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Cr. CEE 90. Control of Phytoplankton Dominance. - ref 900911.0004
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Abundance indices, distribution patterns and faunal assemblages of demersal species in the northern coast of Spain (Atlantic Galician shelf and Cantabrian sea shelf), together with the possible driving factors of their distribution. This survey belongs to the research project: ?Evaluacion de Recursos Demersales por Metodos Directos en el Area ICES?. This Project is partly funded by the DCR of the EU and the Education and Science Spanish Ministery.The main objectives of the above mentioned project related with this survey time series are: a) to obtain abundance indices of the main exploited species in the study area; b) to estimate the strength of yearly recruitments of these species and their distribution in the area. c) to study the structure and distribution o the demersal and benthic communities in the area.
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Abundance indices, distribution patterns and faunal assemblages of demersal species in the northern coast of Spain (Atlantic Galician shelf and Cantabrian sea shelf), together with the possible driving factors of their distribution. This survey belongs to the research project: ?Evaluacion de Recursos Demersales por Metodos Directos en el Area ICES?. This Project is partly funded by the DCR of the EU and the Education and Science Spanish Ministry.The main objectives of the above mentioned project related with this survey time series are: a) to obtain abundance indices of the main exploited species in the study area; b) to estimate the strength of yearly recruitments of these species and their distribution in the area. c) to study the structure and distribution o the demersal and benthic communities in the area.
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Caracterizacion f??sica, biogeoqu??mica y producci??n planct??nica en tres ambientes ecologicos que se observan durante el invierno (aguas continentales,intrusion de la corriente costera superficial paralela a lacosta y aguas oce??nicas) y el estudio de los frentes costeros que delimitan estos ambientes.
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Mejorar el conocimiento de la hidrografia de la costa NW de Espana mediante la obtencion de medidas sinopticas
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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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Give an improved estiamtion of the abundance of pelagic fish present in the Mediterranean Sea waters in spring which is the spawning period for these fish species, but focussing in sardine and anchovy. Complementary to this main objective the survey design and strategies will allow the enviroment be characterised by recording differente variables (i. e. temperature, salinity, fluorescence, plankton, winds or air temperature) in vertical and horizontal profiles along the surveyed area with no noticeable extra-effort. As it was pointed out, these variables will help the acoustic estimations be improved whilst an extensive environment characterisation at the spawning time will be done.
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CR CANTABRICO 02/95 - ref 130
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La creciente necesidad de informacion que requiere la evaluacion y gestion actuales de las especies explotadas, especialmente en el caso de la merluza, pero tambien en otros como los gallos, rapes o la cigala, hacen necesario obtener informacion independiente de las pesquerias sobre la situacion de estas poblaciones. Para lo cual se determino la realizacion de los siguientes objetivos:\nEstimacion de indices de abundancia estratificados por edad de merluza, rapes y gallos en las divisiones VIIbk.\nEstimacion de indices de abundancia estratificados de otras especies comerciales como la cigala, el mendo, las rayas o la brotola de fango.\nEstimacion de la fuerza de los reclutamientos y localizacion de las agregaciones de juveniles de merluza, rapes y gallos.\nDescripcion de los patrones de distribucion espacial de las especies demersales y bentonicas en el banco de Porcupine.\nObtencion de muestras de especies comerciales para estudios de niveles de contaminacion por arsenico y metales pesados.\nRecogida de muestras de especies para el estudio de la biologia de las principales especies comerciales en el area (otolitos, ilicios y otros).\nEstudio de la hidrografia (temperatura, salinidad y densidad de la columna de agua) del banco de Porcupine.\nMarcado de rapes para el estudio de sus migraciones y crecimiento.\nRecogida de ejemplares de jurel para estudios de genetica.
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The overall objective of the cruise was to perform a systematic geophysical survey. The principal aim is to obtain complete bathymetric sea-floor coverage. There are other geophysical data obtained during the cruise, whose acquisition is compatible with the navigation requirements of the multibeam survey, such asgravity, geomagnetic and ultra-high resolution seismic data (TOPAS system).This project id the result of a cooperation between the Instituto Hidrografico de la Marina (IHM, Hydrographic Institution of the Spanish Navy) and the Real Observatorio de la Armada (ROA, Royal Observatory of the Spanish Navy), under the control of the Secretaria General Tecnica del Ministerio de Defensa (SEGENTE, General Technical Secretary of the Spanish Defense Department), whith the collaboration of several other institutions and universities.The cruise started on September 3rd at Santander and finished at La Coruña on September 27th. It was planned in order to cover two bathymetric charts (G7 and G8) to the NW of the Galicia Bank, but the good course of the works allowed to go beyond this first objective and finalize also chart G9, which was only partially covered during ZEE-2003 cruise.