This is how we scored the creek by looking at bugs. MAGIC=http://!! not really. There is a sheet that tells you which bugs are which, and how sensitive (tolerant) they are. The sensitivest ones like (grrr) mayflies score the highest, 4 points. the score goes down for the more tolerant bugs. the most tolerant ones are like leeches and worms and stuff. ew. ew.ew.ew.
anyway, then you check off what kinds of bugs you found. on the sheet where you check them off, the bugs are divided up into the intolerant and toleranter groups that i explained. then, you add up all the scores for all the different types of bugs. you dont say, like, "well i found 6 mayflies, so the score for mayflies is times 6!"
you dont really care how many of a type of bug you found, just that you found it.so,then you add up the score and you get the number! the end.