BUSCADOR RECOLECTA

RADMED-ESMARES-0620 Cruise (29GD20190618) carried out on the Research Vessel García del Cid in 2019, The BIOGAPS project aims to study the chemical, ecophysiological and environmental factors that govern the production and recycling of trace volatiles in the sea water , and obtain information that allows to diagnose or predict its distribution in the shallow ocean. In this context, the BIOGAPS cruise will address the following issues: (a) How the concentrations of volatile vary (sulfur and halogen, plus isoprene) with respect to environmental factors and diversity, production and physiology of plankton? We can diagnose or numerically simulate said variability? (b) What role organic matter plays, and its interaction with light, in the Production and recycling of trace volatiles? (c) Enzymatic activities that produce volatiles, follow circadian cycles What can be observed by gene expression? (d) Is The Mediterranean an exceptional source of atmospheric iodine, with Implications for regional health policies?

EXPLOSEA-1 Cruise (29HE20190214) carried out on the Research Vessel Hespérides in 2019, The objective of the EXPLOSEA 1 cruise is the exploration and multidisciplinary research of submarine hydrothermal vents of low to high temperature in the Atlantic mid-ocean ridge, to the north of the Azores Islands and in the Azores Islands. The survey will address the exploration and characterizations of the venting sites including the water column, the sediments and rocks that host the hydrothermal activity and the associated mineralizations. This cruise is part of the “Exploration of submarine hydrothermal vents and associated mineral deposits and geobio-systems (EXPLOSEA)” project (CTM2016–75947-R)

FICARAM-XVIII Cruise (29HE20190406) carried out on the Research Vessel Hespérides in 2019, The general objective of the FICARAM-XVIII cruise is to assess the climate change monitoring the keys variables. Firstly, we will investigated the temporal evolution of the anthropogenic carbon storage and the ocean acidification, and evaluate the CO2 absorption capacity in the South Atlantic region and the Atlantic Equatorial zone. Secondly, the changes in the surface and in the main thermocline of thermohaline properties and circulation. Thirty, the changes in the biological and biogeochemical mechanisms that hinder total dissolved organic carbon (DOC) remineralisation in marine systems, taking a multidisciplinary perspective and applying many different approaches

ZEE-2019 Cruise (29HE20190523) carried out on the Research Vessel Hespérides in 2019, Study of the Spanish Economic Zone in the Canary Islands

POSEIDON Cruise (29SG20190227) carried out on the Research Vessel Sarmiento de Gamboa in 2019, POSEIDON "Persistence of Organic Substrates Explained In Diluted Oceanic eNvironments". Dissolved Organic Matter (DOM) is the second largest reservoir of organic carbon in the biosphere equivalent to all the living organisms or over 200 times all living marine organisms. Most of the oceanic DOM is stored in deep waters under 1,000 m locked away from the atmosphere. This makes the DOM pool so important for the regulation of the Earth’s climate that variations in the amount of DOM stored in the deep ocean have been linked to climate change in past geological times. This large amount of carbon seems to be unavailable to microbial decomposers, a fact that has puzzled scientists for decades. The classic explanation has been that DOM is composed of highly recalcitrant substances which cannot be degraded by microbes. However, despite decades of research, there is virtually no indication specific compounds accumulating in the DOM pool. Instead, the DOM seems to be composed of thousands to hundreds of thousands of different molecules, each of them in very low concentrations. Our team tested recently the alternative hypothesis that the compounds that make the bulk of the DOM pool in the deep ocean are not intrinsically recalcitrant but their utilization is simply limited by the extremely low concentrations of each individual molecule. This change of paradigm opens a new avenue for research and leads to new hypotheses that may help better understand the mechanisms behind one of the largest reservoirs of organic carbon in the biosphere. The aim of project POSEIDON is to address some of those new hypotheses though a combination of in situ measurements and experimental manipulations of naturally occurring DOM

