First observed: 2005 (Schories, Selig 2006)
Taxon: Rhodophyta
Origin: Japan Sea
Vector of introduction: shipping (Schories, Selig 2006)
Distribution in the Baltic Sea: Kattegat and Belt Sea
Species status: status unknown
Salinity in native habitats: Polymixohaline to Euhaline (Yokoya et al. 1999)
Salinity in the Baltic Sea: - (Schories, Selig 2006)
Ecofunctional group: macrophytes
Ecological impact: community dominance (Thomsen et al. 2005), food-prey (Aikins, Kikuchi 2002)
Impact on uses/resources: -References:
Aikins S., Kikuchi E. 2002. Grazing pressure by amphipods on microalgae in Gamo Lagoon, Japan. Mar. Ecol. Prog. Ser., 245: 171-179.
Rueness J. 2005. Life history and molecular sequences of Gracilaria vermiculophylla (Gracilariales, Rhodophyta), a new introduction to European waters. Phycologia, 44: 120-128.
Schories D., Selig U. 2006. How to deal with alien species within the EU Water Framework Directive? [Die Bedeutung eingeschleppter Arten (alien species) fur die Europaische Wasserrahmenrichtlinie am Beispiel der Ostsee]. Rostock. Meeresbiolog. Beitr., 15: 147-158 (in German with English summary).
Thomsen M.S., Gurgel C.F.D., Fredericq S., McGlathery K.J. 2005. Gracilaria vermiculophylla (Rhodophyta, Gracilariales) in Hog Island Bay, Virginia: a cryptic alien and invasive macroalga and taxonomic correction. J. Phycol., 42: 139-141.
Yokoya N.S., Kakita H., Obika H., Kitamura T. 1999. Effects of environmental factors and plant growth regulators on growth of the red alga Gracilaria vermiculophylla from Shikoku Island, Japan. Hydrobiologia 398/399: 339-347.
|
