Posted: 28/11/2016 at 19:32
Coral larvae travel huge distances on ocean currents. Those growing in warmer areas, some will carry to cold areas and then die. If the new area is too warm for the old coral , it may be just right for a settlement of the type that can cope with higher temperatures. Nature abhors a vacuum and will find ways to fill it.
I am more worried about the problems caused by the nitrates from treating sugar cane that runs off into the inner parts of the G B R . Building work in Sharm el Sheik has devastated the coral because the bulldozers have dumped sand and rubbish on the reef. In Indonesia and Malaysia, rubbish is dumped at sea and there is a huge amount of damage being caused to reefs and islands in the Indian ocean where the currents carry it. Man is causing all this damage, a changing climate may be accelerating El Nino events, The pacific ring of fire (Volcanic) is very active at the moment, spewing vast amounts of sulphur dioxide into the atmosphere. Have we caused that? Could we stop it? could King Canute hold back the tide. ?