Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO
Data for roughhead grenadier (Macrourus berglax), thorny skate (Amblyraja radiata) and white hake (Urophycis tenuis) from the Spanish Spring survey are presented. Abundance and biomass were estimated for roughhead grenadier and thorny skate for the period 1997-2013 and for white hake for the period...
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Centro Oceanográfico de Vigo
2014
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Online Access: | http://hdl.handle.net/10508/2475 |
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ftieo:oai:repositorio.ieo.es:10508/2475 2023-05-15T17:45:38+02:00 Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO González-Troncoso, D. (Diana) Paz, X. (Xabier) Northwest Atlantic Fisheries Organization (NAFO) 1995-2013 Atlantic Ocean Western Atlantic Northwest Atlantic 2014-06 http://hdl.handle.net/10508/2475 eng eng Centro Oceanográfico de Vigo http://hdl.handle.net/10508/2475 Consejo Científico de NAFO. (30/05/2014 - 12/06/2014. Halifax (Canadá)). 2014. NAFO SCR 14/007, Serial Number N6297 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND article 2014 ftieo 2022-07-26T23:47:11Z Data for roughhead grenadier (Macrourus berglax), thorny skate (Amblyraja radiata) and white hake (Urophycis tenuis) from the Spanish Spring survey are presented. Abundance and biomass were estimated for roughhead grenadier and thorny skate for the period 1997-2013 and for white hake for the period 2001-2013. The length distribution is presented as numbers per haul stratified mean catches for the last five years (2009-2013). The roughhead grenadier indices show no trend during the entire period, reaching a maximum in 2004 - 2006 and afterwards stabilised at levels slightly higher than in the early years. Thorny skate indices follow a large oscillating trend, dropping in 2007 and being since then more or less stables at a low level. White hake biomass index was highest in 2001 and showed an overall decreasing trend since then to 2008, reaching almost the level of 2002 in 2013, although at very low levels compared with the 2001 one. A small recruitment event was detected in 2004 and in 2013, with individuals between 16 - 26 cm. Article in Journal/Newspaper Northwest Atlantic Instituto Español de Oceanografía: e-IEO Hake ENVELOPE(15.612,15.612,66.797,66.797) |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
description |
Data for roughhead grenadier (Macrourus berglax), thorny skate (Amblyraja radiata) and white hake (Urophycis tenuis) from the Spanish Spring survey are presented. Abundance and biomass were estimated for roughhead grenadier and thorny skate for the period 1997-2013 and for white hake for the period 2001-2013. The length distribution is presented as numbers per haul stratified mean catches for the last five years (2009-2013). The roughhead grenadier indices show no trend during the entire period, reaching a maximum in 2004 - 2006 and afterwards stabilised at levels slightly higher than in the early years. Thorny skate indices follow a large oscillating trend, dropping in 2007 and being since then more or less stables at a low level. White hake biomass index was highest in 2001 and showed an overall decreasing trend since then to 2008, reaching almost the level of 2002 in 2013, although at very low levels compared with the 2001 one. A small recruitment event was detected in 2004 and in 2013, with individuals between 16 - 26 cm. |
author2 |
Northwest Atlantic Fisheries Organization (NAFO) |
format |
Article in Journal/Newspaper |
author |
González-Troncoso, D. (Diana) Paz, X. (Xabier) |
spellingShingle |
González-Troncoso, D. (Diana) Paz, X. (Xabier) Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
author_facet |
González-Troncoso, D. (Diana) Paz, X. (Xabier) |
author_sort |
González-Troncoso, D. (Diana) |
title |
Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
title_short |
Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
title_full |
Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
title_fullStr |
Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
title_full_unstemmed |
Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
title_sort |
biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by spain in nafo 3no |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
2014 |
url |
http://hdl.handle.net/10508/2475 |
op_coverage |
1995-2013 Atlantic Ocean Western Atlantic Northwest Atlantic |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_relation |
http://hdl.handle.net/10508/2475 Consejo Científico de NAFO. (30/05/2014 - 12/06/2014. Halifax (Canadá)). 2014. NAFO SCR 14/007, Serial Number N6297 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766148803787751424 |