RHODOPHYTA : AHNFELTIALES : AhnfeltiaceaeRED ALGAE

Ahnfeltia plicata (Hudson) Fries


Ahnfeltia plicata

Description: Gametangial fronds stiff, erect and wiry, almost black in colour, growing to a maximum of 15 cm long. The tetrasporangial phase (Porphyrodiscus simulans) is crustose and grows to 30 cms in diameter.

Habitat: Epilithic in rock pools of the lower littoral and in the sublittoral to a depth of 12 m.

Distribution: Generally common around the British Isles. Europe: Azores, Portugal, Atlantic coasts of Spain and France, Netherlands, Baltic Sea, Norway, Faroes, Spitzbergen and Iceland. Greenland. Atlantic coast of North America: Canada, Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut and New Jersey. Further afield: Arctic Sea circumpolar to Baffin Bay, Pacific and Indian Oceans.

Key Identification Features:

Distribution Map from BioMar data for Ireland - Google Earth map:  download this placemark (not got Google Earth installed?)

Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.



 Morton, O. & Picton, B.E., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland
http://www.habitas.org.uk/marinelife/species.asp?item=ZM5660

[Show species list]

[Home]