Research Projects

The conservation of biodiversity is an important aim at the national and international levels. Regarding the marine environment, the European Union mainly considers two Directives for this purpose: The Marine Strategy Framework Directive (MSFD) and the Habitats Directive .... [ mehr ]

In order to assess the conservation status of fish species, for example for the preparation of red lists, standardized methods for conservation assessments are used. Taking into account relevant environmental parameters, we develop mathematical habitat models ... [ mehr ]

The family Zoarcidae (eelpouts), a group of marine and mostly bottom-dwelling fishes, contains about 300 fish species. 230 of these species belong to the subfamily Lycodinae which is the focus of our research. Some of the Lycodinae species occur at great depth in the deep sea ... [ mehr ]

The last type catalogue for the fish collection of the CeNak was published 10 years ago (Thiel et al. 2009). Since then, taxonomic revisions and descriptions of new fish species have led to changes, so that the publication of a current type catalog for the fish collection of the CeNak has become necessary ... [ mehr ]

The European eel has an outstanding socio-economic importance. However, since the 1980s the landings decreased dramatically and the recruitment stagnates at a historic low level. By now the European Union requests its member states to establish measures aiming at the recovery and sustainable use of the eel stock ... [ mehr ]

For many years, the European eel stock has been assessed to be in an alarming state and the European eel has also been considered as “endangered species” since 2008. With the objectives of a recovery and the sustainable use of the stock, member states of the European Union were requested to elaborate specific eel management plans ... [ mehr ]

The fish fauna in river estuaries and other brackish water systems of Europe is often influenced by human activities, e.g. through shipping, fisheries, agriculture, tourism, climate change. In many European estuaries, therefore, native anadromous migratory fish species are declining, endangered or even extinct ... [ mehr ]