Report: Sublitoral: Identification of habitats worthy of protection with sonar techniques (1999)»

Description

“This report presents the results of the research project funded by the Lower Saxony Wadden Sea Foundation “Inquiries for the detection of habitats worthy of protection in the sublitoral of the Lower Saxony coast using sonar techniques”. The task of this project was to examine sonar techniques for their usability to identify and distinguish different types of sediment and benthic communities. The use of these sonar techniques is expected to improve the validity of sublitor surface surveys in the gutter system of the Wadden Sea or in the coastal forefield, which are carried out for management or conservation purposes, and to make their implementation less complex. The focus of the research was on working with a new approach, the acoustic seabed classification. For comparison — in cooperation with the Senckenberg Institute in Wilhelmshaven — a device has been used for a long time with the side-view sonar. [...] These methods are intended to provide information about the sublitoral in an effective way and help to reduce the time-consuming and costly use of conventional examination methods or to improve the quality and meaningfulness compared to previous research approaches. First, several particularly protective organism communities (Miesmuschelbank, Sabellaria reef, seagrass meadow) and widespread sediment types in coastal areas were examined with regard to their detectability and classification by the sonar methods. [...]» Summary The investigations described in this report targeted at he examination and adaptation of sonar methods for their application in the gullies of the Wadden Sea and the offshore areas of Lower Saxony. Applied in an effective way, these methods should provide information about the sublitoral area helping to reduce the time and cost demanding employment of conventional investigation methods. First of all, several benthic communities with high importance for nature conservation (mussel beds, Sabellaria reefs, seagrass meadows) as well as common sediment types of the coastal area were examined with respect to their detection and classification with the sonar methods. [...]»

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  • niedersäschsische-küste
  • sonar-sublitoral-sonartechniken-miesmuschel-sabellaria-riff-seegraswiesen-benthos-sonar-methods-mussel-beds-seagrass-meadows-sabellaria-reefs-sediment-types-nlwkn

Topics

  • ENVI

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