Alan Deidun will give a lecture entitled ‘The submerged living assets of the Maltese islands’ on Thursday at 6.30pm at Din l-Art Ħelwa’s premises, 133, Melita Street, Valletta. He will give an overview of the Mediterranean’s marine biodiversity hotspots, the most frequent species found in Maltese waters and the main challenges for their conservation. Photo shows a Hacelia genus of starfish.