A problem on some canals are engine propellers, which had not been invented when many of the canals were built. The report concentrates largely on powered craft as non-motorised craft have minimal effect on wildlife, chairman John Edmonds told BB. It's suggested that some canals might need restrictions on craft types or numbers.

Key recommendations include ways in which navigation interests should consult wildlife bodies well in advance of undertaking any work to foster mutual understanding and prepare relevant action plans.

The report says boaters also need to 'be active partners... to ensure that navigational waterway interests are taken fully into account' when River Basin Management Plans are prepared. There are tasks suggested for AINA, development agencies, regional bodies, local authorities, voluntary sector organizations, wildlife NGOs, government, regulatory bodies and waterway related businesses.

The report includes ten canal case studies from across Britain.

Launching the report, Mr Edmonds said: 'The good news in our report is that the vast majority of inland waterways can be effectively managed to deliver aquatic wildlife benefits as well as sustainable navigation.' He observed consent is not one interest trying to manipulate another to agree.

Full copies of the report can be obtained from iwac.org.uk/reports