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Proceedings

Science for Nature Conservation and Management: the Wadden Sea Ecosystem and EU Directives.

Marencic, H., Eskildsen, K., Farke, H. and Hedtkamp, S., (Eds.), 2010. Science for Nature Conservation and Management: the Wadden Sea Ecosystem and EU Directives.  Proceedings of the 12th International Scientific Wadden Sea Symposium in Wilhelmshaven, Germany, 30 March - 3 April 2009. Wadden Sea Ecosystem No. 26. Common Wadden Sea Secretariat, Wilhelmshaven, Germany.

Proceedings / Press information / Recommendations / Daily symposium Blog
Program / Flyer (pdf) / Poster (pdf A3)

Download Proceedings (215 pages, 12 MB)

Introduction  (p 1- 12)
Foreword
Recommendations from the 12th International Scientific Wadden Sea Symposium

Science and Policy (p 13 - 28)

The relevance of science for management and policy: The Korean experience  13
C.H. Koh, B.O. Kwon, G.H. Yuk, J.S. Ryu, W.K. Chang, J.S. Khim

Marine and coastal management in West Africa: partnerships, progress, and prospects   19
Paul Siegel

The Guiding Principle for the Wadden Sea: Advantages of a dynamic approach in a changing world    23
Hans-Ulrich Rösner

Ecosystem, Species Trends and Assessment (p 29 - 74)

Decreasing eutrophication of the Wadden Sea: how low should we go?     29
J.E.E. van Beusekom

Salt marshes: applied long-term monitoring   35
K.S. Dijkema , A.S. Kers, W.E. van Duin

Evaluation of blue mussel beds in the North-Frisian Wadden Sea - according to the EU Water
Framework Directive and EU Habitats Directive      41
Heike Büttger, Torsten Berg, Georg Nehls

Trends in numbers and distribution of breeding birds in the Wadden Sea     47
Kees Koffijberg, Lieuwe Dijksen, Bernd Hälterlein, Stefan Schrader, Karsten Laursen, Petra Potel

Assessing the status of Wadden Sea fish     53
Z. Jager, L.J. Bolle, A. Dänhardt, B. Diederichs, G. Lüerßen, H. Marencic, T. Neudecker, J. Scholle, R. Vorberg

Changes of abundance and distribution of young plaice (Pleuronectes platessa) in the Schleswig-Holstein Wadden Sea (Germany) in the last 20 years        65
Katharina Schmidt, Thomas Neudecker

What to do with alien species in the Wadden Sea?    68
Karsten Reise

Habitat Definition and Monitoring (p 75 - 104)

Applied vegetation mapping of large-scale areas based on high resolution aerial photographs - a combined method of remote sensing, GIS and near comprehensive field verification         75
Jörg Petersen, Otto Dassau, Hans-Peter Dauck, Nicole Janinhoff

Uncertainty in monitoring salt-marsh accretion on various spatial scales       81
A.V. de Groot, J.P. Bakker, R.M. Veeneklaas, D.P.J. Kuijper

Remote sensing of the Wadden Sea – a tool supporting TMAP and WFD monitoring        87
Kerstin Stelzer, Carsten Brockmann, Jasmin Geißler

Monitoring for the Habitats Directive and the importance of terrestrial invertebrates          93
Oliver-D. Finch, Rolf Niedringhaus

Winter temperature is more important than summer chlorophyll a concentrations for macrozoobenthos dynamics in the southern Wadden Sea          97
Jan Drent

Site Management and Restoration (p 105 - 122)

Vegetation structure of TMAP vegetation types on mainland salt marshes   105
Martin Maier, Julia Schwienheer, Klaus-Michael Exo, Julia Stahl

Safety and nature go hand in hand   111
Anky Woudstra

High tidal flats, salt marshes and managed realignments as habitats for fish  109
S. Colclough, L.Fonseca, W.Watts, M.Dixon

