Monthly sampling of physical, chemical and biological variables at N Spanish Coast

Oceanographic survey collected in the framework of the following research project: ¿Métodos de Producción de Huevos. Estimación de la biomasa de especies pelágicas de interés comercial: sardina, anchoa, caballa y jurel (ICTIOEVA)¿. This Project is funded by the Instituto Español de Oceanografía and the main scientific objective is to produce an index and a direct estimate of the biomass of the Northeast Atlantic mackerel stock and the southern and western horse mackerel stocks using the Annual Egg Production Method (AEPM). Specific aims:a) To estimate the spawning area distribution of mackerel and horse mackerel and the daily and total mackerel and horse mackerel egg production. b) To collect adults to obtain mackerel and horse mackerel gonads for atresia and fecundity estimation c) Distribution and abundance of other commercial species of interest: sardine, anchovy, hake, blue whiting.d) To describe the oceanographic and meteorological character of the area of study with the aim of relating environmental conditions (temperature, salinity, currents) with the spatial distribution of the ichthyoplankton

The objectives of this cruise are framed on the project "Radial Profunda de Canarias (RAPROCAN-II)". This Project is funded by the Instituto Español de Oceanografía and the main scientific objectives are: a)Characterize the different ways of variability of heat and mass transport at the eastern end of the subtropical gyre. b)Determine the structure of current that reaches the Canary Islands, their mass transport, heat and nutrients and their interannual variability. c)Determine the correlation between heat and mass transport with the atmospheric and oceanic NAO index. d)Characterize the annual cycle in the physical condition of the surface and mixed layers as far as the seasonal cycle is significant, relating to meteorological forcing. e)Characterize of changes in water masses, mainly in the North Atlantic Central Water (NACW), Intermediate Water (AAIW), Mediterranean Water (MW) and bottom water of the Canary basin, studying their characteristics of temperature, salinity, nutrients and oxygen.

Oceanographic survey collected in the framework of the PESCADIZ, STOCA and INGRES3 projects. PESCADIZ is funded by the Instituto Español de Oceanograf¿a / DCRP and the main scientific objective is to produce an index and a direct estimate of the biomass of demersal target species in the Gulf of Cádiz together with the hydrographic caracterization at the time of the cruise. STOCA is a program conducting systematic hydrographic and plankton observations along three standard sections in the eastern Gulf of Cadiz. INGRES3 is a Spanish Ministry for Science and Innovation funded project that maintains a mooring line at the Spartel sill in the Strait of Gibraltar

Oceanographic survey collected in the framework of the following research project: ¿Métodos de Producción de Huevos. Estimación de la biomasa de especies pelágicas de interés comercial: sardina, anchoa, caballa y jurel (ICTIOEVA)¿. This Project is funded by the Instituto Español de Oceanografía and the main scientific objective is to produce an index and a direct estimate of the biomass of the Northeast Atlantic mackerel stock and the southern and western horse mackerel stocks using the Annual Egg Production Method (AEPM). Specific aims:a) To estimate the spawning area distribution of mackerel and horse mackerel and the daily and total mackerel and horse mackerel egg production. b) To collect adults to obtain mackerel and horse mackerel gonads for atresia and fecundity estimation c) Distribution and abundance of other commercial species of interest: sardine, anchovy, hake, blue whiting.d) To describe the oceanographic and meteorological character of the area of study with the aim of relating environmental conditions (temperature, salinity, currents) with the spatial distribution of the ichthyoplankton

Oceanographic survey collected in the framework of the PESCADIZ and STOCA projects. PESCADIZ is funded by the Instituto Español de Oceanografía / DCRP and the main scientific objective is to produce an index and a direct estimate of the biomass of demersal target species in the Gulf of Cádiz together with the hydrographic caracterization at the time of the cruise. STOCA is a program conducting systematic hydrographic and plankton observations along three standard sections in the eastern Gulf of Cadiz.

Acoustic survey, conducted with an annual periodicity, to assess and map the small- and mid-sized pelagic (neritic) species¿ resources and the oceanographic and biological conditions of the Gulf of Cadiz continental shelf (both Spanish and Portuguese waters, ICES Subdivision IXa South, from Cape Trafalgar to Cape San Vicente, between 20 and 200 m depth). The survey season coincides with the anchovy (Engraulis encrasicolus) peak spawning in order to estimate the anchovy SSB by echo-integration. The acoustic sampling for assessment by echo-integration is performed during daylight hours (at a 10-knot speed). Biological characterization of the pelagic community is sampled by opportunistic pelagic trawls (for identification of echo-traces), which are also performed during the day (at a 4-knot speed). Ancillary biological information (fish eggs) sampled with CUFES (Continuous Underway Fish Egg Sampler) and coupled to the acoustic sampling. Occurrence of sea birds, turtles, and mammals is also recorded along the acoustic transects through census techniques. Oceanographic characterization of the surveyed area from both discrete (CTD profiles in night stations) and continuous sampling (Thermosalinometer-fluorimeter) coupled to the CUFES sampling. This year, ad hoc Bongo 40 stations arranged in two additional transects were also carried out in order to characterize the ichthyoplankton and mesozooplankton species assemblages in the eastern sector of the study area (Guadalquivir river mouth-Trafalgar) and their relationships with environmental conditions.

Thermohaline and Biochemical characterization in tree standard transects belonging to Galician-Cantabric Sea waters: Finisterre, Ortegal and Cabo Mayor (Santander), covering the whole water column in every single station.

Depositional outline systems generated by Mediterranean water around the Iberian Peninsula: trends and enviaronmental implications

Benthopelagic ecosystem structure in the western Mediterranean: a multidisciplinary approach and different time scales in the Balearic Islands.