Water Biomes. The limiting factors in water biomes are:Amount of salt (salinity)Amount of dissolved oxygenSunlight . 2 Types of Water Biomes. FreshwaterRivers and StreamsLakes and PondsSaltwaterOceanEstuariesSeashores (tidal areas). Freshwater Biomes. Freshwater contains little or no salt, so it has a LOW salinity.Flowing freshwater = rivers and streamsStill Freshwater = lakes and ponds.