Literature
| [1] | Frank Emil Moen & Erling Svensen (2003): Dyreliv i havet |
| [2] | Stein Mortensen & Per Eide (1997): Et levende hav |
| [3] | Per Pethon (1985): Aschehougs store Fiskebok |
| [4] | Peter Hayward, Tony Nelson-Smith & Chris Shields (1996): Sea shore of Britain and Europe |
| [5] | P. J. Hayward & J. S. Ryland (2003): Handbook of the Marine Fauna of North-West Europe |
| [6] | Paul F. S. Cornelius: North-West European Thecate Hydroids and their Medusae, part 1. |
| [7] | Paul F. S. Cornelius: North-West European Thecate Hydroids and their Medusae, part 2. |
Acknowledgements
The following people have contributed in my work with this web site (but has no responsibility for any incorrect pieces of information):
Jussi Evertsen at the university in Trondheim for a lot of constructive feedback on my sea slug pages.
Frank Emil Moen for helping me identifying some of the species.
Marianne Giæver, my wife (PhD in marine biology), for having the patience to share some of her knowledge with me, but not to blame for any misinformation presented on this website.
Classification sources
The classification of species is primarily based on information from the European Register of Marine Species. Other excellent sources on classification used on www.seawater.no are: