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The effectiveness of fish removal as a tool for biomanipulation and restoration was studied from 1993 to 1997 in shallow Lake Pohjalampi (North Karelia, eastern Finland). The external nutrient loading into this lake was low and nearly stable throughout the study period. During a period of 5 years, a total of > 200 kg ha-1of fish, mainly roach and bream, were caught and thus the total fish biomass...
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