Estimating the abundance and population structure of the target species of the trawl fishery in the Mediterranean, identified in the MEDITS project (Annex I), studying the biology of exploited communities on the shelf and upper slope of the study area and the impact of fishing on ecosystems.

Estimation by acoustical methods stock biomass of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) Spanish Mediterranean.

Acoustic evaluation and mapping of neritic pelagic resources and oceanographic and biological conditions of the continental shelf of the Gulf of Cadiz.

Estudio de parámetro oceanográficos del Bentos del Ictioplancton y de la fauna demersal orientados a la creaciónn de una reserva de pesca en la bahía de Malaga.

Seguimiento de variables oceanográficas (fisico,quimico y biologicas) a lo largo de puntos singulares del litoral mediterraneo español.

Multidisciplinary cruise: sampling physical and chemical variables that will: - Study thermohaline characteristics, kinematics, dynamics and biology of the eastern half of the Gulf of Cadiz. - Study of carbon flows between the Atlantic and Mediterranean watershed. - Establish relationships between climate, hydrology and hydrodynamics and the early stages of development of the species associated with the platform, with emphasis on species of commercial interest in a space/time. - Provide data to feed global and regional numerical models. - Generate and distribute a database for the evolution of the marine climate and its resources.

Operational configuration of ROMS (Regional Ocean Modeling System) off NorthWest Iberia. In this configuration, two grids are nested during online execution. Data from the coarser (4 km horizontal resolution) 236 x 181 grid force the lateral open boundaries of the finer (~1.3 km) 312 x 167 embedded grid. Outputs at hourly and daily temporal resolution.

The main objectives for the MedSeA cruise are to: - Refine climatological maps of carbonate species distribution (pH, pCO2, CO32-, CT, AT, CaCO3 saturation states), along with their isotopic signatures, in the Mediterranean Sea. - Report on the determination of the anthropogenic carbon distribution throughout the whole Mediterranean Sea and its associated uncertainty estimate - Determine the effects of carbonate chemistry on Mediterranean calcifying and non-calcifying planktonic organisms. - Determine synergistic effects of acidification, warming and nutrients on key pelagic organisms. - Identify and quantify responses of fundamental Mediterranean biogeochemical processes to acidification and warming. - MedSeA is carried out in collaboration with the Geotraces program in order to collect water for chemical large volume trace elements and isotopes such as Th/Pa, Artificial radionuclides, Th-234, Nd-isotopes and Ra.

Estimating the abundance and distribution of demersal stocks, independent of commercial fisheries and the impact of fishing on the environment. It is also proposed: improved characterization of communities circalittoral Balearic platform and determine the role of macro-algal communities at higher trophic levels.

The main aim of the Triennial surveys is to estimate the spawning stock biomass of mackerel and horse mackerel applying the Annual and Daily Egg Production Method (AEPM and DEPM). The method relates the number of freshly spawned eggs found in the water column to the number of female having produced these eggs. Knowing the fecundity of the females and the sex ratio provides an estimate for the spawning-stock Biomass. In the frame of the ICES WGMEGS,AZTI is in charge of sampling the area of the Bay of Biscay during period 3 (March April) and 4 (May). Sampling consist in collecting plankton samples to identify and stage the mackerel and horse mackerel eggs, and capture adults mackerel to estimate reproductive parameters (Fecundity, atresia, Batch fecundity, Spawning Fraction and sex ratio). Data of length, weight, sex maturity and otolith for age determination are recorded at each haul. Therefore, additional samples will be collecting for the following objectives: a) Plankton and Adult mackerel samples for genetic analysis. The objective of this sampling is to determinate the population structure of NEA mackerel and test the spawning homing behaviour. b) Adults mackerel samples for GCxGC-MS analysis for discrimination of spawning ground. c) Fish Eggs for fluorescent and in situ hybridization-Method (ISH). Environmental parameters: At each station profile of sea temperature and salinity are recorded.