After the long dry spell, the lagoon was crystal clear and full of life. But with the return of the rains, something else has returned too – the brown, filamentous mats of Lyngbya. It’s not seaweed, it’s a cyanobacterium, and when it takes hold it smothers coral and rubble alike. The reef’s way of showing us that every drop of water, from tank to tide, is connected.
Read MoreFigure 1: A clear lagoon and thriving corals – this is what the reef looks like when the water runs clean and the balance holds steady, taken on 6 November 2025, out where the tide and currents flush away the nutrients and any diseases. See the map below for where this one was taken (1).
