The occurrence of two new plankton diatom populations in the English Lake District: Aulacoseira islandica

Samples of planktonic algae from major lakes in the English Lake District have been investigated over many years as part of a long-term monitoring programme set up by the Freshwater Biological Association and continued by the Institute For Ecology. Some lakes have been sampled regularly for long periods, others less frequently or only occasionally. Windermere north and south basins, and the neighbouring lakes Blelham Tarn and Esthwaite Water, have been under observation, mostly on a weekly basis, since the programme began in 1945. During this time diatoms have played a significant role in the population dynamics of these lakes

The occurrence of two new plankton diatom populations in the English Lake District: Aulacoseira islandica

Samples of planktonic algae from major lakes in the English Lake Districthave been investigated over many years as part of a long-termmonitoring programme set up by the FBA and continued by the IFE.Some lakes have been sampled regularly for long periods, others lessfrequently or only occasionally. Windermere north and south basins, andthe neighbouring lakes Blelham Tarn and Esthwaite Water, have beenunder observation, mostly on a weekly basis, since the programmebegan in 1945. During this time diatoms have played a significant role inthe population dynamics of these lakes (Lund 1954 and unpublisheddata; Tailing et al. 1986)