As expected there was a seasonal component to biomass but the trend was not consistent. Some sites increased in biomass between
July and August and some declined, while others did not change significantly. Watermilfoil biomass decreased in August, while coontail biomass increased, but the overall dominance of these two species was not affected.
Change of total plant
Biomass at two sites in
McPherson Cove, 1999
3 m depth
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