Catálogo de datos del IEO
Creation year
2006
182 record(s)
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Monthly sampling of physical, chemical and biological variables at N Spanish Coast
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Monthly sampling of physical, chemical and biological variables at N Spanish Coast
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Monthly sampling of physical, chemical and biological variables at N Spanish Coast
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The ECOMED 2006 is an annual echosurvey for estimation of the abundance and biomass of small pelagic fish present in the Mediterranean Sea in autum, at the beginning of spawning period for the sardine (Sardina pilchardus) and the recruitmen period for the anchovy (Engraulis encrasicolus).These main species are sardine and anchovy, but on estimed also Sardinella aurita, Trachurus mediterraneus, T. trachurus, T. picturatus, Boops boops, Scomber japonicus and Scomber scomber. Complementary to this main objectives, also sampling for sardine fecundity parameters estimation. Continuous fish eggs sampling and temperature and salinity for sardine spawning area caracterisation.
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Hydrographical cruise W Iberian peninsula and Celtic-Cantabrian sea. 65 depth CTD, 2 RCM moorings, LADCP
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Seasonal survey to study the annual and interannual variability of ocean circulation in the eastern border of the North Atlantic sub-tropical gyre.
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Acoustic survey, conducted with an annual periodicity, to assess and map the pelagic (neritic) resources and the oceanographic and biological conditions of the Gulf of Cadiz continental shelf (both Spanish and Portuguese waters, ICES Subdivision IXa South). 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. Biological characterization of the pelagic community is sampled by opportunistic pelagic trawls (for identification of echo-traces), which are also performed during the day. 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. Oceanographic characterization of the surveyed area from both discrete (CTD profiles in night stations) and continuous sampling (Thermosalinometer-fluorimeter) coupled to the CUFES sampling. Additional night pelagic trawls were also performed in order to collate some extra biological material and to carry out specific experiments (e.g., in situ determination of the anchovy target strength, TS; nictimeral behavior?).
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1.- Estimacion de los indices de abundancia (numero y biomasa), de las especies demersales de mayor interes pesquero, asi como de la fauna asociada a ellas. 2.- Determinacion de la distribucion geografica y batimetrica de las diferentes especies. 3.- Obtencion de las distribuciones de tallas de peces, de las capturas asi como de los crustaceos y moluscos de interes pesquero. 4.- Extraccion de otolitos de merluza. 5.- Obtencion de datos biologicos de las principales especies comerciales: estados de madurez, proporcion de sexos 6.- Obtencion de datos oceanograficos.
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Oceanographic survey collected in the framework of the following research project: ?PROCESOS MORFO-SEDIMENTARIOS Y ESTRATIGRAFIA DE ALTA RESOLUCION DE DEPOSITOS MARINOS SOMEROS EN LATITUDES MEDIAS: REGISTRO DE LA VARIABILIDAD AMBIENTAL Y APLICACIONES PARA LA GESTION COSTERA (CTM2005-04960/MAR)?. This Project is funded by the Education and Science Spanish Ministery for the period 2006-2008.The above mentioned project has two main scientific objectives: a) to determine recent environmental changes (oceanographic and sea-level influences) imprinted in shallow-water deposits previously identified in a sector of the Gulf of Cadiz shelf close to the Straits of Gibraltar; b) to apply the knowledge about sedimentary processes and architecture of shelf deposits to the coastal zone integrated management.
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Oceanographic survey collected in the framework of the following research project: 'INTERCAMBIOS EN EL ESTRECHO DE GIBRALTAR Y SU RESPUESTA A FORZAMIENTOS METEOROLOGICOS Y CLIMATICOS, INGRES (REN03-01608/MAR)'. This Project is funded by the Education and Science Spanish Ministery for the period 2004-2006.The technical objetive of the mission is to recover and to deploy a mooring system in a monitoring station (Espartel) in the Strait of Gibraltar to estimate the Mediterranean Outflow accurately (ADCP - based observations) and the Atlantic Inflow into the Mediterranean Sea, with the help of indirect estimators and incomplete currentmeter data sets.