Gathering Water and eDNA Samples (IMAGE) Terry Collins Assoc Caption Message in a bottle: DNA in 1 litre of seawater = a trawl sweep of 66 million litres, enough to fill a sports stadium to top of goalposts. A proposed "Great American Fish Count," involving citizen scientists collecting waters samples, could set stage for 2nd global Census of Marine Life during the upcoming UN Oceans Decade. Here Monmouth University Assistant Professor of Biology Keith Dunton gathers eDNA in water samples. Credit Monmouth University Urban Coast Institute Usage Restrictions None 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.