Marine Particle (IMAGE) Max Planck Institute for Marine Microbiology Caption Small marine 'snowflakes' are very important for the nutrient balance of the oceans. The particle shown here is highly magnified -- in reality small particles are only about the size of a hair and thus barely visible. Credit Max Planck Institute for Marine Microbiology/C. Karthaeuser and S. Ahmerkamp Usage Restrictions Only to be used in the context of this publication and citing the correct copyright 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.