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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?
Management measures analysis and comparison
Table of content
- 1. Aim of the study
- 2. Work organisation
- 2a. Transnational Working Group Measures (TWG Measures)
- 2b. Regional Working Groups
- 3. Working steps and methods
- 3a. Measure collection and compilation of basic information
- 3b. Analysis approach development
- 3c. Consistency check of analysis results
- 3d. Develop concepts for cross estuary comparison of measures
- 3e. Deduce recommendations for estuary managers
- 4. Pilot projects
- 5. Results of measure collection and analysis
- 5a. Measure collection and basic info compilation
- 5b. Measure analysis
- 6. Specific issues of cross estuary comparison of measures
- 6a. Managed re-alignment measures (APA)
- 6b. Measures influencing sedimentation processes (HPA)
- 7. Summary and conclusions
- 7a. Procedure
- 7b. Results
- 8. Recommendations
- 9. References
- 10. Annex
- 10a. Composition of Regional Working Groups identifying main pressures and resulting deficits for the estuary zone using Environmenta
- 10b. Templates for evaluation of measures in terms of WFD aims: Identification of pressures and explanation of resulting deficits for
- 10c. Templates for evaluation of measures in terms of Natura 2000 aims: Conservation objectives for relevant operational areas based
- 10d. List of collected measure examples from Weser, Elbe, Humber and Scheldt with indication of development targets
- 10e. Assignment of collected measure examples from Weser, Elbe, Humber and Scheldt to measure categories
- 10f. Overview maps on measure titles and locations
- 10g. Assignment of collected measure examples from Weser, Elbe, Humber and Scheldt to measure types
10e. Assignment of collected measure examples from Weser, Elbe, Humber and Scheldt to measure categories
Table 52: List of measure examples collected, analysed and compared with indication of assigned measure category. Assignment was based on identification of main development targets per measure. Assignment was undertaken by members of the TWG Measures (expert judgment). Measures 1 and 13 are assigned to two different measure categories because respective development targets were weighted equally by TWG members.| No. | Estuary | Measure example | Measure Category | ||
| Hydrology/Morphology | Biology/Ecology | Physical/Chemical Quality | |||
| 01 | Elbe | Spadenlander Busch/Kreetsand | x | x | |
| 02 | Elbe | Underwater relocation area ‚Medemrinne Ost‘ | x | ||
| 03 | Elbe | Current deflection wall ´Köhlfleet´ | x | ||
| 04 | Elbe | Study on ´Investigation on freshwater current direction control at Bunthaus and possible impact on sedimentation patterns in the Port of Hamburg´ | x | ||
| 05 | Elbe | Sediment-Trap near Wedel | x | x | |
| 06 | Elbe | Compensation channel ‘Hahnöfer Nebenelbe’ | x | ||
| 07 | Elbe | Realignment Wrauster Bogen | x | ||
| 08 | Elbe | Compensation measure Hahnöfer Sand (2002) | x | ||
| 09 | Elbe | Spadenlander Spitze | x | ||
| 10 | Elbe | Settlement of reed at the harbour location´Haken´ | x | ||
| 11 | Elbe | Land treatment of dredged material including MEchanical Treatment and Dewatering of HArbour-sediments (METHA) | x | ||
| 12 | Elbe | Managing the ´Reiherstieg´ sluice to improve oxygen conditions | x | ||
| 13 | Scheldt | Lippenbroek - flood control area with controlled reduced tide (FCA-CRT) | 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 | ||
| 16 | Scheldt | Paddebeek wetland- small scale tidal wetland restoration in the freshwater zone of the Seascheldt | x | ||
| 17 | Scheldt | Paardenschor- small scale brackish tidal wetland restoration in the Seascheldt | x | ||
| 18 | Scheldt | Heusden LO -small scale tidal wetland restoration in the freshwater zone of the Seascheldt | x | ||
| 19 | Scheldt | Schelde pilot project 2: Relocation of dredged sediment to deep areas of the navigation channel | x | ||
| 20 | Scheldt | TIDE pilot: Relocation of dredged sediment to a shallow water area at the edge of the Walsoorden sandbar (2004) | x | ||
| 21 | Scheldt | TIDE pilot: Relocation of dredged sediment to a shallow water area at the edge of the Walsoorden sandbar (2006) | x | ||
| 22 | Scheldt | TIDE pilot: Relocation of dredged sediment to four shallow water areas at the edge of sandbars (2010) | x | ||
| 23 | Scheldt | Vispaaiplaats – Fish spawning pond | x | ||
| 24 | Weser | Tegeler Plate- Development of tidally influenced brackish water habitats | x | ||
| 25 | Weser | Shallow water area Rönnebecker Sand | x | ||
| 26 | Weser | Tidal habitat Vorder- und Hinterwerder | x | ||
| 27 | Weser | Shallow water area Kleinensieler Plate | x | ||
| 28 | Weser | Cappel-Süder-Neufeld | x | ||
| 29 | Weser | TIDE pilot: Restoration of a dike foreland in Werderland – Feasibility study | x | ||
| 30 | Humber | Alkborough Managed Realignment and flood storage – Creation of ~440 a of intertidal habitat | x | ||
| 31 | Humber | Paull Holme Strays Managed Realignment – creation of ~80 ha of intertidal habitat | x | ||
| 32 | Humber | Hydromotion MudBug – determine the density of ‘fluid’ mud to determine the depth of the navigable channel (1250 kg/m³) | x | ||
| 33 | Humber | Creation of ~13 ha of intertidal habitat at Chowder Ness | x | ||
| 34 | Humber | Creation of ~54 ha of intertidal habitat at Welwick | x | ||
| 35 | Humber | Kilnsea Wetlands | x | ||
| 36 | Humber | South Humber Gateway Roosting Mitigation | x | ||
| 37 | Humber | Training walls at Trent falls | x | ||
| 38 | Humber | Donna Nook and Skeffling | x | ||
| 39 | Humber | Turnstall Realignment | x | ||
10d. List of collected measure examples from Weser, Elbe, Humber and Scheldt with indication of development targets 10f. Overview maps on measure titles and locations
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?