This survey covers the international NAFO Regulation Area in divisions 3NO. It started in 1995 with the only purpose of collecting data for stock assessment of target species down to 700 m, but its aims and research area have widened with time. Currrently, the survey covers a depth range of 50-1500 m and its goals are the following: 1. Regarding the target species (Hippoglossoides platessoides, Limanda ferruginea, Reinhardtius hippoglossoides, Glyptocephalus cynoglossus, Gadus morhua, Sebastes sp, Macrourus berglax, Centroscyllium fabricii and Raja radiata) and other species of commercial interest (Urophycis tenuis; Pandalus borealis) : a. to obtain biomass and abundance indexes, b. to estimate recruitment, c. to investigate the population structure To achieve this, biological information (length, weight, sex, maturity, stomach contents) is obtained from about 30 species, as well as otoliths and gonads from cod, Greenland halibut and roughead grenadier. The remaining fish and commercial invertebrate species are length measured and weighted. 2. Collection of oceanographic data (temperature, salinity, oxygen and fluorescence); 3. Invertebrate data collection: all species are identified to the maximum possible level on board, or otherwise photographed and preserved for later examination at the lab, counted and weighted, with the aim of investigating the benthic invertebrate faunal assemblage and presence of vulnerable species

The surveys on NAFO Regulatory Area of Div. 3L (Flemish Pass) were initiated by Spain in 2003. The surveys were carried out by the R/V ¿Vizconde de Eza¿ following the same procedures and using the same bottom trawl net type Campelen. The main objectives of this survey time series are: a) to obtain abundance indices of the main exploited species, b) to study the structure and distribution of these demersal species in the area.

This survey covers the international NAFO Regulation Area in divisions 3NO. It started in 1995 with the only purpose of collecting data for stock assessment of target species down to 700 m, but its aims and research area have widened with time. Currrently, the survey covers a depth range of 50-1500 m and its goals are the following: 1.Regarding the target species (Hippoglossoides platessoides, Limanda ferruginea, Reinhardtius hippoglossoides, Glyptocephalus cynoglossus, Gadus morhua, Sebastes sp, Macrourus berglax, Centroscyllium fabricii and Raja radiata) and other species of commercial interest (Urophycis tenuis; Pandalus borealis) : a) to obtain biomass and abundance indexes b) to estimate recruitment, c) to investigate the population structure To achieve this, biological information (length, weight, sex, maturity, stomach contents) is obtained from about 30 species, as well as otoliths and gonads from cod, Greenland halibut and roughead grenadier. The remaining fish and commercial invertebrate species are length measured and weighted. 2..Collection of oceanographic data (temperature, salinity, oxygen and fluorescence); 3.Invertebrate data collection: all species are identified to the maximum possible level on board, or otherwise photographed and preserved for later examination at the lab, counted and weighted, with the aim of investigating the benthic invertebrate faunal assemblage and presence of vulnerable species.

The surveys on NAFO Regulatory Area of Div. 3L (Flemish Pass) were initiated by Spain in 2003. The surveys were carried out by the R/V 'Vizconde de Eza' following the same procedures and using the same bottom trawl net type Campelen. The main objectives of this survey time series are: a) to obtain abundance indices of the main exploited species, b) to study the structure and distribution of these demersal species in the area.

The surveys on NAFO Regulatory Area of Div. 3L (Flemish Pass) were initiated by Spain in 2003. The surveys were carried out by the R/V 'Vizconde de Eza' following the same procedures and using the same bottom trawl net type Campelen. The main objectives of this survey time series are: a) to obtain abundance indices of the main exploited species, b) to study the structure and distribution of these demersal species in the area.

This survey covers the international NAFO Regulation Area in divisions 3NO. It started in 1995 with the only purpose of collecting data for stock assessment of target species down to 700 m, but its aims and research area have widened with time. Currrently, the survey covers a depth range of 50-1500 m and its goals are the following: 1. Regarding the target species (Hippoglossoides platessoides, Limanda ferruginea, Reinhardtius hippoglossoides, Glyptocephalus cynoglossus, Gadus morhua, Sebastes sp, Macrourus berglax, Centroscyllium fabricii and Raja radiata) and other species of commercial interest (Urophycis tenuis; Pandalus borealis) : a. to obtain biomass and abundance indexes, b. to estimate recruitment, c. to investigate the population structure To achieve this, biological information (length, weight, sex, maturity, stomach contents) is obtained from about 30 species, as well as otoliths and gonads from cod, Greenland halibut and roughead grenadier. The remaining fish and commercial invertebrate species are length measured and weighted. 2. Collection of oceanographic data (temperature, salinity, oxygen and fluorescence); 3. Invertebrate data collection: all species are identified to the maximum possible level on board, or otherwise photographed and preserved for later examination at the lab, counted and weighted, with the aim of investigating the benthic invertebrate faunal assemblage and presence of vulnerable species

1) Recogida de los datos necesarios para estimar los índices de abundancia y biomasa de las especies de interés comercial, listadas a continuación: - bacalao (Gadus morhua) - gallinetas (Sebastes spp) - platija (Hippoglossoides platessoides) - fletán negro (Reinhardtius hippoglossoides) - limanda (Limanda ferruginea) - granadero (Macrourus berglax) - raya (Amblyraja radiata) - mendo (Glyptocephalus cynoglossus) - tiburón negro (Centroscyllium fabricii) - bertorella tenuis (Urophycis tenuis) - camarón (Pandalus borealis) 2) Muestreo de contenidos estomacales (frecuencia bienal - años pares) 3) Recogida de datos hidrográficos con una batisonda 4) Identificación de organismos invertebrados

El objetivo de la campaña es conocer el estado de las poblaciones de las especies objetivo: su abundancia, biomasa y estructura demográfica, y las condiciones oceanográficas en el Banco. Este objetivo implica las siguientes acciones: • Prospectar el área de Flemish Cap, División 3M de NAFO hasta profundidades de 1460 m (800 brazas) mediante un muestreo aleatorio estratificado, haciendo 181 pescas válidas de arrastre con un arte Lofoten, diurnas: entre las 6.00 y las 22.00 horas, y una duración efectiva de arrastre de 30 minutos. • Realizar en cada pesca un muestreo biológico detallado de la captura para cada una de las especies objetivo, que incluya muestreos de talla, sexo, peso, otolitos y gónadas. Para las demás especies sólo se hará muestreo de tallas y muestreos talla-peso. • Análisis de los contenidos estomacales de las principales especies capturadas, a realizar cada dos años. • Identificación y registro de todas las especies de invertebrados presentes en las capturas. • Registrar las condiciones oceanográficas en el banco haciendo estaciones de CTD para cubrir un retículo con 15 millas de separación, tanto en longitud como en latitud.

The surveys on NAFO Regulatory Area of Div. 3L (Flemish Pass) were initiated by Spain in 2003. The surveys were carried out by the R/V “Vizconde de Eza” following the same procedures and using the same bottom trawl net type Campelen. The main objectives of this survey time series are: a) to obtain abundance indices of the main exploited species, b) to study the structure and distribution of these demersal species in the area.