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 1997-2014 and for white hake for the period...
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Centro Oceanográfico de Vigo
2015
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ftieo:oai:repositorio.ieo.es:10508/9346 2023-05-15T17:34:14+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) Vilas-Arrondo, N. (Nair) Nogueira, A. (Adriana) 1997-2014 Atlantic Ocean North Atlantic Northwest Atlantic NAFO Div. 3NO 2015-06 http://hdl.handle.net/10508/9346 eng eng Centro Oceanográfico de Vigo http://hdl.handle.net/10508/9346 NAFO Scientific Council 2015. (29/05/2015 - 11/06/2015. Halifax (Canadá)). 2015. NAFO SCR Doc. 15/009. Serial No. N6429 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND Survey NAFO Divisions 3NO Roughhead grenadier Thorny skate White hake workingPaper 2015 ftieo 2022-10-04T23:46:44Z 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 1997-2014 and for white hake for the period 2001-2014. The length distribution is presented as numbers per haul stratified mean catches for the last five years (2010-2014). The roughhead grenadier indices showed no discernible trend until 2012, reaching a maximum in 2004 - 2006 and afterwards stabilised at levels slightly higher than in the early years. In the last two years a decline was appreciated in the indices, reaching in 2014 one of the lowest values of the entire time-series. Thorny skate indices follow a large oscillating trend, dropping in 2007 and being since then more or less stables at a low level, reaching the minimum of the series in 2014. White hake indices were highest in 2001 and then showed an overall decreasing trend until 2008 with low values. Indices increased since then until 2013 but declined again in 2014. A small recruitment event was detected in 2005 and in 2013, with individuals between 16 - 26 cm. Report North Atlantic 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 |
topic |
Survey NAFO Divisions 3NO Roughhead grenadier Thorny skate White hake |
spellingShingle |
Survey NAFO Divisions 3NO Roughhead grenadier Thorny skate White hake González-Troncoso, D. (Diana) Vilas-Arrondo, N. (Nair) Nogueira, A. (Adriana) Biomass and length distribution for roughhead grenadier, thorny skate and white hake from the surveys conducted by Spain in NAFO 3NO |
topic_facet |
Survey NAFO Divisions 3NO Roughhead grenadier Thorny skate White hake |
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 1997-2014 and for white hake for the period 2001-2014. The length distribution is presented as numbers per haul stratified mean catches for the last five years (2010-2014). The roughhead grenadier indices showed no discernible trend until 2012, reaching a maximum in 2004 - 2006 and afterwards stabilised at levels slightly higher than in the early years. In the last two years a decline was appreciated in the indices, reaching in 2014 one of the lowest values of the entire time-series. Thorny skate indices follow a large oscillating trend, dropping in 2007 and being since then more or less stables at a low level, reaching the minimum of the series in 2014. White hake indices were highest in 2001 and then showed an overall decreasing trend until 2008 with low values. Indices increased since then until 2013 but declined again in 2014. A small recruitment event was detected in 2005 and in 2013, with individuals between 16 - 26 cm. |
format |
Report |
author |
González-Troncoso, D. (Diana) Vilas-Arrondo, N. (Nair) Nogueira, A. (Adriana) |
author_facet |
González-Troncoso, D. (Diana) Vilas-Arrondo, N. (Nair) Nogueira, A. (Adriana) |
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 |
2015 |
url |
http://hdl.handle.net/10508/9346 |
op_coverage |
1997-2014 Atlantic Ocean North Atlantic Northwest Atlantic NAFO Div. 3NO |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_relation |
http://hdl.handle.net/10508/9346 NAFO Scientific Council 2015. (29/05/2015 - 11/06/2015. Halifax (Canadá)). 2015. NAFO SCR Doc. 15/009. Serial No. N6429 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766133001119334400 |