stefannehring.de

aquatic-aliens.de

www.aquatic-aliens.de  -  Species Directory

http://www.aquatic-aliens.de/species-directory.htm

Biotic homogenisation in Germany has probably been occurring over millennia, yet the long history of human invasion and trade blurs the distinction between native and alien species. Thus the origin of many species introduced in historical times is uncertain and especially so for aquatic habitats, where often the status and origin of species is unknown. Therefore, we only qualified as aliens such species which have been directly or indirectly introduced by man into German waters after the year 1492. It is...

aquatic-aliens.de

www.aquatic-aliens.de  -  Habitats

http://www.aquatic-aliens.de/habitats.htm

In German inland and coastal waters of the North and Baltic Sea, about 141 aquatic alien species. From different taxonomic groups have established permanent populations so far. First data analyses show that German waters are colonized primarily by alien invertebrate species, partly on a considerable scale. About every second species has already spread successfully across a larger area, about every fifth sp. Ecies can be defined as invasive. Species, subspecies, or lower taxon. Between the three German aq...

aquatic-aliens.de

www.aquatic-aliens.de  -  Disclaimer

http://www.aquatic-aliens.de/disclaimer.htm

AeT umweltplanung maintains this website to enhance public access to information about our work. Our goal is to keep this information timely and accurate. If errors are brought to our attention, we will try to correct them as soon we can. However, AeT umweltplanung accepts no responsibility or liability whatsoever with regard to the material on this site. This material is:. Not necessarily comprehensive, complete, accurate or up to date; and. This disclaimer is not intended to limit the liability of AeT ...

aquatic-aliens.de

www.aquatic-aliens.de  -  Management

http://www.aquatic-aliens.de/management.htm

In the German Wadden Sea the invasive Pacific oyster Crassostrea gigas. Is about to transform. Intertidal mussel beds of the native blue mussel Mytilus edulis. At global level the only instrument that covers all aspects of invasive alien species as they relate to biodiversity, is the Convention on Biological Diversity. Which was actually adopted as a convention by IMO member States in 2004. This convention will enter into force 12 months after ratification by 30 States, representing 35 per cent of wo...

aquatic-aliens.de

www.aquatic-aliens.de  -  Vectors

http://www.aquatic-aliens.de/vectors.htm

Number of established alien species in German inland and coastal waters, known or probable. Introduction vectors, main watersheds, important shipping canals and their opening date. In Germany the common cord-grass Spartina anglica. Ornamental trade is an important factor for the introduction of alien species in aquatic habitats. These species are spread throughout the world in a generally unregulated industry. The aquarium trade - an important source of introduction for. Also some invertebrate species be...

aquatic-aliens.de

www.aquatic-aliens.de  -  Publications

http://www.aquatic-aliens.de/resources.htm

Resources on the internet. Links to internet sites relevant for the subject of alien species. The list is still under development, additions are welcome. Aliens in Belarus (AIB. Aquatic alien species in the Republic of Belarus. Belgian Forum on Invasive Alien Species. European Research Network on Aquatic Invasive Species'. Global Ballast Water Management Programme'. Invasive Species Specialist Group' of the IUCN Species Survival Commission. A German working group on alien species. Michaux) Greuter and Bu...

aquatic-aliens.de

www.aquatic-aliens.de  -  Impacts

http://www.aquatic-aliens.de/impacts.htm

However, until today scientific interest in alien species is often only descriptive (e.g., documentation of invasion history, studies on distribution pattern, and abundance assessment; Nehring 2000, 2002; Reise et al. 1998, 2002; Tittizer et al. 2000). The functional role of these species in aquatic ecosystems and their realized niches in the invaded communities remains to be quantified. The invasive cord-grass Spartina anglica. At the back) displaces. Ia the native glass-wort Salicornia stricta. These a...

neozoa.de

NEOZOA (Makrozoobenthos) in den deutschen Gewässern

http://www.neozoa.de/impressum.htm

Neozoa (Makrozoobenthos) in den. Fon: 0261 - 13303-98. FAX: 0261 - 13303-99. Haftungshinweis: Trotz sorgfältiger inhaltlicher Kontrolle übernehmen wir keine Haftung für die Inhalte externer Links. Für den Inhalt der verlinkten Seiten sind ausschließlich deren Betreiber verantwortlich. 2005 by Dr. Stefan Nehring / www.neozoa.de.