For my ecology mini project we studied the freshwater snails in the animas high school portion of lighter creek. The snails we studied were small, brown and typically stuck to the river bed. The snails feed off algae so they thrived in slow, murky parts of the river. Also, the tend to live in the slower parts of the river because there's less risk of the snails losing their grip. Snails also feed on dead plant matter. So, the snails tend to populate areas with fallen leaves or aquatic plants. The snail also like moderate temperature water so they tend to populate area with a few hours of direct sunlight. Snails obviously prefer not to be disturbed so they tend to be in areas in the river. This means they are more likely to thrive in rocky or less accessible areas. In conclusion, snails will tend to populate areas with a decent amount of direct sunlight, around areas were rocks block the current and with algae/aquatic plants.