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 Withe hake (Urophycis tenuis) from Spanish Spring survey are presented. The abundance and biomass were estimated for the period 1997-2010 for Roughhead grenadier and Thorny skate, and 2001-2010 for White hake. The...
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Centro Oceanográfico de Vigo
2011
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ftieo:oai:repositorio.ieo.es:10508/629 2023-05-15T17:34:25+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) González-Iglesias, M.C. (María de la Concepción) Paz, X. (Xabier) Atlantic Ocean North Atlantic Northeast Atlantic ICES 2011 http://hdl.handle.net/10508/629 eng eng Centro Oceanográfico de Vigo http://hdl.handle.net/10508/629 González Troncoso, D., González, C., Paz, X. 2011. Biomass and length distribution for Roughhead grenadier, Thorny skate and White hake from the surveys conducted by Spain in NAFO 3NO. NAFO Sci. Coun. Res. Doc. 11-007, Serial Nº N5887: 38p. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ CC-BY-NC-ND workingPaper 2011 ftieo 2022-07-26T23:46:48Z Data for Roughhead grenadier (Macrourus berglax), Thorny skate (Amblyraja radiata) and Withe hake (Urophycis tenuis) from Spanish Spring survey are presented. The abundance and biomass were estimated for the period 1997-2010 for Roughhead grenadier and Thorny skate, and 2001-2010 for White hake. The length distribution was obtained and presented in numbers per haul stratified mean catches. The indices of Roughhead grenadier present no trend along the years until 2003, with an increase in years 2004-2006, mainly in 2004. In 2007 the biomass were on the level of 2003 value, with a slight increase since then broken with a new decrease in 2010, reaching again the level of 2007 values. Thorny skate indices starts the series with poor values, increasing constantly up to the historical maximum in 2000, following with a decrease since 2001 until 2003, increased for 2004-2006 and decreased again since 2007. For White hake, there were great catches in 2001, and a sharp decrease since then, broken in 2005 for an increase in the indices, but a new decrease reaching the minimum values of the series in 2008. In 2009 there was a sligth increase, reaching a value between the 2006 and the 2007 biomass, following with a new slight decrease in 2010. Only in 2004 we can see a good presence of individuals between 16 and 26 cm. Report North Atlantic Northeast 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 Withe hake (Urophycis tenuis) from Spanish Spring survey are presented. The abundance and biomass were estimated for the period 1997-2010 for Roughhead grenadier and Thorny skate, and 2001-2010 for White hake. The length distribution was obtained and presented in numbers per haul stratified mean catches. The indices of Roughhead grenadier present no trend along the years until 2003, with an increase in years 2004-2006, mainly in 2004. In 2007 the biomass were on the level of 2003 value, with a slight increase since then broken with a new decrease in 2010, reaching again the level of 2007 values. Thorny skate indices starts the series with poor values, increasing constantly up to the historical maximum in 2000, following with a decrease since 2001 until 2003, increased for 2004-2006 and decreased again since 2007. For White hake, there were great catches in 2001, and a sharp decrease since then, broken in 2005 for an increase in the indices, but a new decrease reaching the minimum values of the series in 2008. In 2009 there was a sligth increase, reaching a value between the 2006 and the 2007 biomass, following with a new slight decrease in 2010. Only in 2004 we can see a good presence of individuals between 16 and 26 cm. |
format |
Report |
author |
González-Troncoso, D. (Diana) González-Iglesias, M.C. (María de la Concepción) Paz, X. (Xabier) |
spellingShingle |
González-Troncoso, D. (Diana) González-Iglesias, M.C. (María de la Concepción) 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) González-Iglesias, M.C. (María de la Concepción) 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 |
2011 |
url |
http://hdl.handle.net/10508/629 |
op_coverage |
Atlantic Ocean North Atlantic Northeast Atlantic ICES |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_relation |
http://hdl.handle.net/10508/629 González Troncoso, D., González, C., Paz, X. 2011. Biomass and length distribution for Roughhead grenadier, Thorny skate and White hake from the surveys conducted by Spain in NAFO 3NO. NAFO Sci. Coun. Res. Doc. 11-007, Serial Nº N5887: 38p. |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766133240386551808 |