The effect of salinity after three weeks of exposure
on species richness was also signifi cant for
the KC-road sediment (F (2,6) = 14.71, p = 0.0049)
(Fig. 3). However, Tukey’spost test showed the
difference was significant only for treatment
pairs 300 mg dm-3 vs 5000 mg dm-3 and 5000 vs
15 000 mg dm-3 (p = 0.014 and p = 0.05 respectively)
but not for 300 vs 15 000 mg L-1 (F(2,6) = 14.71,
p = 0.645) treatment pairs. Zooplankton speciesthat
emerged from KC-Road sediments were similar in
all treatments and sampling days combined; the
highest number emerged from the 5000 mg dm-3
treatment by day 14 (n = 7) (Table V).