Artículos de revistas
The invasive kelp Undaria pinnatifida (Phaeophyceae, Laminariales) reduces native seaweed diversity in Nuevo Gulf (Patagonia, Argentina)
Fecha
2004-12Registro en:
Casas, Graciela Noemi; Scrosati, Ricardo Augusto; Piriz, María Luz; The invasive kelp Undaria pinnatifida (Phaeophyceae, Laminariales) reduces native seaweed diversity in Nuevo Gulf (Patagonia, Argentina); Kluwer Academic/plenum Publ; Biological Invasions; 6; 4; 12-2004; 411-416
1387-3547
1573-1464
CONICET Digital
CONICET
Autor
Casas, Graciela Noemi
Scrosati, Ricardo Augusto
Piriz, María Luz
Resumen
The kelp Undaria pinnatifida (Phaeophyceae) is a seaweed native to northeast Asia, but during the last two decades, it has been accidentally or intentionally introduced in several temperate coasts worldwide. In central Patagonia (Argentina), this species was first detected in late 1992, and it is progressively spreading from the point of introduction. Through a manipulative experiment involving Undaria removal in 2001, we found that its presence is associated with a dramatic decrease in species richness and diversity of native seaweeds in Nuevo Gulf. Future prospects are worrisome, as, in addition to the negative impact from a biodiversity viewpoint, native commercial macroalgae and invertebrates might also be affected.