Collect samples of seawater from the 500ml volume, collected from lakes and coastal areas. The depth of the sampling point is between 2-3 meters of water samples were collected into the Lugol iodine it in immediately, operating six samples were collected in a volume of 50 ml for analysis of benthic dinoflagellates on macrophytes.
Algae and sea grass in the area were collected in a plastic bag and shake violently before they can be filtered with a mesh size of 125 and 20 micron samples taken on 20 micron sieve. To put a container and stored on iodine Lugol.