alien species are considered the second biggest threat to
biodiversity globally. Correct identification of alien species is a
key issue for preventing the spread of these species as well as
monitoring the effects on local ecosystems. Marine organisms are
considered especially difficult to identify, and also, once
established in a new marine region, almost impossible to get rid of.
The NOBANIS identification key to marine invasive species is a
Nordic project based on expert taxonomic knowledge. It is aimed at
users in management of invasive species and marine biodiversity who
are not trained taxonomists, but it can be useful to anyone with an
interest in marine life.
The key covers the marine invertebrates
and fish presently known to be introduced in Nordic waters. However,
Nature is dynamic and new species continue to appear. Therefore the
key has been designed to permit addition of information on new
species arriving in the region.
Keys and fact sheets have been written by Dr. Kathe R. Jensen and
the web-version has been generated in collaboration with an expert
network from institutions in the Nordic countries, the Danish Forest
and Nature Agency and the Agency for Spatial and Environmental
Planning, both under the Danish Ministry of the Environment. Funding
has been provided by the Nordic Council of Ministers.
If you have problems using this key, or if you have a species
that does not seem to fit any of the species described in fact
sheets or through links you can send a digital photo; please also
include location, date, and your name and contact information.
We will update the key and incorporate corrections and additions
NOBANIS secretariat: +45 72542418 or
Kathe R. Jensen: