WaterSubject

Floodplains include some of the most productive habitats in the world and play a key role in nutrient retention and organic matter dynamics of riverine landscapes. The complex and dynamic array of aquatic, amphibious and terrestrial landscape elements; reates a considerable temporal and spatial heterogeneity, enables high biodiversity and increases hydrological retention.Lateral exchange processes between the main channel and slack water areas are crucial for the biogeochemical cycling in riverine landscapes. In functionally intact systems, the pulsing of river discharge determines the ... Read More

The significance of nutrient release by fish for plankton communities is uncertain; many authors have suggested that nutrient release by fish is important whereas others suggest it is a small Some of this difference in opinion arises from whether nutrients released by fish are compared to external loading or internal cycling. While nutrient regeneration by fish may be large relative to external sources of nutrients to lake, fish are an internal source of nutrients and internal cycling of nutrients (e.g. planktonic regeneration) ... Read More