Latest newss from Coquetdale Wildlife Trust
Steve Lowe gave the Coquetdale branch of the Wildlife Trust a most interesting talk on River Work Challenges for Northumberland.
Steve has worked for 40 years on otter and river management, and explained that as the rural areas were linked to the urban areas by the rivers, both contributed to the problems found in the water.
The water body categorises the rivers and waterways according to how clean the water is along the whole stretch of river. There is one bad watercourse outside Morpeth, but otherwise Northumberland has a range of different water qualities in its rivers.
There are many different groups of people who contribute to the problems found, including the landowners, anglers, local authorities, litter and polluters, such as silt and pesticides.
The value of fishing on the River Tyne is £16 million and supports 570 jobs so it is important to keep the water clean.
To help improve the rivers there is tree management, fencing to keep stock from trampling down the river banks, flow deflectors and the use of spawning substrate as the salmon often can’t spawn due to the silt.
Willow spiralling has been used up the Beamish to help divert the silt through the living fence when the river floods. It has been successful, but is expensive to make.
Another increasingly large problem has been the introduction of signal crayfish to the UK as they are destroying our native white clawed crayfish due to a virus they harbour, which only kills our native species, their large size and ability to eat everything. The ARC project is trying to reintroduce our native crayfish back into rivers.
Eels are rarely seen in our rivers, but European eels used to breed at sea, then migrate up the rivers, before returning to spawn in the sea six to 20 years later. Their numbers have probably declined due to over-fishing and loss of habitat.
The Living Waterways project from 2012-15 focused on reducing flood risk and checking on water pollution.
Otters are in 85 per cent of our watercourses, whilst water voles are nearly extinct. There is a project in Kielder to reintroduce them there.
Steve thought that European beavers would be a helpful solution to change landscapes and slow water down as they are small animals and build small dams.
The next meeting will be on Monday, April 3, at 7.30pm, when Phil Hanmer will give an illustrated talk on Newcastle To The Limpopo, followed by the AGM.