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Cr. CEE 90. Control of Phytoplankton Dominance. - ref 900911.0004
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FWO MINIMOUND Project: Using Cold-water coral mini-mounds as analogue for giant mound growth: assessment of environmental drivers and anthropogenic impact Cold-water corals (CWC) are found along the entire north-eastern Atlantic Margin from Norway to the Gulf of Cadiz. In the Porcupine Seabight, these coral reefs (mainly Lophelia pertusa and Madrepora oculata) accumulate into large mounds of up to 250m high (e.g. Challenger Mound), which have been well studied over the past two decades (Roberts et al., 2006). The detailed mechanism of the start-up phase of such large CWC mounds is however not yet fully understood. Therefore, it is essential to study analogues of these stages that are not well recorded in larger mounds. The FWO MINIMOUND project (2013-2016) aims to investigate the initiation, growth and demise of small CWC mounds and to determine the role of climatic and hydrocarbon-seepage related processes as well as anthropogenic impact. This high-resolution multidisciplinary study will focus on three minimound provinces along the Biscay continental margin: (1) the Explorer and Dangeard Canyons on the Celtic Margin (Fig. 1; Stewart et al., 2013), (2) the Guilvinec Canyon on the Armorican Margin (De Mol et al., 2011) and (3) the Upper Ferrol Canyon on the Cantabrian Margin (Fig. 1). These minimounds are fossil (9.7 ka BP) and occur at relative shallow depth on the interface between the Eastern North Atlantic Central Water (ENACW) and the Mediterranean Outflow Water (MOW). Contrastingly, most present-day living CWC reef habitats dwell in the deeper MOW depth range, relying on the density and dynamics of this water mass for their food supply.   The objectives of the project are threefold: (1) the establishment of a chronostratigraphic framework and the reconstruction of palaeoceanographic changes over the last 15.000 years in order to determine the impact of glacial to interglacial climate change on the ENACW-MOW interface and the CWC habitats (Frank et al., 2011); (2) the minimound province at the Upper Ferrol Canyon shows a close association with hydrocarbon-seepage (pockmarks) which allows to assess the role of hydrocarbon related processes in CWC mound formation; (3) the potential impact of anthropogenic fisheries activities will be investigated. These objectives will be tackled through a coupled geophysical, sedimentological and integrative approach, including the palaeoceanographic and biogeochemical study of sediment cores in cooperation with the BGS (UK), LSCE (Gif-sur-Yvette, France), IFREMER (France), IGME (Spain) and IEO (Spain). This Belgica2015/15 cruise is the second campaign of the project and it aims to sample both on-mound as off-mound sites by means of a 4.5 m vibrocorer (Supplied by the British Geological Survey, BGS). The target site are located on the upper slopes of the Ferrol Canyon (Cantabrian margin, Spanish EEZ) and the Guilvinec Canyon (Armorican margin, French EEZ) between 200 and 600 m water depth. In each sector, a minimum of 3 days of activities will be scheduled. In case of bad weather on 1 sector, the program will be revised towards the other sector. With respect to the size of these mounds, the coring location of the vibrocorer will be steered by means of am IXSEA USBL GAPS system. During night-time, the seafloor will be visually characterized using a small and light-weight camera dropframe (University of Plymouth).
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- Levantamientos hidrograficos sistematicos y exhaustivos que permitan el cartografiado total de sus fondos\n- Realizar exploraciones geofisicas que permitan determinar su constitucion y fisiografia \n- Llevar acabo coampa?as oceanograficas sistematicas para el estudio de los procesos fisicos\n- Procesar y tratar los datos obtenidos en las campa?as para la obtencion de mapas, cartas e informesen los cuales se definan las caracteristicas y el potencial economico de la ZEE\n- Hacer tratamiento informatico necesario para la integracion de datos en bancos de datos interactivos.\n- Poner a disposicion de la comunidad cientifica e industrial toda la informacion, salvo la restringida por afectar a la seguridad nacional.\n
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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 as gravity, geomagnetic and ultra-high resolution seismic data (TOPAS system).This project is 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 Secretaría General Técnica 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 August 29th at Cartagena and finished at La Coruña on September 13th. It was planned in order to cover two bathymetric charts (G17 and G18) to the NW of Galicia, but the bad weather led to complete only bathymetric chart G17 and partially G18.
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- Exploraciones geofisicas que permitan determinar su constitucion y fisiografia\n- Estudio de procesos fisicos\n- Procesado y tratamiento de datos, para la obtencion de mapas, cartas e informes\n- Estudio de batimetria, geomorfologia, gravimetria, magnetometria y calidades de sedimentos superficiales de las zonas estudiadas
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- Levantamientos hidrograficos sistematicos y exhaustivos que permitan el cartografiado total de sus fondos\n- Realizar exploraciones geofisicas que permitan determinar su constitucion y fisiografia \n- Llevar acabo coampa?as oceanograficas sistematicas para el estudio de los procesos fisicos\n- Procesar y tratar los datos obtenidos en las campa?as para la obtencion de mapas, cartas e informesen los cuales se definan las caracteristicas y el potencial economico de la ZEE\n- Hacer tratamiento informatico necesario para la integracion de datos en bancos de datos interactivos.\n- Poner a disposicion de la comunidad cientifica e industrial toda la informacion, salvo la restringida por afectar a la seguridad nacional.\n
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SUMMARY:The project PLATERIAS financed by Xunta de Galicia in its sectoral program of Tecnoloxias Ambientais has as objective the study of the physical oceanography of the continental shelf and rias of Galicia by means of the development and integration of the existent observation network and the demonstration of the feasibility of the modelizacion of the dynamics of the rias of Galicia and the adjacent shelf by means of a hydrodynamic model coupled to a meteorological mesoscale regional and local high resolution model. This campaign is intended to contribute to the knowledge of the interaction between the rias and the shelf. OBJECTIVES:-To study the interaction between the rias and the shelf, particularly in the Ria de Ares.- Recovery a mooring in the channel in order to characterize the incoming and outgoing flow of the ria.- Performance of transects of CTD profiles across the main channel in the mouth of the ria to characterize the ria-shelf exchanges.
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Mejorar el conocimiento de la hidrografia, circulacion costera de la plataforma N-NW de la Peninsula Iberica. Abundancia de larvas
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PELACUS Give an improved estiamtion of the abundance of pelagic fish present in the NE Atlantic 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. t/S, 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. - ref 0403
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PELACUS Give an improved estiamtion of the abundance of pelagic fish present in the NE Atlantic 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. t/S, 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. - ref 0403