By Mike Forty, Project Officer.
Restoring connectivity in rivers One of the big challenges we face in restoring freshwater ecosystems is re-connecting disjointed sections of streams which have been isolated by construction of in-stream structures. These structures can have profound effects on streams, acting as a barrier reducing, delaying, or altogether stopping fish or invertebrate movements, and disturbing geomorphological processes. This barrier effect is arguably greatest when rearing and spawning habitats of migratory fish
Soon after flowing under Mitton Bridge, the River Ribble grows considerably where it is joined by the Rivers Hodder and Calder. The ‘Big Ribble’ continues through fertile pastoral land with a large amount of dairy farming and becomes tidal in Preston, Lancashire’s administrative centre. The Ribble Estuary flows past the fertile Fylde plain on its way to the Irish Sea, where the
The Upper Ribble catchment includes the source of the River Ribble at the confluence of Gayle Beck and Cam Beck near the famous viaduct at Ribblehead, in the shadow of the Yorkshire Dales three peaks in the National Park area above Horton-in-Ribblesdale. This area is lightly populated and the main use of land is for the rearing of sheep. As the Ribble flows through
The Hodder catchment includes some of the most attractive landscapes within the Ribble catchment. The whole area is within the designated Forest of Bowland Area of Outstanding Natural Beauty and the uplands are in the Bowland Fells SSSI. The catchment has a highly valued fishery and is popular with anglers. Stocks Reservoir and other upland river intakes, provide a vital part of the North West’s
The Calder catchment includes the main River Calder which originates from the moorlands surrounding Nelson, Burnley, Colne and Accrington, before joining the Ribble below Whalley. All the tributaries that flow into the River Calder such as Pendle Water, Colne Water and Hyndburn Brook are also in this area. Historically this area was heavily industrialised (mill workings, paper production and so on) and much of the