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4 River and Lake Bed Module

4.3 River and Lake Bed Disturbances

Minimal adverse effects of sand and gravel extraction exceeding natural replenishment.
Improved water quality and aquatic habitats as a result of more stable river and lake beds.
A reduction in river and lake beds adversely affected by bank erosion and bed instability.
Increased plantings of indigenous plant species on the beds and banks of rivers and lakes.
Reduction in area and species of aquatic plant pests in the Region.
Increasing lengths of water bodies fenced to prevent livestock access to the beds of rivers and lakes.
Increased use of culverts, bridges and constructed crossings as an alternative to unrestricted livestock access to river and lake beds.