The Danish Houting Project   121
Jan Steinbring Jensen

Coastal Management and Sustainability (p 123 - 162)

Integrated Coastal Zone Management (ICZM): Status and Prospects   123
Bastian Schuchardt

Integrated modelling techniques for a transparent and participative decision support on the coast and in sea   129
Dietmar Kraft

What have we done? Mapping the historic cultural processes that shape our coastal and marine environment   133
Dave Hooley

Long-term perspectives in coastal zone development – A participatory assessment process 139
Frank Ahlhorn, Jürgen Meyerdirks, Thomas Klenke

Mussel culture and subtidal mussel stock management in the western Wadden Sea: are exploitation and conservation compatible?    145
A.C. Smaal, J.W.M. Wijsman, M.R. van Stralen

Do Directives give direction? Integration of nature conservation and fisheries    151
Paddy Walker
, Marion van Leeuwe   

The challenge of managing increasing numbers of geese in the Wadden Sea area: the need for objectives and tools to prioritize and evaluate efforts   157
Jesper Madsen

The Wadden Sea as a Cultural Landscape ( p 163 - 192)

The Wadden Sea as a cultural landscape and an archive of common history  163
Hauke Jöns

Heritage management in the Wadden Sea (in the strict sense)?   165
Sonja König

Settlement history of a lost landscape - archaeological remains in East Frisian tidal flats   167
Kai Niederhöfer

Living in a dynamic landscape: prehistoric and proto-historic occupation of the northern-Netherlands coastal area   173
Annet Nieuwhof

Initiation of dike-construction in the German clay district   179
Johannes Ey

Landscape and settlement history of the Western Heete Estuary, Butjadingen (district of Wesermarsch, Lower Saxony)   185
Ingo Eichfeld

The Jade Bay Project – a summary of targets and planned activities 189
Ingo Eichfeld, Alexander Bartholomä, Melanie Beck, Friederike Bungenstock, Holger Freund, Martina Karle, Ingrid Kröncke, Ulrike Schückel, Annette Siegmüller, Alexandra Silinski, Viola Stratmann, Achim Wehrmann, Wolfram Wartenberg

Impacts of Human Activities (p 193 - 216)

User limits or natural limits: can we set limits to human use, based on a natural functioning of the Wadden Sea?    193
M.J. Baptist, N. Dankers, C.J. Bastmeijer, A.G. Brinkman, J.E. Tamis, R. Jongbloed, F.E. Fey, W.E. van Duin, C.J. Smit, H.J. Lindeboom

Does sand extraction near Sylt affect harbour porpoises?   199
Ansgar Diederichs, Miriam Brandt,Georg Nehls

Contaminants in Bird Eggs in the Wadden Sea: Trends and Perspectives   205
Peter H. Becker, Tobias Dittmann

Global warming changes the terrestrial flora of the Wadden Sea   211
Detlev Metzing

 

Press information

Wadden Sea conservation across borders – how to get it fit for the future

The 12th Wadden Sea Symposium gives recommendations to the politicians

At the end of the 12th International Scientific Wadden Sea Symposium in Wilhelmshaven, the over 270 participants underlined the importance of closer cooperation on the protection of the Wadden Sea. “The symposium has shown that we have to enhance cross-border cooperation considerably to protect the Wadden Sea’s natural structure and functioning” says Jens Enemark, secretary general of the Common Wadden Sea Secretariat in Wilhelmshaven.

The symposium resulted in clear recommendations for the decision makers in policy. The recommendations are to be taken into consideration in the preparation of the next Trilateral Governmental Conference on Sylt in March 2010.

The symposium was organized by the German Ministry for the Environment, Nature Conservation and Nuclear, Safety, the National Park Administrations (Niedersachsen, Hamburg, Schleswig-Holstein Wadden Sea ), and the Common Wadden Sea Secretariat (CWSS).

