A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass
We review the fishery and biological investigations carried out in the Flemish Cap and Flemish Pass area during the 25 years of NAFO history. In particular, we examine the information available on the biology and population structure of roughhead grenadier recorded in the following 7 research survey...
Published in: | Journal of Northwest Atlantic Fishery Science |
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Language: | English |
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Centro Oceanográfico de Vigo
2005
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Online Access: | http://hdl.handle.net/10508/823 https://doi.org/10.2960/J.v37.m567 |
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ftieo:oai:repositorio.ieo.es:10508/823 2023-05-15T17:34:25+02:00 A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass Murua, H. (Hilario) González-Costas, F. (Fernando) Power, D. (Don) Atlantic Ocean North Atlantic Northwest Atlantic Flemish Cap 2005-10-21 http://hdl.handle.net/10508/823 https://doi.org/10.2960/J.v37.m567 eng eng Centro Oceanográfico de Vigo doi:10.2960/J.v37.m567 http://hdl.handle.net/10508/823 Murua, H., González, F, Power, D. 2005. A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass. J. Northw. Atl. Fish. Sci., 37: 13-27 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ CC-BY-NC-ND catches feeding growth Roughhead grenadier reproduction article 2005 ftieo https://doi.org/10.2960/J.v37.m567 2022-07-26T23:46:50Z We review the fishery and biological investigations carried out in the Flemish Cap and Flemish Pass area during the 25 years of NAFO history. In particular, we examine the information available on the biology and population structure of roughhead grenadier recorded in the following 7 research surveys carried out in the Flemish Cap and Flemish Pass area (NAFO Div. 3LMN): Russian bottom trawl research survey (1974–86), Russian longline research survey (1982), Canadian deepwater bottom trawl research survey (1991, 1994 and 1995), European Union longline research survey (1996), European Union Flemish Cap bottom trawl research survey (1988–2004), Canadian autumn bottom trawl research survey (1978–2004) and Spanish 3NO bottom trawl research survey (1995–2004). In addition, biological data collected aboard Spanish commercial fishery vessels were analysed from 1997 to 2004. Indices of biomass from various surveys suggest stability during recent years. Most surveys indicated catch rates as well as average fish size increased with depth. Growth studies by sex demonstrated both sexes grew similarly up to 9–10 years, but the male growth was slower thereafter. Estimates of size and age at 50% maturity and fecundity were very similar for the different data sets studied, showing a late maturity and low fecundity. All the studies examined found that the roughhead grenadier show a very wide feeding spectrum. Article in Journal/Newspaper North Atlantic Northwest Atlantic Instituto Español de Oceanografía: e-IEO Journal of Northwest Atlantic Fishery Science 37 13 27 |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
catches feeding growth Roughhead grenadier reproduction |
spellingShingle |
catches feeding growth Roughhead grenadier reproduction Murua, H. (Hilario) González-Costas, F. (Fernando) Power, D. (Don) A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass |
topic_facet |
catches feeding growth Roughhead grenadier reproduction |
description |
We review the fishery and biological investigations carried out in the Flemish Cap and Flemish Pass area during the 25 years of NAFO history. In particular, we examine the information available on the biology and population structure of roughhead grenadier recorded in the following 7 research surveys carried out in the Flemish Cap and Flemish Pass area (NAFO Div. 3LMN): Russian bottom trawl research survey (1974–86), Russian longline research survey (1982), Canadian deepwater bottom trawl research survey (1991, 1994 and 1995), European Union longline research survey (1996), European Union Flemish Cap bottom trawl research survey (1988–2004), Canadian autumn bottom trawl research survey (1978–2004) and Spanish 3NO bottom trawl research survey (1995–2004). In addition, biological data collected aboard Spanish commercial fishery vessels were analysed from 1997 to 2004. Indices of biomass from various surveys suggest stability during recent years. Most surveys indicated catch rates as well as average fish size increased with depth. Growth studies by sex demonstrated both sexes grew similarly up to 9–10 years, but the male growth was slower thereafter. Estimates of size and age at 50% maturity and fecundity were very similar for the different data sets studied, showing a late maturity and low fecundity. All the studies examined found that the roughhead grenadier show a very wide feeding spectrum. |
format |
Article in Journal/Newspaper |
author |
Murua, H. (Hilario) González-Costas, F. (Fernando) Power, D. (Don) |
author_facet |
Murua, H. (Hilario) González-Costas, F. (Fernando) Power, D. (Don) |
author_sort |
Murua, H. (Hilario) |
title |
A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass |
title_short |
A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass |
title_full |
A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass |
title_fullStr |
A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass |
title_full_unstemmed |
A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass |
title_sort |
review of the fishery and the investigations of roughhead grenadier (macrourus berglax) in flemish cap and flemish pass |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
2005 |
url |
http://hdl.handle.net/10508/823 https://doi.org/10.2960/J.v37.m567 |
op_coverage |
Atlantic Ocean North Atlantic Northwest Atlantic Flemish Cap |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_relation |
doi:10.2960/J.v37.m567 http://hdl.handle.net/10508/823 Murua, H., González, F, Power, D. 2005. A Review of the Fishery and the Investigations of Roughhead Grenadier (Macrourus berglax) in Flemish Cap and Flemish Pass. J. Northw. Atl. Fish. Sci., 37: 13-27 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.2960/J.v37.m567 |
container_title |
Journal of Northwest Atlantic Fishery Science |
container_volume |
37 |
container_start_page |
13 |
op_container_end_page |
27 |
_version_ |
1766133241157255168 |