NEW: Annual Report - George Mason University

104
Copepod Nauplii (#/L)
1000.0
100.0
10.0
1.0
Station 7: All Months
1985 1990 1995 2000 2005
YEAR
Copepod nauplii, the
immature stages of copepods,
continued their steady
increase (Figure 144). Trend
line values reached 70/L in
2003 well above the initial
level of 10/L observed in
1990. A strong linear increase
was observed over the study
period (Table 12).
Figure 144. Long term trend in Copepod Nauplii. Station 7. Gunston Cove.
Copepod Nauplii (#/L)
1000.0
100.0
10.0
1.0
Station 9: All Months
1985 1990 1995 2000 2005
YEAR
In the river mainstem,
copepod nauplii also
continued to increase albeit at
a slower rate (Figure 144).
The 2003 LOWESS trend line
value was 80/L, up from an
initial value of 10/L in 1990.
There was good evidence for
a significant linear increase in
nauplii over the study period
(Table 12).
Figure 144. Long term trend in Copepod Nauplii. Station 9. River mainstem.