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Freshwater Ecology
This is a comprehensive and detailed site providing information on aquatic macroinvertebrates. The emphasis is on biomonitoring of water quality through quantitative assessment of numbers and types of small aquatic organisms.
Sophia Learning
Sophia: Freshwater Biomes: Lesson 2
This lesson will provide an understanding of the characteristics and role of freshwater biomes, and its effect on living things. It is 2 of 4 in the series titled "Freshwater Biomes."