Himanthalia elongata Thongweed, Sea Thong, Sea Spaghetti

Himanthalia elongata is commonly referred to as Thongweed, Sea Thong, Sea Spaghetti. Difficulty in the aquarium: Not suitable for aquarium keeping. Toxicity: Toxic hazard unknown.

Profile

lexID:

18160 

AphiaID:

145551 

Scientific:

Himanthalia elongata 

German:

Riementang 

English:

Thongweed, Sea Thong, Sea Spaghetti 

Category:

 

Family tree:

Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Fucales (Order) > Himanthaliaceae (Family) > Himanthalia (Genus) > elongata (Species) 

Initial determination:

(Linnaeus) S.F.Gray, 1821 

Occurrence:

the Baltic Sea, the North Sea, Belgium, Danmark, European Coasts, France, Ireland, Netherlands, North Atlantic Ocean, Norway, Portugal, Skagerrak (North Sea), Spain, Sweden, the British Isles, the Faroe Islands 

Marine Zone:

Intertidal (Eulittoral), intertidal zone between the high and low tide lines characterized by the alternation of low and high tide down to 15 meters 

Sea depth:

Meter 

Habitats:

Coastal waters, Intertidal zone, Tidal Zone, Mudflat, Wadden Sea, Rocky shores, Rock coasts, Seawater, Sea water 

Size:

0.39" - 2.76" (1cm - 7cm) 

Temperature:

°F - 68 °F (°C - 20°C) 

Food:

Photosynthesis 

Difficulty:

Not suitable for aquarium keeping 

Offspring:

None 

Toxicity:

Toxic hazard unknown 

CITES:

Not evaluated 

Red List:

Not evaluated (NE) 

More related species
in this lexicon:

• 
  Himanthalia elongata
  Riementang

 

Author:

Meerwasser-Lexikon Team

Publisher:

Meerwasser-Lexikon.de

Created:

2026-02-15 19:10:59 

Last edit:

2026-02-15 19:19:01 

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