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The Interreg IVB North Sea Region Programme


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Management measures analysis and comparison

Authors:

by S. Saathoff, J. Knüppel, S. Manson & A. Boerema



10g. Assignment of collected measure examples from Weser, Elbe, Humber and Scheldt to measure types

Table 53: Assignment of measures of measure category ‘Biology/Ecology’ to one or more measure type(s); assignment was undertaken by members of the TWG measures (expert judgment)
No. Estuary Measure example Salt marsh development by building groynes Restoration of not embanked foreland areas Shallow water zone construction Revitalisation or construction of side branch systems Opening of summer dikes Relocation of main dikes Development of site specific conditions in favour of sublitoral habitats and species Development of brackish water habitats at sluices Reestablishment of species Deconstruction or alteration of bank reinforcements Deconstruction or alteration of other constructions  (island, port, fairway) Measures to improve the passability of sluices: modified sluice management Measures to improve the passability of sluices: technical measures
01 Elbe Spadenlander Busch/Kreetsand     x     x x            
06 Elbe Compensation channel ‘Hahnöfer Nebenelbe’     x x     x            
07 Elbe Realignment Wrauster Bogen   x x x   x x            
08 Elbe Compensation measure Hahnöfer Sand (2002)     x     x x            
09 Elbe Spadenlander Spitze     x     x x   x        
10 Elbe Settlement of reed at the harbour location´Haken´   x         x   x        
13 Scheldt Lippenbroek - flood control area with controlled reduced tide (FCA-CRT)   x     x             x  
14 Scheldt Groynes at Waarde x                        
15 Scheldt Ketenisse wetland - small scale tidal wetland restoration in the brackish part of the estuary   x     x                
16 Scheldt Paddebeek wetland- small scale tidal wetland restoration in the freshwater zone of the Seascheldt   x       x              
17 Scheldt Paardenschor- small scale brackish tidal wetland restoration in the Seascheldt   x     x                
18 Scheldt Heusden LO -small scale tidal wetland restoration in the freshwater zone of the Seascheldt   x       x              
23 Scheldt Vispaaiplaats – Fish spawning pond     x       x            
24 Weser Tegeler Plate- Development of tidally influenced brackish water habitats                          
25 Weser Shallow water area Rönnebecker Sand                          
26 Weser Tidal habitat Vorder- und Hinterwerder                          
27 Weser Shallow water area Kleinensieler Plate                          
28 Weser Cappel-Süder-Neufeld                          
29 Weser TIDE pilot: Restoration of a dike foreland in Werderland – Feasibility study                          
30 Humber Alkborough Managed Realignment and flood storage – Creation of ~440 a of intertidal habitat   x         x   x x      
31 Humber Paull Holme Strays Managed Realignment – creation of ~80 ha of intertidal habitat   x x       x   x x      
33 Humber Creation of ~13 ha of intertidal habitat at Chowder Ness   x x       x     x      
34 Humber Creation of ~54 ha of intertidal habitat at Welwick   x x x     x     x      
35 Humber Kilnsea Wetlands   x x       x x x x      
36 Humber South Humber Gateway Roosting Mitigation                 x        
38 Humber Donna Nook and Skeffling             x   x x      
39 Humber Turnstall Realignment             x   x x      
No. Estuary Measure example Salt marsh development by building groynes Restoration of not embanked foreland areas Shallow water zone construction Revitalisation or construction of side branch systems Opening of summer dikes Relocation of main dikes Development of site specific conditions in favour of sublitoral habitats and species Development of brackish water habitats at sluices Reestablishment of species Deconstruction or alteration of bank reinforcements Deconstruction or alteration of other constructions  (island, port, fairway) Measures to improve the passability of sluices: modified sluice management Measures to improve the passability of sluices: technical measures



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Important to know

Reports / Measures / Tools

Report: Management measures analysis and comparison


Management issues

How and by which management measures can tidal amplification be reduced?
How can public acceptance for management actions be increased?
How can the Ecosystem Services Approach be used to support management decisions?
How can we assure accessibility to an inland estuarine port without affecting the habitats and safety against flooding?
How can we prevent excessive degradation or loss of tidal marshes?
How does habitat management affect the supply of ecosystem services?
What are the key areas of conflicts or synergies in TIDE estuaries?
What are the restoration opportunities for side branch systems and river banks (e.g. left side branch Weser)?
What factors determine the distribution of suspended sediments in an estuary?
What measures are successful for the dissipation of tidal energy?
What monitoring is required to support and assess management decisions?
What parameters should be used to define and evaluate measure targets?
What tool is available to help manage multiple users of a resource in an integrated way (i.e. achieving more holistic management)?
Which aspects do I have to take into account in order to make a measure a success?
Which measures are suitable to achieve specific ecological targets?
Which measures are suitable to achieve specific morphological and hydrological targets?
Which measures are suitable to identify, protect or develop valuable submerged habitats e.g. mussel beds and Sabellaria reefs?
Which measures are suitable to improve the physical characteristics and chemical water quality?
Which measures are suitable to provide ecosystem services and benefits?
Which synergistic effects and conflicts can be expected by planning and implementing a certain measure?
“Working with nature”: What are the opportunities for sediment management in estuaries?