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Cadiz
158 record(s)
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Cr VERA ref C2945823.987 ICES created form
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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: - Métodos 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 Espanol de Oceanografia and the main scientific objective is to produce an index and a direct estimate of the biomass of the Gulf of Cadiz anchovy stock using the Daily Egg Production Method (DEPM). Specific aims: a) To estimate the spawning area distribution of anchovy and the daily and total egg production. b) To collect adults to obtain anchovy gonads for atresia and fecundity estimation c) Distribution and abundance of other commercial species of interest: sardine, horse mackerel 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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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.
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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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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.
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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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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.