ungehindert direkt auf die Küste und die davor liegenden Tauchstellen ein, so dass nach starkem Wind jeweils ein Fenster von mindestens 1 – 2 Tagen abgewartet werden muss, um dort wieder tauchen zu können. Da [...] which also includes the land based FerryBox (4H-Jena engineering). Weather conditions during the stay were quite well with low wind and a water temperature of 2.5 °C. However, the sun did not come above the [...] velocity, pH, and other parameters. Also, from discrepancies between oxygen and CO 2 fluxes we can assess non-biological CO 2 release, e.g. by seepage or volcanism. To improve these pH measurements we also