The Zebra Mussel - Dynamic Modeling of Diseases and Pests - page 156

Fig. 10.3

LENGTH 2

LENGTH 1 LENGTH 3

LENGTH 4

JUVENILE ADULT 2

ADULT 1

ADULT 3

FILTER 1

FILTER 2

FILTER 4

FILTER 3

LAKE TURNOVER

LAKE VOLUME LAKE TURNOVER

DAYS PER TURNOVER

Fig. 10.4

juvenile population, and shell length grows each year as a function of the previous
year's length.
The amount of water filtered by each cohort is calculated by multiplying the
individual filtration rates times the population of each cohort. Daily lake turnover
is the sum of the daily filtration volumes of each cohort divided by the total lake
volume. In addition, the number of days per complete lake turnover is calculated by
dividing the daily lake turnover into one complete turn.