Marine food webs could be radically altered by heating of oceans, scientists warn

Temperature and CO2 changes reduce the numbers of some species and promote the growth of algae, University of Adelaide study finds

Heating of the world's oceans could radically reorganise marine food webs across the globe causing the numbers of some species to collapse while promoting the growth of algae, new research has warned.

Healthy marine food webs that look like a pyramid, with smaller numbers of larger predatory species at the top and more abundant smaller organisms at the bottom, could become bottom heavy".