Hawkesbury-Nepean River Environmental Monitoring Program

pronounced (particularly in the edge habitat), with fewer macroinvertebrate taxa,
generally lower average SIGNAL-SG scores, and greater variability in those scores
over time 11 . The South Creek sites (NS081, NS23) in particular stand out in terms of
their low SIGNAL-SG scores.
Figure 6.7: Average SIGNAL-SG scores for edge habitats upstream (top) and
downstream (bottom) of Yarramundi; Hawkesbury-Nepean River
11
Although note the lack of data in more recent times for some of the downstream edge
habitat sites.
30 Hawkesbury Nepean River Environmental Monitoring Program: Final Technical Report