Details
Complete name:
Tricellaria inopinata d'Hondt & Occhipinti Ambrogi, 1985
Taxonomy:
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Bryozoa »
Gymnolaemata »
Cheilostomata »
Scrupocellariidae »
Tricellaria inopinata
Authors:
B. S. Galil and A. Occhipinti-Ambrogi
Last updated: November 5th, 2006
Common Names
Synonyms
Tricellaria inopinata
Short Description
A robust opportunistic bryozoan, capable of enduring a wide spectrum of temperatures and salinities, as well as high organic content. Settles on a wide range of anthropogenic and natural substrata.
Introduction Pathway
The undetermined Pacific origin of the species (belonging to the species complex T. porteri-occidentalis-inopinata) suggests that the first Mediterranean introduction was very likely due to oyster import. Secondary introductions are possibly due to small vessels (small commercial vessels, yachts, fishing boats in coastal routes) or dispersed with currents on floating fragments of Sargassum.
Distribution
- Native Range
- Cryptogenic in temperate Pacific: North America, Japan to Taiwan, Australia.
- Known Introduced Range
- New Zealand; Mediterranean: northern Adriatic Sea; northeast Atlantic, from Galicia (Spain) to the Netherlands.
- Trend
- In 1982 T. inopinata was first collected in the Venice Lagoon, Italy, where its populations peaked in the late 1980s, and has since declined somewhat. In 1996 it was first observed in the Atlantic, in the northwest of Spain, in 1998 it was observed in south England. In 2000 it was found in several locations in France, Belgium and the Netherlands, where it is widespread and abundant. It seems to form rapidly expanding populations.
Distribution Map
Main symbols used in maps
   | known distribution area (in CGRS grid squares; in countries; along coast) |
Specific symbols occurring only in some species
 | eradicated |
 | extinct |
 | not present; eradicated |
 | native distribution range in CGRS grid squares |
 | native range |
 | assumed native range |
 | infrequent distribution |
 | key distribution area |
 | not established |
Countries
Contributors
The following contributors have provided records in the DAISIE database for this species.
| Name | Institute |
|---|
| Phil Lambdon |
NERC Centre for Hydrology and Ecology |
| Stephan Gollasch |
GoConsult |
Experts
The following experts registered themselves as having knowledge about this species or its family.
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References
Blauwe H de, Faasse M (2001) Extension of the range of the bryozoans Tricellaria inopinata and Bugula simplex in the north-east Atlantic Ocean (Bryozoa: Cheilostomatida). Nederlandse Faunistiche Mededelingen 14:103-112
Dyrynda PEJ, Fairall VR, Occhipinti Ambrogi A, d’Hondt JL (2000) The distribution, origin and taxonomy of Tricellaria inopinata d’Hondt and Occhipinti Ambrogi, 1985, and invasive bryozoan new to the Atlantic. Journal of Natural History 34:1993-2006
Hondt JL d’, Occhipinti Ambrogi A (1985) Tricellaria inopinata, n. sp., un nouveau Bryozaire Cheilostome de la faune méditerranéenne. P.S.Z.N.I: Marine Ecology 6(1):35-46
Other References
Fernandez-Pulpeiro E, Cesar-Aldariz J, Reverter-Gil O (2001) Sobre la presencia de Tricellaria inopinata d’Hondt and Occhipinti Ambrogi, 1985 (Bryozoa: Cheilostomatida) en el litoral gallego (N.O. España). Nova Acta Cientifica Compostelana (Bioloxía) 11:207-213
Occhipinti Ambrogi A (1991) The spread of Tricellaria inopinata into the lagoon of Venice: an ecological hypothesis. Bulletin Société des Sciences Naturelles de lOuest de la France, H.S. 1:299-308
Occhipinti Ambrogi A d’ Hondt JL (1994) The invasion ecology of Tricellaria inopinata into the lagoon of Venice: morphological notes on larva and ancestrula. In: Hayward, P.J., J.S. Ryland and P.D. Taylor (eds.), Biology and palaeobiology of bryozoans. Olsen and Olsen, Fredensburg (Denmark): 139-144. [Proceedings of the 9th International Bryzoology Association Conference, 1992]
Tricellaria inopinata
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