North Pacific Rosette (IMAGE) University of Washington Caption An oceanographic sampler, known as a rosette, during a 2013 cruise in the North Pacific. Each bottle contains water from different depths, which is how researchers collected samples of the vitamins at sea. Credit Kevin Simans/University of Washington Usage Restrictions With 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.