- Oligotrophic lake: Physical environment - temperate lakes undergo semiannual mixing of water, tropical lowland lakes have year-round mixing of water; Chemical environment - nutrient-poor and oxygen-rich, not much decomposable organic matter in bottom sediment; Geologic features - less surface area relative to depth compared to eutrophic lake.
- Eutrophic lake: Physical environment - depth causes light stratification; Chemical environment - nutrient-rich and oxygen-poor at bottom in summer/winter; Geologic features - large surface area, but not deep.
- Wetlands: Physical environment - habitat inundated by water at least sometimes, supports plants adapted to water-saturated soils; Chemical environment - nutrient-rich and often oxygen-poor, high capacity to filter dissolved nutrients and chemicals; Geologic features - basin wetlands in shallow basins and filled-in lakes/ponds, riverine wetlands.
Parent Tip: Review the logic above to help your child master the concept of aquatic biomes worksheet.
