Complex sentence: For example the higher ratio of periphytic (type of platonic diatom), the higher the vegetation concentration and shallower the water, but the higher the ratio of scaled chrysophytes in a sample means the environment of that organism is more open water.
Split into simpler sentences: For example the higher ratio of periphytic (type of platonic diatom), the higher the vegetation concentration and shallower the water. The higher the ratio of scaled chrysophytes in a sample means the environment of that organism is more open water.