2006 05 Severn Estuary Perspective - Roger Wade, Environment Agency
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Transcript of 2006 05 Severn Estuary Perspective - Roger Wade, Environment Agency
The Severn Estuary and Climate Change
1st Severn Estuary Forum 8th June 2006.Dr Roger Wade
Environment Agency Wales.
My talk…...• Direct Impacts of climate change
– Flood Risk Management/ Coastal erosion– Habitats– Water resources
• Indirect impacts– Renewable energy resource– Aggregates (new build)– Leisure.
fisheriesPre-June (Spring) salmon rod catch, River Wye 1950-2004
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1000
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1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2001
No.
of s
alm
on
What is in or out?• Ten year trends %• Dunlin -23• Bewick Swan -75• Whooper Swan 22• Shellduck -59• Redshank -1• Gadwall 82
Water resources- Lower Summer flows?
• Salt ingress• Dredging costs• Oxygen depletion• Salmon Migration
Aggregates dredging• Domestic energy reduction =
new houses= aggregates• Welsh demand largely from
Bristol Channel• Possible erosion to beaches
and cliffs• Further pressure inland