Fisheries

Climate change is moving fish polewards

Climate change is causing a tropicalisation of areas of our oceans that were previously temperate, and coral reef herbivores are starting to move south, say Australian and international researchers.

These fish are munching away at canopy-forming seaweeds, which in turn threatens the habitats of those living there first, the team says.

Additionally, by chewing up these habitat-forming seaweeds, the researchers say the poleward-journeying fish are leaving clouds of detritus and poo; feeding a different group of sea life and potentially disturbing the existing ecosystem.

Source: The University of Western Australia