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Cornide de Saavedra
189 record(s)
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IEO 0574
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Hidrology and ecosystem evaluation
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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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Cr Alboran76 ref. B2902900.976 ICES created form
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Hidrology and ecosystem evaluation
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Oceanographic survey collected in the framework of the following research project: 'Metodos de Produccion de Huevos. Estimacion de la biomasa de especies pelagicas de interes comercial: sardina, anchoa, caballa y jurel (ICTIOEVA)'. This Project is funded by the Instituto Español de Oceanografia and the main scientific objective is to produce an index and a direct estimate of the spawning stock biomass of Sardine (Sardine pilchardus) in the Cantabrian Sea and Bay of Biscay (to 45°N) using the Daily Egg Production Method (DEPM). Specific aims:a) To estimate the spawning area distribution of sardine and the daily egg production. b) To collect adults to obtain fecundity estimation c) Distribution and abundance of other commercial species of interest: mackerel, horse mackerel and anchovy.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
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The main goal of the INDEMARES CHICA 0211 oceanographic cruise was to study the associated habitats and the environmental conditions related to areas of the gas seepages in the Gulf of Cadiz. For this, the sampling in different mud volcanos was planned using a various methodology: fishing trawl, beam trawl, box corer, gravity corer, benthic trawling dredge, ADCP, and oceanographic sampling carousel (CTD, ADCP, oximeter, turbidity sensor, fluorimeter).The survey was carried out between the 10th February 2011 and the 7th March 2011 having Cadiz as a base port. The fair-weather remained during the campaign except on the 16th February because of the storm conditions.Mud volcanoes (Albolote, Gazul, Anastasya, Tarsis, Pipoca, Chica, Aveiro, Hesperides and Almazan) were sampled on the top, on the slope and on the adjacent areas of each one with the methodologies before mentioned. So, it was collected the following samplings: 47 benthic trawling dredges, 31 beam trawl, 12 fishing trawl, 40 box corers, 10 gravity corers, 132 CTDs and 84 oceanographic sampling carousel.The preliminary results have confirmed the existence of habitats associated with the gas seepages, and other habitats that are included in the Directive Habitats 2000 and OSPAR, as gorgonian reefs over carbonated hard substrate, coral bamboo fields, Isidella, in muddy seafloor, deep sponge aggregations,and communities of the Pennatulacea and of the burrowing megafauna on soft bottoms.
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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.- Obtenci??n de datos biologicos de las principales especies comerciales: estados de madurez, proporcion de sexos 6.- Obtencion de datos oceanograficos.
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ATLOR 1/1972. All measurements were made underway
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Hidrology and ecosystem evaluation