VELS - Allowing marine studies to come to life
What I learned at the courses of 2005
This system is much easier for beginners and when time is short, either to train students or when you have limited time at a reef. The program comes with a results spread sheet that can give students instant feedback to whether the reef they have looked at is healthy or not.
A healthy reef would be expected to have a majority of corals with scores over 3, a few corals with scores of 2 and a very small number of corals with a colour score of 1. The distribution graph would be similar to the graph below.
Coral Health Chart surveys on Heron, Green
and Lizard Island during July 2002