Despite New Zealanders’ close connection with the oceans, very few will have heard of “temperate mesophotic ecosystems” (TMEs). Even fewer will appreciate their importance for coastal fisheries, and possibly climate change mitigation.
TMEs typically occur at depths of between 30 and 150 metres – the twilight zone of our oceans, where little sunlight remains. But science is beginning to shed light on these remarkable ecosystems, and the need to protect them.
While there has been plenty of research on the deep oceans (greater than 200m) and the shallow seas (less than 30m), TMEs have received surprisingly little attention. They have only been recognised as distinct ecosystems in the past 15 years.