7)T. acutirostris took 26 days for almost
all adults to disappear from an apparently healthy population and 101 days
from the first decrease in numbers to where there were no adults left
on the stream
8)L. rheocola took less than 50 days
for its population to crash to low numbers. It was still persisting in low numbers
in August 1994
9)L. genimaculata did not show any clear
trend of decline. However, individuals were found that seems anaemic and showed
signs of easy hemorrhaging in the joints and one animal was found with swollen hind
legs.