Since 1975, when the first symposium was held, global changes have occurred which have affected the Wadden Sea as a marine habitat of international importance significantly. “Climate change and the subsequent changes in species composition are issues of concern which have to be dealt with by science and policy” says Wim Wolff (Uni Groningen) who initiated the first symposium in 1975. A main demand by the researchers is therefore to increase the resilience of the ecosystem. Management should aim to restore natural dynamics and geomorphological conditions in the Wadden Sea in order to allow the system to better adapt to accelerated sea level rise.

“To reach solutions for the entire ecosystem we have to cooperate across borders” says Karsten Reise (Alfred Wegener Institute for Polar- und Maritime Research, Wadden Sea Station Sylt). This means on the one hand to also protect the adjacent off-shore conservation areas, because there is a strong relationship between the Wadden Sea and these areas for fish and marine mammals. “On the other hand, an international cooperation effort is required to prevent introduction and spreading of alien species in the Wadden Sea”

The experts concluded that the various EU Directives, which are relevant for the protection of the Wadden Sea, haven not been tuned sufficiently. A further harmonization is necessary which could also be an example for other European conservation areas.

In general, research and monitoring in the Wadden Sea have to be intensified further. “The states should not restrict themselves to minimum requirements resulting from the EU Directives as this does not provide sufficient information for a proper and scientifically sound ecosystem management of the Wadden Sea”

An important milestone of international cooperation is the “Memorandum of Understanding” which was signed between the Korean Ministry of Land, Transport and Maritime Affairs and the Trilateral Wadden Sea Cooperation at the symposium. It provides a foundation for a cooperation of tidal flat experts of these states. Korea has a tidal flat area with similar functions as the Wadden Sea and the cooperation has the aim to exchange knowledge and experiences between the two regions.

The results of scientific research over the last 30 years have also considerably contributed to support the nomination of the Wadden Sea as World Heritage Site. A decision of the UNESCO World Heritage Committee will be taken in June 2009.

Introduction to the theme of the symposium

The Trilateral Wadden Sea Cooperation has been supporting the implementation of the EU Directives by providing over 20 years experience of integration, coordination and harmonization of research, monitoring and management for the entire ecosystem Wadden Sea. Examples are the Wadden Sea Plan and the Trilateral Monitoring and Assessment Program (TMAP), both of which are based on an ecosystem approach.

The scientific conference will focus on how research and monitoring can provide input to conservation and management, by developing new methods and assessment tools. In addition, limitations or gaps in knowledge will be identified. Recommendation will be given how EU Directives should be applied in future to ensure a harmonized management of the Wadden Sea, based upon an ecosystem approach.

Objectives of the symposium

  • To provide new scientific insights for the integrated assessment and management of the Wadden Sea ecosystem as an entity (e.g. how to deal with aliens species and impacts of climate change, what triggers the ecological processes?),
  • To identify future work areas for science, monitoring and management in the Wadden Sea,
  • To give recommendations for harmonization and adaptation of the implementation of the EU Directives in the Wadden Sea.

 Addressed themes

  1. The dynamic Wadden Sea ecosystem versus a static threshold value approach:

o        What do population trends, abundances or species composition really tell us?

o        How to define scientifically sound conservation objectives and assessment criteria?

o        How to deal with Neobiota?

  1. Wadden Sea habitat management:

o        Habitat definition (a.o. reefs, sublittoral habitats)

o        Restoration in a dynamic environment (estuaries, de-embankments),

o        Examples of site management;

  1. How to integrate human use, nature conservation and EU Directives?

o        How to substantiate sustainability? (Economic and societal aspects, ICZM)

o        How to assess “cumulative effects of human activities”?

o        Examples of best practice.

  1. Marine Strategy Directive: The Wadden Sea as a sub-region? (Workshop)

For further information please contact:
Mr. Harald Marencic
Common Wadden Sea Secretariat (CWSS)
Virchowstr. 1
D-26382 Wilhelmshaven
Phone: +49 (0)4421 9108 15
marencic@waddensea-secretariat.org

 

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