EXPLOSEA-2 Cruise (29SG20190611) carried out on the Research Vessel Sarmiento de Gamboa in 2019, The objective of the EXPLOSEA 2 survey is to investigate hydrothermal underwater emissions in marine bottoms of the South Shetland Islands (Antarctica). These emissions are related to themagmatic / volcanic activity of the Bransfield retro-arch basin (Bransfield Strait, Island of Deception and Byers Peninsula) and the subduction zone north of the South Shetland Islands

ALSSOMAR Cruise (29SG20190830) carried out on the Research Vessel Sarmiento de Gamboa in 2019, Alboran Shelf-Slope cOupling processes and deep sediMent trAnsfeR: Source to sink approaches and implications for biodiversity (ALSSOMAR S2S) This research project intends to conduct a study of the continental margin and the adjacent slope, paying special attention to the storage capacity of sediments and their movement from the platform to the slope

INSIGHT_LEG2 Cruise (29SG20190930) carried out on the Research Vessel Sarmiento de Gamboa in 2019, “ImagiNg large SeismogenIc and tsunamiGenic structures of the Gulf of Cadiz with ultra-High resolution Technologies” (INSIGHT). The 2nd Leg of the INSIGHT cruise was aimed at imaging and characterizing, with the highest possible resolution, selected active seismogenic faults, large slope failures and investigate their relation with fluid seepage in the Gulf of Cadiz

RESNEP-2 Cruise (29SG20191107) carried out on the Research Vessel Sarmiento de Gamboa in 2019, The main goal of the RESNEP scientific project is to study the use of Marine Protected Areas (MPAs) as a tool for the recovery of the marine popultion of species of fishery interest. The target species is the Norway lobster (Nephrops norvegicus) , an iconic fishery along the Spanish Mediterranean coast but at present with populations in overexploited status. The main oceanographic operations are ROV dive and the use of traps for the biomass evaluation of the Nephrops norvegicus. The studied MPA (or no-take fishery zone) was established in September of 2017 so this oceanographic cruise is doing its research 2 years after the regular fishery activity was banned. RESNEP: (1) quantify abundance, Survival and dispersion of Nephrops norvegicus by capturing / recapturing captured crayfish and marked with individual coding; (2) determine whether Nephrops norvegicus are considered inside or outside the reserve zone: (3) quantify different parameters related to population status (biomass, abundance, individual size) within the reserve and in the control area by taking of different biological measures, (4) taking biological samples of all species that can be considered as potential predators of the Nephrops norvegicus and (5) characterize the state of the bottom of the areas where trawling has been regulated

MERS Cruise (29SG20191124) carried out on the Research Vessel Sarmiento de Gamboa in 2019, The cruise is part of a set of studies that are being carried out from the ICERS-UAB MERS research group in contribution to the project BLUEISLANDS financed within the framework of the European European INTERREG program Mediterranean. These studies aim to: [1] quantify the inflows of microplastics to the Mediterranean Sea, from the coastal areas of the Mediterranean, subject to different degrees of anthropic pressure; and [2] analyze how once at sea, these pollutants are distributed and potentially accumulated in different environmental matrices. In this context, the main purpose of the cruise is the collection of samples of different environmental matrices covering a transect with a population gradient marking: from the great urban center of the city of Barcelona, ​​to the natural site of the Ebro Delta. The samples are intended to characterize the flows of entry of microplastics and deposition of microplastics of the Catalan coast. For it, the characterization and distribution of contamination by microplastics in surface water (neuston nets), in the water column (CTD + rosette and multinet), the deposition and intake of microplastics by benthic macroinvertebrates (van Veen dredge / boxcorer) and potential accumulation in sediments (- multicorer - boxcorer). Additionally, as a contribution to our publication "River Deltas as hotspots of microplastic accumulation: the case study of the Ebro River (NW Mediterranean) ", is intended to sample the mouth of the Ebro Delta, to try to reconstruct the contribution of the Ebro river as an entry of microplastics into the sea Mediterranean, and provide more evidence of the importance of deltas as areas of accumulation for these contaminants