Montgomery Canal Conservation Management Strategy (1.2MB PDF)

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Changes in combined predicted frequency of occurence of all marginal and emergent species on
the Montgomery Canal with increasing boat traffic
Total predicted frequency of occurrence (per 150m length)
10
8
6
4
2
Average Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
0
0
1,000 2,000 3,000 4,000 5,000 6,000 7,000
Boat passages per year
Changes in predicted frequency of occurence of all nationally scarce and uncommon aquatic species
on the Montgomery Canal with increasing boat traffic
Average total number of predicted frequency of ‘rare’ aquatic spp (per 150m length)
2
1.6
1.2
0.8
0.4
0
0
Average Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
1,000 2,000 3,000 4,000 5,000 6,000 7,000
Boat traffic (passages per year)
Figure 3.11. Eaton and Willby Research Predictions for aquatic and marginal plant species.
Research is based on vegetation data from 592 different canal sites, including the Montgomery Canal, and 14 environmental variables include annual
boat movements, Environment Agency water quality class, dredging and time since dredging, channel profile and geographical location. Analysis
follows similar systems to those used for river invertebrate prediction and classification system (RIVPACS), and predictive results have been tested
and found accurate on two separate canal locations. Results are based on a dredged canal profile, and represent a final stable state.
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