BUSCADOR RECOLECTA

The item is made of 2 files, of which 1 is the dataset and the other include a small description of the measured variables.-- Dataset contributed to the Project Carbochange, This dataset gathers discrete measurements of CO2 (pH and alkalinity) and hydrographic variables (salinity, temperature, dissolved oxygen, nitrate, phosphate and silicate) obtained during the cruise OVIDE 2008 carried out from 6 June to 11 July 2008. pH was measured spectrophotometrically following the Clayton and Byrne (1993). This method consists on adding a dye solution to the seawater sample, so that the ratio between two absorbances at two different wavelengths is proportional to the sample pH. Alkalinity was measured using an automatic potentiometric titrator Titrando 809 Metrohm, with a Metrohm 6.0232.100 combination glass electrode and a Pt-1000 probe for temperature measurement following the methodology given by Pérez and Fraga (1987). Dissolved oxygen was analyzed following the widely applied Winkler method. Determinations of nitrate, phosphate and silicate were carried out following methods described by Hansen and Grassoff (1983) Salinity and Temperature were recorded with a CTD probe, French OVIDE Project supported by CNRS, and CARBOOCEAN (511176GOCE), No

DIVA-ARTABRIA-II Cruise (29HE20080915) carried out on the Research Vessel Hespérides in 2008, Latitudinal diversity in deep bottoms of the Atlantic Ocean (DIVA). DIVA-Artabria II. The general and main objective of the DIVA-Artabria II campaign (2008) It includes the study of biodiversity in deep seafloor, in order to describe biodiversity, to contribute to a real estimate of the number of species that live in the bottoms of Galicia and how they are distributed according to the depth and type of substrate

ASELVA Cruise (29SG20080707) carried out on the Research Vessel Sarmiento de Gamboa in 2008, The objective of the cruise is to make a first multidisciplinary approach to the structure and basic functioning of the ecosystem of the carbonated crust bottoms of SELVA (NW Galicia). Multidisciplinary cruise : geosciences, physical oceanography, plankton, larval biology trophic ecology, benthonic biodiversity and fisheries