Invasion
Invasion Description
1st Record: Chipiona/Spain/Chipiona harbour, Gulf of Cadiz (12/2009, Guerra-Garcia et al. 2011; 36º44 46 N, 6º25 46 W, associated with the bryozoan Zoobotryon verticillatum)
Molecular evidence suggests at least two separate invasions of the Iberian peninsula, from the Indian Ocean and the southwest Pacific (Australia), either directly, or via the central Mediterranean (Cabezas et al. 2014).; Sancti Petri marina (Chiclana de la Frontera), Rota marina (Rota) and Puerto América
marina (Cádiz)./Spain//Bay of Cadiz (2017, Revanales et al. 2022)
Geographic Extent
Arcachon/France/Bay of Arcachon (Wrking Group on Introductions and Transfers of Marine Organisms (022); Cascais/Portugal/Atlantic Ocean (2011, Cabezas et al. 2014, 38 41 27.40 N, 9 25 06.80 W, in Bugula neritina); Albufeira/Portugal/Atlantic Ocean (2011, Cabezas et al. 2014, 37 05 05.54 N, 8 15 58.20 W), Bugula neritina); Oeiras, Alcântara, Parque das Nações marinas/Portugal/Tagus estuary (Afonso et al. 2020); Chipiona/Spain/Chipiona harbour (12/2009, Guerra-Garcia et al. 2011; 36º44 46 N, 6º25 46 W, associated with the bryozoan Zoobotryon verticillatum); Cadiz/Spain/Chipiona harbour, Gulf of Cadiz (6/2010, Guerra-Garcia et al. 2011, Ros et al. 2012, 33 29 N, ;17 61 W, associated with Bugula neritina; Molina et al. 2017, common on marina floats, rarer on boats)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |
Regional Impacts
| Ecological Impact | Competition | |
| In the harbor of Cadiz, Spain, Caprella scaura has apparently replaced native Caprella equilibra or Caprella dilatata and apparently reduced the abundance of other native amphipods (Guerra-García et al. 2011). On the Atlantic and Mediterranean coasts of Spain, C. scaura tended to replace C. equilibria at salinities at 36-38 PSU, and higher temperatures (Ros et al. 2015) | ||