Sea's Changing Seasons Revealed

The deep sea is often thought of as a tranquil, benign environment - but a study led by a scientist at The Australian National University shows that the ocean depths are an extremely dynamic environment that may even experience 'seasons'. Dr Michael Ellwood headed up a research team that discovered seasonal fluctuations in the carbon levels of certain rock sponges that grow at depths greater than 500 metres in the South Pacific. The team's findings are published in the journal Limnology and Oceanography...