About this database

The COMPLETE database on Biofouling is the undesirable growth of underwater structures by microorganisms, plants, algae and animals. This applies in particular to ship hulls and niches management provides information on the status and opportunities for inwater cleaning (IWC) of commercial ships and leisure boats in the Baltic Sea Region. The database contains information on ports and marinas, their respective requirements and possibilities for IWC and the companies, which provide IWC service. The list of cleaning companies does not claim to be complete, but is updated regularly. Furthermore, you can find information on antifouling systems (AFS), the authorized substances and products by country. All information is provided without warranty. Errors and changes excepted.

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The Risks of Biofouling

Biofouling as well as inadequate treatment with biocide-containing antifouling systems (AFS) also of commercial ships and leisure boats may pose significant environmental and economic risks [Show more]

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Biofouling Management

A holistic biofouling management covers the following aspects:

  • Development of a ship-specific Biofouling Management Plan (BFMP) and keeping of a Biofouling Management Record Book (BFRB) [Show more]
  • Choice of an adequate, ship- and operation-specific Antifouling System (AFS) [Show more]
  • Performance monitoring [Show more]
  • In-water inspections (IWI) and maintenance, e.g. in-water cleaning (IWC) [Show more]
  • Dry docking, e.g. renewal of AFS
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COMPLETECompleting management options in the Baltic Sea Region to reduce risk of invasive species introduction by shipping

COMPLETE addresses two major sources of harmful organisms introduction by shipping: ballast water and biofouling. The project tackles several gaps in current knowledge and management. COMPLETE works towards minimising the introduction of harmful aquatic organisms and pathogens by developing a consistent and adaptive management system for the Baltic Sea region. COMPLETE is funded by the Interreg Baltic Sea Region Programme [Link]

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Further Information


The Federal Maritime and Hydrographic Agency (BSH) is a higher federal authority within the portfolio of the Federal Ministry of Transport and Digital Infrastructure (BMVI). It is the public institution for maritime tasks. This concerns among others tasks such as averting dangers at sea, issuing official nautical charts and surveying tasks in the North Sea and Baltic Sea, as well as forecasting tides, water levels and storm surges.

Within the scope of our legal mandate, we concentrate on safety and environmental protection and represent German interests in Europe and internationally [Link].

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IMO - the International Maritime Organization - is the United Nations specialized, global standard-setting authority for the safety, security and environmental performance of international shipping. Its main role is to create a regulatory framework for the shipping industry that is fair and effective, universally adopted and universally implemented [Link].

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IMO - Biofouling Guidelines

The Guidelines for the control and management of ships' biofouling to minimize the transfer of invasive aquatic species (Biofouling Guidelines) (resolution MEPC.207(62)) are intended to provide a globally consistent approach to the management of biofouling [Link]

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The Baltic Marine Environment Protection Commission - also known as the Helsinki Commission (HELCOM) - is an intergovernmental organization and a regional sea convention in the Baltic Sea area. As a platform for environmental policy making at the regional level, HELCOM was established to protect the marine environment of the Baltic Sea from all sources of pollution through intergovernmental cooperation [Link]

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GloFouling Project

The GloFouling Project drives actions to implement the IMO Guidelines for the control and management of ships' biofouling, which provide a globally consistent approach on how biofouling should be controlled and managed to minimise the transfer of invasive aquatic species through ships' hulls. The project will also spur the development of best practices and standards for improved biofouling management in other ocean industries [Link].

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