|1-.Structural and functional elements in the stream.. |
2-. Arrival and dynamics of nutrients and organic materials
3.- Flux and arrival of particulate organic matter.
4.- Structure and function of biofilms
5.- Metabolism, in relation to the arrival of materials and its use by heterotrophs.
1-. Collection of hydrological, chemical and physiographical data in a stream.
2.- Activities of primary producers and heterotrophs in a stream. Laboratory and field approaches.