-Rey, Francisco Iglesias-Martínez, Sergio Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area |
topic_facet |
American plaice Centro Oceanográfico de Vigo Pesquerías Greenland halibut roughhead grenadier selectivity threebeard rockling trawl |
description |
In February 1995 the European Union carried out a selectivity survey on board a Spanish commercial trawler, using the codend-cover method. The objective was to study the selectivity of 130 mm mesh size for the deep sea trawl fisheries in the NAFO Regulatory Area. One hour and four hour hauls were carried out and results obtained for Greenland halibut (Reinhardtius hippoglossoides), American plaice (Hippoglossoides platessoides), roughhead grenadier (Macrourus berglax) and threebeard rockling (Gaidropsarus ensis). For the two flatfish species, the proportion of retention increased with the duration of the haul. This increase reflected in a decrease of the corresponding selection factor. It also varied with the size of fish. The selection factor was greater in smaller individuals, and this induced an asymmetry in the selectivity curve. For the groundfish species, data were enough only to fit the four hour selectivity curves, which appeared more symmetrical than the flatfish ones. |
format |
Report |
author |
Cárdenas-González, Enrique de Ávila-de-Melo, Antonio Saborido-Rey, Francisco Iglesias-Martínez, Sergio |
author_facet |
Cárdenas-González, Enrique de Ávila-de-Melo, Antonio Saborido-Rey, Francisco Iglesias-Martínez, Sergio |
author_sort |
Cárdenas-González, Enrique de |
title |
Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area |
title_short |
Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area |
title_full |
Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area |
title_fullStr |
Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area |
title_full_unstemmed |
Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area |
title_sort |
selectivity of 130 mm mesh size in deep sea bottom trawl fishery in nafo regulatory area |
publisher |
Northwest Atlantic Fisheries Organization (NAFO) |
publishDate |
1997 |
url |
http://hdl.handle.net/10508/1601 http://hdl.handle.net/10261/329054 |
op_coverage |
Atlantic Ocean North Atlantic Northwest Atlantic |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic Northwest Atlantic |
genre_facet |
Greenland North Atlantic Northwest Atlantic |
op_relation |
Centro Oceanográfico de Vigo Cárdenas, E. de et al. 1997. Selectivity of 130 mm Mesh Size in Deep Sea Bottom Trawl Fishery in NAFO Regulatory Area. NAFO Sci. Coun. Studies, 30: 21-25 http://hdl.handle.net/10508/1601 http://hdl.handle.net/10261/329054 |
op_rights |
open |
_version_ |
1790600851581042688 |