Acrothamnion preissii (Sonder) Wollaston

Balga

Description 1

A red-pink, very branching algae which measures 0.5-1.5 cm long. Filamentous, erect stalks, rooted to the substrate or other algae by rhizoids. The dense mantles that form, with a cotton-like appearance that reach 1 cm in thickness are characteristic. The central cells are cylindrical not cortical. The main branches are 150-300 cm long and 40-60 cm wide.

Biology 1

It propagates both by means of sexual reproduction and vegetative propagation. The presence and absence of A. preissii is favoured by sedimentation.

Habitat 1

This species occupies a large bathymetric range that can start at just a few meters under the surface up to nearly 40 m deep. This is a perennial species that can colonise different types of communities such as beds of Posidonia oceanica, maerl bottoms and not well lit vertical walls.

Sources 1

Spanish Catalogue of Exotic Invasive Species and Document sheets of the Exotic Invasive Species Act 630/2013 (GEIB)

Spanish Catalogue of Exotic Invasive Species - Algae 1

http://www.mapama.gob.es/es/biodiversidad/temas/conservacion-de-especies/especies-exoticas-invasoras/ce_eei_algas.aspx

Fuentes y Créditos

  1. Adaptado por INVASORES - administrador de un trabajo de (c) cartotragsatec, algunos derechos reservados (CC BY-SA), http://natusfera.gbif.es/guide_taxa/1987

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