 On Saturday the RRS Discovery left Southampton on the UKOSNAP expedition, which has been recovering a series of moorings this week that have been collecting data along the central Rockall Trough since July 2016. The moorings have a number of instruments and floats fastened to a long chain, which collect temperature, salinity and water velocity data throughout the water column. Given that this equipment had been in the water for the last ten months a number of marine organisms had colonised the floats, including cold-water corals (pictured above). Some of these organisms were sampled to investigate the abundance of microplastics ingested by species inhabiting the mid-waters in the North East Atlantic Ocean. To read the expedition blog click here, or follow UKOSNAP on twitter.  On Monday NOC scientists on board the STEMM-CCS expedition arrived in the southern Viking Graben (North Sea), where they carried out detailed mapping of a seismic chimney structure on the sea-floor. The purpose of the expedition is to investigate what role this chimney structure has for fluid migration. For geological carbon storage, subsurface chimney structures could have implications for the integrity of a storage reservoir, and therefore need careful investigation. To read the expedition blog click here, the project website is here. Alternatively you can follow STEMM-CCS on twitter here. | 
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