This means that king penguins, which feed on fish and krill in this body of water, have to travel further to their feeding grounds, leaving their hungry chicks for longer.
Many of the new arrivals are still suffering from malnutrition and malnourishment after enduring often long and arduous journeys from famine-stricken Somalia.
Last week he was told he could either move into temporary accommodation - a hall on campus that would be closed down in December for refurbishment - or digs four miles out of the city.
Earlier this year, British explorer Pen Hadow and his team trekked for three months across the frozen Arctic Ocean, taking measurements and recording observations about the ice.