Chinstrap Penguin (IMAGE) Woods Hole Oceanographic Institution Caption Like Adélie penguins, chinstrap penguins depend on krill as a major food source. Melting sea ice has made for easier access to the ocean in order to forage for food; however it has also brought declines in the availability of krill, which feed on algae living on the underside of ice. Credit Photo by Mike Polito, Woods Hole Oceanographic Institution Usage Restrictions For related news story License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.