Amphipods (IMAGE) Census of Marine Life Caption This is a photo of sand fleas (amphipod crustaceans) under nearshore ice in the Beaufort Sea. Ice-associated amphipods are a major food source for Arctic cod, in turn the main prey for ice seals. Credit Photo credit: Shawn Harper, University of Alaska Fairbanks / COML Usage Restrictions The image may be used only for reporting on this story and will always appear with photographer credit. 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.