Evidence for antifouling biocides as one of the limiting factors for the recovery of macrophyte communities in lakes of Schleswig-Holstein

Environmental Sciences Europe

Table 1 Investigated lakes, their ecological states and most important variables describing their dimensions

Lake	Macrophyte state^a	Phytoplankton state^a	Surface area (km²)	Catchment area (km²)	Water residence time (a)
Lake Brahm	3	3	1.1	58.9	0.3
Lake Diek	4	2	3.8	165.6	1.0
Lake Grebiner	3	–	0.3	1.0	7.7
Lake Lang	5	2	1.4	31.7	0.8
Lake Sankelmarker	5	2	0.6	18.8	0.6
Lake Selenter	1	2	21.2	60.0	15.4
Lake Suhrer	2	2	1.4	4.1	8.8
Lake Trammer	4	2	1.6	4.2	13.8

^aRanking according to WFD ranging from 1 (very good) to 5 (bad); data were kindly provided by the State Office for Agriculture, Environment and Rural Areas (LLUR)