EASIN - European Alien Species Information Network

Thread Discussion: Pherusella brevituba [thread closed]

Author: Fabio CROCETTA
Created On: 6/18/2014 12:23 PM

Closed On: 11/19/2015 3:00 PM
Closing User: Fabio CROCETTA

Responsible Member(s):
Stelios Katsanevakis

Closed On: 11/19/2015 3:00 PM
Closing User: Fabio CROCETTA

Fabio CROCETTA
6/18/2014 12:23 PM

In EASIN is considered cryptogenic. As far as I know it is known from California (Pacific Ocean). If records for the W Atlantic are lacking, I would suggest to include it among aliens.

Marco FAASSE
9/30/2015 6:16 PM

Pherusa brevituba Soule 1951 was indeed described from California, where it is now well-known. In 2005 it was reported from the Mediterranean (Ustica, Sicily) by Chimenz & d'Hondt (2005). These authors apparently regard it as an alien species. This assumption is warranted as it is apparently not known from other European locations. Furthermore, a phylogenetic argument is that no other European Pherusella species are known. P. flabellaris is a Pacific species as well (China Sea) and P. tubulosa is reported to be cosmopolitan (Chimenz Gusso et al., 2004), possibly as a result of introductions to other regions. Chimenz Gusso C Boccia P & Giovanni N 2004. Importance of faunistic and taxonomical studies for a correct analysis of the zoogeography of Mediterranean Bryozoa. Biogeographia XXV. Chimenz Gusso C & d'Hondt JL 2005. Finding of Pherusella brevituba Soule, 1951 (Bryozoa Ctenostomatida, Pherusellidae) in the Mediterranean Sea. Bollettino del Museo Civico di Storia Naturale di Verona 29: 85-88.

Eugenio GERVASINI
11/19/2015 3:00 PM

Status of the species in the Catalogue changed to Alien.

Fabio CROCETTA
[Closing post]
11/19/2015 - 3:00 PM

Status of the species in the Catalogue changed to Alien.

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