PLEASE NOTE - THIS IS AN ARCHIVED SITE:

The MESH project ended in 2008 and this website is no longer updated.


Please see the EMODnet Seabed Habitats website for current information about habitat mapping data and standards in Europe.

Background to the MESH Project

 

The seas around north-west Europe support an exceptionally wide range of seabed habitats and rich biodiversity. These provide important food resources (fish, shellfish), contribute to essential ecosystem functioning (such as nutrient recycling) and yield valuable natural resources (oil, gas, aggregates). In addition the seabed is subject to increasing pressures from new developments, such as for renewable energy (e.g. wind-farms) and coastal developments for leisure activities and coastal defences.

 
 Deep Water Coral
(© Crown copyright*)
 
These multiple uses bring ever-growing pressures on our seas and coasts, leading to increased risk of conflict between users with a greater potential for degradation of the marine environment and the essential physical, chemical and biological processes that maintain our marine ecosystem. We are responding to this challenge through recognising the need for much improved integrated spatial planning for our seas (where traditionally planning has been very piecemeal or sectoral), as reflected by the new requirement for Strategic Environmental Assessments (SEAs) and issues raised recently within the developing EU Marine Strategy, by the OSPAR Commission and by national governments (e.g. the UK's Marine Stewardship Report). Additionally there are new and increasing international commitments (from the EC Habitats Directive and OSPAR) to protect certain marine habitats, including through the designation of a network of marine protected areas, whilst the EC Water Framework Directive and OSPAR require periodic assessment of ecosystem health, including its seabed biological communities. The assessment of coastal sensitivity to oil spills is currently hampered by the lack of proper data on habitats, as has been shown by the recent Prestige case in France.  
 
Marine Landscapes Map
 
Mapping marine landscapes in the MESH study area
(© MESH 2007)
 
All this creates a substantial demand for information about intertidal and seabed habitats, but is set against a background of patchy, inconsistent and poorly collated information on their distribution, extent and quality. There are few national programmes in the north-west Europe region which collate such information (except in France) and the information which is available is difficult to access, making very poor use of data which are expensive to collect. The recent increase in demand, coupled with advances in remote-sensing technologies over the past ten years, has led to a burgeoning of seabed mapping studies. These are undertaken using a variety of techniques, for a range of end needs (e.g. fisheries, commercial, nature conservation) and at various scales. The lack of international standards for these studies means the resulting data cannot readily be compared or aggregated and leads to an absence of regional, national and international perspectives on the seabed resource in spatial planning and decision-making.
 
MESH has addressed these issues in the following key ways:
 
  • Compiling available seabed habitat mapping information across north-west Europe and harmonising it according to European habitat classification schemes (the European Environment Agency's EUNIS system and the EC Habitats Directive types) to provide the first seabed habitat maps for north-west Europe (see map).
     
  • Existing studies were of variable quality and, more importantly, did not cover the entire study area. Habitat models were developed to predict the distribution of habitats in unsampled areas from the more widely available geophysical and hydrographic data. The final maps are presented with a quality rating so that end-users can determine their adequacy for their decision-making, and future survey effort can be strategically directed to areas with relatively low quality maps or little existing information.
     
  • A set of internationally agreed Recommended Operating Guidelines (ROGS) for habitat mapping have been developed following a review of protocols and standards, drawing upon the best available expertise across Europe and elsewhere, to help ensure that future mapping programmes yield quality assured data that can be readily exchanged and aggregated to further improve the initial maps. The protocols were tested through a range of field-testing scenarios involving trans-national co-operation to ensure they are robust and the results repeatable.
     
  • Both the protocols and the habitat maps have been made available through the website. The maps are displayed using an interactive Geographical Information System (GIS) that allows users to customise the map view by selecting layers of their choice and zooming to their location of interest. The website provides ready access to the information for a wide range of end-users at local, regional, national and international levels (e.g. spatial planners and managers; governments and other regulatory authorities, research institutions, educational establishments).
     
  • A wide spectrum of potential end-users have been engaged from the start of the project to help gain a better understanding of their requirements, and to encourage the supply of relevant data to the project. End-users are encouraged to use the mapping information in their spatial planning, management issues and for environmental protection. The network of stakeholders will continue to be valuable in helping to forge strategies within each country for the maintenance and further improvement of the seabed maps beyond the end of this project.

 

A separate guide is available for the non-scientist.

 

* © Crown copyright, all rights reserved. This photograph was produced as part of the UK Department of Trade and Industry's offshore energy Strategic Environmental Assessment programme.  The SEA programme is funded and managed by the DTI and coordinated on their behalf by Geotek Ltd and Hartley Anderson Ltd.

 
All material variously copyrighted by MESH project partners 2004-2010
 
INTERREG logo
| List Access Keys | EMODnet Seabed Habitats - Home | Overview | News | Work areas in the MESH Project | Partners | Contact Us | Search | Site Map | Partner Extranet |