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5.4.2.      Case study: Indicator: Defragmentation of rivers

Source: Biodiversity Indicators, 2011.

The text box below illustrate progress in removing fish migration barriers along a 3000 km long priority network of rivers in Belgium.

 

This indicator shows the number of fish migration barriers that must be removed on a 3000 km long priority network of rivers in Belgium.

Analysis and Policy goal

In 1996, Belgium, The Netherlands and Luxemburg agreed to take all measures necessary to allow free fish migration through all hydrographic basins by 2010. A postponement to 2015 (90%) and 2021 (100%) is under preparation, synchronising the target with the European Water Framework Directive.

Trends and distance to target

By the end of 2009, 171 of the 789 fish migration barriers (22%) had been removed. Others are being processed at different administrative levels. Nevertheless, progress is still far behind schedule

Expectations

At the current speed of the mitigation of river fragmentation (fish migration barriers) the target will not be reached. With the current policy only 20% of the fish barriers will be solved till 2010.

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