- Reconocimiento batimetrico sistematico de las zonas de estudio con recubrimiento al 100%\n- Realizacion de perfiles sismicos segun la derrota del buque\n- Toma de muestras de roca\n- Toma de muestra de sedimientos\n- Toma de datos sistematicos

Annually, the European Union develops two research campaigns in the area of ​​NAFO (North Atlantic Fisheries Organization), one in the 3NO division and another in the 3M and 3L (Flemish Cap Series). This campaign is part of a historical series in order to provide indices for the evaluation of the stock of halibut and other groundfish species in the area such as flounder, redfish, grenadier, cod or shrimp. The Flemish Cap bank is an isolated bank of the American coastal platform with an area greater than 10,000 square miles and is located outside of the Exclusive Economic Zone of Canada. The exploitation of the resources of this area is regulated by the international agreements of NAFO. GOALS Estimation of abundance and biomass indices of the target species, as well as the study and analysis of the demographic structure of their populations and the oceanographic conditions in the Bank.

This third investigation of the spillage of fuel in waters of Galicia and the Cantabrian Sea intended to continue the study of the impact of oil spills. In this edition, the monitoring of the process of recovery of ecosystems and exploited resources involved a study during spring flowering, period of higher production, to quantify the changes in the patterns of distribution and abundance of the communities. This campaign of 'evaluation of the impact of the Prestige discharges on the ecosystem of the platform and its fishing resources in spring time' was attended by researchers from the IEO, SGPM and CSIC. GOALS The general objective was to estimate the impact produced by the Prestige discharge on the demersal and benthic communities present on the continental shelf of Galicia, in soft bottoms between 35 and 500 meters. These communities are subject to considerable fishing exploitation and sustain the economy of numerous coastal towns of Galicia and the Cantabrian Sea. At the same time, geophysical studies were included, aimed at improving the knowledge of the funds of the internal platform, essential for carrying out sampling operations. The study was articulated around the following objectives: WORK AREA A multidisciplinary campaign of 16 days was proposed in the area of ​​the platform between the Ría de Vigo and the mouth of the Bidasoa river. The study was conducted in affected areas of the continental shelf of Galicia and the Cantabrian Sea in funds between 35 and 500 m. To this end, a series of sampling stations arranged in radials and located in five geographical sectors and three depth layers (71-120, 121-200 and 201-500 m) were established, which corresponded to those of the historical series of survey campaigns. of the IEO (following figure). In areas of special interest due to the importance of the discharges, hauls were made at less than 70 m.

This campaign, financed entirely by the Spanish administration, is part of the agreement established between the SGPM and the IEORealization of research program in the fisheries as well as the research project funded by the General Secretariat of R & D of the Xunta de Galicia: Identification of commercial products from La Raya through DNA technology, developed in collaboration with the University of Vigo and the Technological Center of the Sea (CETMAR). Currently there is a moratorium on fishing for the commercial species of the Great Bank of Newfoundland, so the results of this campaign represent a valuable information for the Spanish administration. OBJECTIVES This campaign belongs to the series destined to obtain indices of abundance and to know the structure of the populations of commercial species in the area of ​​Regulation of the NAFO, and in particular in the divisions 3N and 3O. WORK AREA Mainly worked in the queue of the Great Bank of Newfoundland outside the Exclusive Economic Zone of Canada, in divisions 3O and 3N of the area of ​​regulation of NAFO.

Within the framework of cooperation between the Ministry of Agriculture, Fisheries and Food (MAPA) and the Ministry of Fisheries of the Republic of Angola, the campaign to evaluate the main species of crustaceans and other demersal resources of existing fishing interest was undertaken on the platform and slope of the Exclusive Economic Zone of the Republic of Angola. WORK AREA The investigation was developed in the area of ​​the platform and the slope of the Exclusive Economic Zone of the Republic of Angola between the parallels 5º S and 12º S, from 12 miles from the coast, counted from the baseline, to the Isobot of the 800 meters deep.

This campaign to evaluate deep demersal resources on the coasts of Algeria responds to the need to update and expand the studies and evaluations carried out in the 1980s. During this fishing prospecting campaign, 55 catches were made between 200 and 800 meters deep, using bottom trawls. To determine the abundance and properties of the main fishing resources of Algeria, it was necessary to obtain prior knowledge of the characteristics of the seabed on the sampled fishing beaches. Likewise, the precise knowledge of the bathymetry and morphology of the bottom optimized the trawl work and, in short, the achievement of the fishing campaign. GOALS Image of ship's personnel releasing trawl - Bathymetric and morphological recognition of the seabed in the upper slope and the Algerian coast. - Know the biological structure of demersal communities subjected to exploitation in the upper and middle slope of the study area. - Obtain indices of abundance and biomass of the main deep demersal species (hake, monkfish, white prawn, Norway lobster and red shrimp). - Characterize the demographic structure of the main demersal species exploited on the slope, as well as its geographical and bathymetric distribution. - Collect data and collect samples (otoliths) from deep demersal species for growth and reproduction studies. WORK AREA The bathymetric surveys were carried out at night, in such a way that sufficient time was available to elaborate the bathymetric maps and digital terrain models. This allowed the selection of the haul zones and served as an electronic cartography for navigation.

The oceanographic vessel Vizconde de Eza developed its first research campaign in Galicia as a result of the unfortunate accident and sinking of the Prestige oil tanker. In January of 2003, this project was undertaken to estimate the impact produced by the discharge of hydrocarbon on the demersal communities on the continental shelf of Galicia, in soft bottoms between 90 and 500 m, testing new acoustic methods for the detection of fuel the depths fixed. This multidisciplinary campaign took place over eight days on board the B / O Vizconde de Eza in the area of ​​the continental shelf between the Ría de Muros and La Coruña. The study of the main members of the bottom communities (infauna, epifauna, suprabenths and benthic and demersal macrofauna) was included, for which 20 sampling stations were established located in the three strata of the standardized trawl campaigns (70 - 120, 121 - 200 and 201 - 500 meters).

Abundance indices, distribution patterns and faunal assemblages of demersal species in the northern coast of Spain (Atlantic Galician shelf and Cantabrian sea shelf), together with the possible driving factors of their distribution. This survey belongs to the research project: 'Evaluacion de Recursos Demersales por Métodos Directos en el área ICES'. This Project is partly funded by the DCR of the EU and the Education and Science Spanish Ministery.The main objectives of the above mentioned project related with this survey time series are: a) to obtain abundance indices of the main exploited species in the study area; b) to estimate the strength of yearly recruitments of these species and their distribution in the area. c) to study the structure and distribution o the demersal and benthic communities in the area.

Influence of oceanographic structure and dinamics on DEmersal populations in waters of the BAlearic Islands

Influence of oceanographic structure and dinamics on DEmersal populations in waters of the BAlearic Islands