The monitoring is not systematic. Larger scale distribution mapping of reefs and sandbanks started in 2011. Mapping takes place within Natura 2000 areas and specific mapping of deep muddy bottom and shallow mud surfaces are not mapped.

The program including rationale for the geographic scope can be found here: http://naturstyrelsen.dk/naturbeskyttelse/national-naturbeskyttelse/overvaagning-af-vand-og-natur/novana-program/ The monitoring program is developed for both the Water Framework directive and adapted and expanded for the Habitats directive. It monitors development, species composition and biodiversity on reefs at different depths. It therefore contributes to the monitoring of impacts of measures as well as establishes the basis for future environmental managerial decisions.

The program including rationale for the geographic scope can be found here: http://naturstyrelsen.dk/naturbeskyttelse/national-naturbeskyttelse/overvaagning-af-vand-og-natur/novana-program/ The monitoring program is developed for both the Water Framework directive and adapted and expanded for the Habitats directive. It monitors development, species composition and biodiversity on reefs at different depths. It therefore contributes to the monitoring of impacts of measures as well as establishes the basis for future environmental managerial decisions.

The program including rationale for the geographic scope can be found here: http://naturstyrelsen.dk/naturbeskyttelse/national-naturbeskyttelse/overvaagning-af-vand-og-natur/novana-program/ The monitoring program is developed for both the Water Framework directive and adapted and expanded for the Habitats directive. It monitors development, species composition and biodiversity on reefs at different depths. It therefore contributes to the monitoring of impacts of measures as well as establishes the basis for future environmental managerial decisions.

The vessel monitoring system (VMS) is a satellite-based monitoring system which at regular intervals provides data to the fisheries authorities on the location, course and speed of vessels.

Commercial vessels are selected randomly and success rate is recorded. Success rate is defined as the number of fishermen willing to participate in allowing the observers to come onboard. A new sampling system was introduced in 2011, where vessels are selected on a stratified random basis, based on last year’s data. For each métier and quarter a vessel selection spreadsheet has been computed and the change of selecting a vessel are weighted with the amount of trips conducted in the same quarter and area one year earlier. When a vessel is selected by the computer the observers are oblique to call the skipper to ask for the possibility to conduct an observer trip with his vessel. As the system is weighting the amounts of trips conducted by the vessel it is possible to select the same ship more than once within a quarter. The fishermen answers are registered in a log. If a skipper decisively refuses to have an observer on board he is not contacted again within that year even though the ship is selected again by the system. However, the ship is registered with the same answer. If the skipper says “no” but is given a more vague answer (try again later or it is not fitting very good right now) he will be called again the next time the vessel is being selected by the system.

Commercial vessels are selected randomly and success rate is recorded. Success rate is defined as the number of fishermen willing to participate in allowing the observers to come onboard. A new sampling system was introduced in 2011, where vessels are selected on a stratified random basis, based on last year’s data. For each métier and quarter a vessel selection spreadsheet has been computed and the change of selecting a vessel are weighted with the amount of trips conducted in the same quarter and area one year earlier. When a vessel is selected by the computer the observers are oblique to call the skipper to ask for the possibility to conduct an observer trip with his vessel. As the system is weighting the amounts of trips conducted by the vessel it is possible to select the same ship more than once within a quarter. The fishermen answers are registered in a log. If a skipper decisively refuses to have an observer on board he is not contacted again within that year even though the ship is selected again by the system. However, the ship is registered with the same answer. If the skipper says “no” but is given a more vague answer (try again later or it is not fitting very good right now) he will be called again the next time the vessel is being selected by the system.

Commercial vessels are selected randomly and success rate is recorded. Success rate is defined as the number of fishermen willing to participate in allowing the observers to come onboard. A new sampling system was introduced in 2011, where vessels are selected on a stratified random basis, based on last year’s data. For each métier and quarter a vessel selection spreadsheet has been computed and the change of selecting a vessel are weighted with the amount of trips conducted in the same quarter and area one year earlier. When a vessel is selected by the computer the observers are oblique to call the skipper to ask for the possibility to conduct an observer trip with his vessel. As the system is weighting the amounts of trips conducted by the vessel it is possible to select the same ship more than once within a quarter. The fishermen answers are registered in a log. If a skipper decisively refuses to have an observer on board he is not contacted again within that year even though the ship is selected again by the system. However, the ship is registered with the same answer. If the skipper says “no” but is given a more vague answer (try again later or it is not fitting very good right now) he will be called again the next time the vessel is being selected by the system.

The aim of the "Key-fishermen" projects is to register fish catches and document fish assemblages in Danish coastal waters over a consecutive number of years.

Commercial vessels are selected randomly and success rate is recorded. Success rate is defined as the number of fishermen willing to participate in allowing the observers to come onboard. A new sampling system was introduced in 2011, where vessels are selected on a stratified random basis, based on last year’s data. For each métier and quarter a vessel selection spreadsheet has been computed and the change of selecting a vessel are weighted with the amount of trips conducted in the same quarter and area one year earlier. When a vessel is selected by the computer the observers are oblique to call the skipper to ask for the possibility to conduct an observer trip with his vessel. As the system is weighting the amounts of trips conducted by the vessel it is possible to select the same ship more than once within a quarter. The fishermen answers are registered in a log. If a skipper decisively refuses to have an observer on board he is not contacted again within that year even though the ship is selected again by the system. However, the ship is registered with the same answer. If the skipper says “no” but is given a more vague answer (try again later or it is not fitting very good right now) he will be called again the next time the vessel is being selected by the system.