BUSCADOR RECOLECTA

ATOS-1 Cruise (29HE20070627) carried out on the Research Vessel Hespérides in 2007, ATOS: Atmospheric inputs of organic carbon and pollutants to the polar ocean: rates, significance and outlook. The ATOS project aims at resolving the increasing role of air-sea exchanges of materials in the polar sea by (1) quantifying the atmospheric inputs of organic carbon and key organic pollutants both in aerosol and gaseous phases; (2) elucidating the role of sea ice cover in controlling these rates and the inputs associated to sea ice melting; (3) evaluating the fate of the materials, by assessing their use by biota and transference up the food webs, and (4) evaluating the effects on microplankton as the entry points of the materials in the food web, through evaluations of cell mortality in relation to pollutant inputs and parallel increases in ultraviolet raditation dosage, and the evaluation of the effect of the materials on planktonic primary production and community respiration. This project will advance current knowledge on the relevance of air-sea interactions for the metabolism, and flow of pollutants, of pelagic polar ecosystems, as well as provide a basis to forecast the effects of future reductions of sea icea in polar seas and oceans on the functioning of the pelagic ecosystems. Moreover, as the atmospheric materials that enter the sea in polar regions are likely to be introduced elsewhere, primarily on land, this research will provide novel insights onto the role of the atmosphere as a vector linking loading of organic carbon and pollutants in temperate and tropical latitudes and the inputs of these materials to polar seas and oceans. Moreover, the process-based examination of the response of microplankton to these inputs will allow formulation of models to forecast responses to future scenarios

SVAIS Cruise (29HE20070802) carried out on the Research Vessel Hespérides in 2007, The aim of the cruise is to reconstruct the changes that occurred on the seabed southwest of the Svalbard Islands (Norway) since the beginning of the glacial conditions, three million years ago, up to the present time. Thus, a better knowledge of the natural evolution of glaciers during past times, warmer than today, will help us a better understanding of current and future climate changes. 8,600 km2 of the seafloor surveyed for bathymetry and subbottom profiling , 516 km of single channel seismic reflection profiles 31 meters of sediment recovered (6 cores)

ZEE-2007 Cruise (29HE20070904) carried out on the Research Vessel Hespérides in 2007, Spanish Exclusive Economic Zone cruise 2007. Hydrography-oceanography research Plan of the Exclusive Spanish Economic Zone

EUROLEON Cruise (29HE20071006) carried out on the Research Vessel Hespérides in 2007, Study the relationships between the current morphology of the seabed, the sedimentary coating and the transport processes of active and past sediments. Integrated analysis of the sedimentary drainage systems of the continental margin, incorporating a "seascape" modeling component that includes the most determining control factors and the development rates of the morphosedimentary elements that make up the margin and the deep basin.The ROV transects were predefined from multibeam bathymetry in a seamount area in October 2007 during the ‘EUROLEON’ cruise on board R/V Hespérides, along the Iberian margin of the Valencia Trough. A video survey was performed with a ROV (Max Rover Mark II) equipped with two video cameras and with zoom (central and lateral view) and 6 light focus. The dive was conducted between 460 and 800 m depth. Videos were analyzed in real time onboard and observed animals were identified up to the possible minimum taxonomical level

TRYNITOP-1 Cruise (29HE20071116) carried out on the Research Vessel Hespérides in 2007, Trynitrop ('Trichodesmium and N2 fixation in the tropical Atlantic). The objective of the TRYNITROP project is to characterize the distribution and activity of Trichodesmium and other N2 fixatives, to determine the factors responsible for the control of N2 fixation as well as the contribution of these organisms to the fluxes of C and N mediated by the microbial plankton in the Phototic layer of the Tropical Atlantic. During the campaign, different experiments have been carried out

ESSASI-08 Cruise (29HE20080102) carried out on the Research Vessel Hespérides in 2008, SASSI (Synoptic Antarctic Shelf-Slope Interaction study): (1) quantify the export of the Weddell Sea waters to the Scottish Sea and Determine how these waters contribute to the modification of the Southern Border Antarctic Circumpolar Current; (2) determine the role played by the Talus Front in all these processes; and (3) trace the path that runs through the Talus Stream before diluting it in the Scottish Sea

VOLTEDEC Cruise (29HE20080302) carried out on the Research Vessel Hespérides in 2008, VOLTEDEC: Geodetic and thermometric monitoring of the volcanic activity at Deception Island (Antarctica): A telemetric seismic network will be deployed in order to be able to locate the source of possible earthquakes that occur in the area, and three stations for obtaining of measures of different variables meteorological and thermal conditions

BLOOM Cruise (29HE20080313) carried out on the Research Vessel Hespérides in 2008, Characterization of phytoplankton blooms on the continental shelf of Argentina (BLOOM). Complete the optical, biological and hydrographic characterization of the massive flowering of microalgae in the Patagonian coasts; understand the relationships between the conditions of the Malvinas Current and the generation of massive flowering; and develop and validate specific algorithms for the determination of pigments (responsible for red tides) from satellite

COPLA Cruise (29HE20080324) carried out on the Research Vessel Hespérides in 2007, Collaborative Cruise COPLA, National Commission of Outer Limits of the Continental Shelf Argentina (Comisión Nacional del Límite Exterior de la Plataforma Continental Argentina)

TRYNITOP-2 Cruise (29HE20080408) carried out on the Research Vessel Hespérides in 2008, Trynitrop ('Trichodesmium and N2 fixation in the tropical Atlantic). The objective of the TRYNITROP project is to characterize the distribution and activity of Trichodesmium and other N2 fixatives, to determine the factors responsible for the control of N2 fixation as well as the contribution of these organisms to the fluxes of C and N mediated by the microbial plankton in the Phototic layer of the Tropical Atlantic. The project will be carried out between latitudes 35º N and 35º S, in the longitude 028º W