Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area
Since 1995, Spain carries out a spring stratified random bottom trawl survey in Div. 3NO of the NAFO Regulatory Area. Mean catches, biomass and length distribution for yellowtail flounder (Limanda ferruginea) are presented for the period 1995-2012, for redfish (Sebastes spp) for the period 1997-2012...
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ftieo:oai:repositorio.ieo.es:10508/1716 2023-05-15T17:33:31+02:00 Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area González-Troncoso, D. (Diana) Guijarro-García, E. (Elena) Paz, X. (Xabier) Atlantic Ocean North Atlantic Northeast Atlantic ICES 2013 http://hdl.handle.net/10508/1716 eng eng Northwest Atlantic Fisheries Organization (NAFO) Centro Oceanográfico de Vigo http://hdl.handle.net/10508/1716 González-Troncoso, D., E. Guijarro-García, X. Paz. 2013. Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area. NAFO Sci. Coun. Res. Doc. 13/011, Serial Nº N6161: 44p. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND workingPaper 2013 ftieo 2022-08-30T23:46:44Z Since 1995, Spain carries out a spring stratified random bottom trawl survey in Div. 3NO of the NAFO Regulatory Area. Mean catches, biomass and length distribution for yellowtail flounder (Limanda ferruginea) are presented for the period 1995-2012, for redfish (Sebastes spp) for the period 1997-2012 and for witch flounder (Glyptocephalus cynoglossus) for the period 2002-2012. Yellowtail flounder does not show a clear trend since 1998; its indices are almost constant throughout this period, with a slight increase in the last four years. Redfish indices oscillate greatly over time, probably because the gear does not sample adequately aggregating pelagic species. There was a sharp increase in 2009. Since 2010 a decreasing trend can be seen, but the indices for these years are still the highest of the series. Good year classes have not been registered recently. Witch flounder is very scarce and also lacks a clear trend in the data series, being the values always poor. Recruitment was quite good at the beginning of the series but very poor in recent years. Report North Atlantic Northeast Atlantic Instituto Español de Oceanografía: e-IEO |
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Instituto Español de Oceanografía: e-IEO |
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ftieo |
language |
English |
description |
Since 1995, Spain carries out a spring stratified random bottom trawl survey in Div. 3NO of the NAFO Regulatory Area. Mean catches, biomass and length distribution for yellowtail flounder (Limanda ferruginea) are presented for the period 1995-2012, for redfish (Sebastes spp) for the period 1997-2012 and for witch flounder (Glyptocephalus cynoglossus) for the period 2002-2012. Yellowtail flounder does not show a clear trend since 1998; its indices are almost constant throughout this period, with a slight increase in the last four years. Redfish indices oscillate greatly over time, probably because the gear does not sample adequately aggregating pelagic species. There was a sharp increase in 2009. Since 2010 a decreasing trend can be seen, but the indices for these years are still the highest of the series. Good year classes have not been registered recently. Witch flounder is very scarce and also lacks a clear trend in the data series, being the values always poor. Recruitment was quite good at the beginning of the series but very poor in recent years. |
format |
Report |
author |
González-Troncoso, D. (Diana) Guijarro-García, E. (Elena) Paz, X. (Xabier) |
spellingShingle |
González-Troncoso, D. (Diana) Guijarro-García, E. (Elena) Paz, X. (Xabier) Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area |
author_facet |
González-Troncoso, D. (Diana) Guijarro-García, E. (Elena) Paz, X. (Xabier) |
author_sort |
González-Troncoso, D. (Diana) |
title |
Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area |
title_short |
Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area |
title_full |
Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area |
title_fullStr |
Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area |
title_full_unstemmed |
Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area |
title_sort |
yellowtail flounder, redfish (sebastes spp) and witch flounder indices from the spanish survey conducted in divisions 3no of the nafo regulatory area |
publisher |
Northwest Atlantic Fisheries Organization (NAFO) |
publishDate |
2013 |
url |
http://hdl.handle.net/10508/1716 |
op_coverage |
Atlantic Ocean North Atlantic Northeast Atlantic ICES |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_relation |
http://hdl.handle.net/10508/1716 González-Troncoso, D., E. Guijarro-García, X. Paz. 2013. Yellowtail flounder, redfish (Sebastes spp) and witch flounder indices from the Spanish Survey conducted in Divisions 3NO of the NAFO Regulatory Area. NAFO Sci. Coun. Res. Doc. 13/011, Serial Nº N6161: 44p. |
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_ |
1766132051348553728 |