Meanig+of+Data

__Tyler Young:__ On our class' field trip to cloe lake, I was in the group of finding, catching, counting and organizing, and then releasing organisms. We found nine different organisms. These organisms were the mayfly, stonefly, crayfish, caddisfly, dragonfly nymph, beetle larva, watermite, midge larve, and cranefly. We caught these organisms by using the kick method. This method is when a net is placed in a stream and then the stream bottom is kicked to get any organisms in the water onto the net, the net is then taken to land where the organisms are classified and organized. When counted, the number of organisms could tell us how prone they are to pollution in the water. Less than 10 organisms told us that the organisms couldn't survive in virtually any pollution to the water, more than 10 and less than 100 told us that the organisms were tolerant to some pollution in the water, and more than 100 told us that the organisms could live in a very polluted water environment. We found that the mayfly, stonefly, and caddislfy were more than 10 but less than 100. We found the crayfish, dragonfly nymph, beetle larva, watermite, midge larva, and cranefly to be less than 10. This means that the water system was allowing more mayflies, stonflies, and caddiflies than the crafish, dargonfly nymphs, beetle larvas, watemrites, midge larvas, and cranflies. It is allowing all of these organisms to live, but some in a bigger population than others depending on the tolerance for pollution of the water that, that particular species has.