1)Test predictions of the empirical model of Rodríguez et al. [The role of mesoscale Vertical motion in controlling the structure of phytoplankton in the ocean. Nature, vol. 410, 360-363 (2001)] for spectra that include cell aggregates biomass and zooplankton fecal pellets 2)Analysis of size structure of plankton and particulate matter transported into deep water along isopycnals surfaces. 3) Analysis of balance between the upstream and downstream flows of carbon through two reference surfaces: the maximum fluorescence subsurface and bottom of the euphotic layer.

- 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

CR Tunibal

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

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

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.