Fig. 1From: A potential phosphorous fertilizer for organic farming: recovery of phosphorous resources in the course of bioenergy production through anaerobic digestion of aquatic macrophytesOverview of the investigated area of Lake Goitzsche. Location of Lake Goitzsche and sub-basins Pouch (T1), Bärenhof (T2), Niemegk (T3), Mühlbeck (T4), and Döbern (T5) in the littoral area populated by E. nuttallii (area 70–75 m above mean sea level). Adapted from Rönicke et al. [24]Back to article page