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| Gonionemus vertens L. Agassiz (Limnomedusae) - a zoogeographical puzzle |  |
| Tambs-Lyche, H. (1964). Gonionemus vertens L. Agassiz (Limnomedusae) - a zoogeographical puzzle Sarsia 15: 1-8 |
| In: Sarsia. University of Bergen. Universitetsforlaget: Bergen. ISSN 0036-4827, meer |
| Trefwoorden |
Zoögeografie; Gonionemus vertens A. Agassiz, 1862 [Kruiskwal] [WoRMS]; Marien |
| Abstract |
Gonionemus vertens was found in 1958 in two localities in western Norway. The distribution of the species is discussed, and it is concluded that most probably it has been spread by transport with ships, as part of the fouling community on the outside of the hull. From where it was originally distributed cannot now be ascertained; it may just as well have been from Europe as from North America. Nor can it safely be said when the main spreading took place, though probably this was some time ago, in the days of wooden sailing ships. |
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