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UK ECN site. Loch Leven is the largest, shallow, relatively nutrient-rich, lowland loch (lake) in Scotland. It lies at an altitude of 107m. It has a surface area of 13.3km2 and has a mean depth of 3.9m. The Loch Leven catchment covers 145 km2, consisting mainly of arable crops and improved pasture. Loch Leven is particularly renowned for its large numbers of migratory, breeding and overwintering waterfowl and its world famous brown trout fishery. Although the overall quality of the site is good, the loch has suffered from periodic cyanobacterial (‘blue-green algal’) blooms for many years. These have occurred, largely, as a result of substantial amounts of phosphorus entering the loch, combined with a relatively low flushing rate and a favourable light-climate.

UK ECN site. Bradgate Brook (a small stream) is located in the Charnwood Forest area of Leicestershire important for its precambrian rocks (granite). The stream flows through the ancient parkland of Bradgate Park and into Cropston Reservoir. The park is managed as a deer park, has never been agriculturally "improved" and is designated an SSSI. However it was bequeathed to the people of Leicester for their enjoyment and pressures on the site relate to public access. There are no discharges to or abstractions from the brook which supports an invertebrate community of regional importance, including a population of native crayfish.

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Donghu Experimental Station for Lake Ecosystem (Donghu Station) located in west of Donghu Lake, Wuhan, China.

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