Is the bioproduction number a good index of the trophic state in Mediterranean wetlands?

Key-words: sediment, trophic state, wetlands, bioproduction number Eutrophication is one of the major problems affecting water quality of in-land waters. Therefore trophic state evaluation is essential for the conser-vation, the management and the application of possible future restoration measures. The main aim of this work was to assess the effect of different land uses in the drainage basins of the Mediterranean wetlands on the bioproduction number (BPN), an indicator of the wetland trophic state. For this, we selected seven wetlands with different areal extension of agri-cultural land in their catchment area. The data obtained from BPN wer