Alaria esculenta
Flügeltang ( Alaria esculenta )
The Flügeltang ( Alaria esculenta ), also called Edible Riementang, is a Braunalgenart of the order Laminariales. It is common on the coasts of the North Atlantic and North Pacific and is also found in the North Sea.
Description
The Flügeltang is a perennial kelp, whose thallus reaches a length of 0.5 to 4 m. On the ground it is anchored by a strong, branched detention claw. A round, flexible stalk of 10 to 30 cm length goes into the strong center rib of the long leaf -like Phylloids. Persevering is only the stem, the leaf area is newly formed annually. The soft, brown to dark brown Phylloid is band-like, narrow with a width of 5 to 25 cm. The leaf margin is torn slightly wavy and often. The midrib is well marked, it is weak flattened and yellow-brown coloration.
The top of the stem arise laterally densely distichous leaves arranged in which the spores are formed. These sporophylls with a length of 10 to 20 cm and a width of 1 to 2 cm are short-stalked, oblong to wedge-shaped base and have no midrib.
Of the introduced species in the Northeast Atlantic Undaria pinnatifida ( wakame ), which also has a midrib, the Flügeltang can be distinguished by its clearly salient and usually lighter midrib and the sporophylls at the leaf base.
Occurrence
The distribution area of Flügeltangs includes the North-East Atlantic from Greenland and Spitzbergen to France, the Northwest Atlantic from Newfoundland to New York and the North Pacific (Alaska, Sea of Okhotsk, Korea). It also comes in the North Sea near Helgoland.
He settled the waves exposed rocks and often forms large stocks in the low-water line and in the shallow subtidal. Occasionally, he can also be found in tide pools.
System
The first description of Flügeltangs was made in 1767 by Carl Linnaeus, under the name Fucus esculentus ( in Systema Naturae 2, p 718). Robert Kaye Greville put the type in 1830 in the genus Alaria ( in: Algae Britannica 34, p 25).
Synonyms of Alaria esculenta (L.) Greville are Agarum esculentum (L.) Bory de Saint -Vincent, Ceramium esculentum (L.) Stackhouse, Fucus esculentus L., Laminaria esculenta (L.) C.Agardh, Musaefolia esculenta (L. ) Stackhouse, Orgyia esculenta (L.) Stackhouse, Phasgonon esculentum (L.) and SFGray Podopteris esculentum (L.) De la Pylaie. As more synonyms Agarum apply delisei Bory de Saint -Vincent, Alaria delisei ( Bory ) Greville, Alaria dolichorhachis Kjellman, Alaria grandifolia J.Agardh, Alaria linearis Strömfelt, Alaria macroptera ( Ruprecht ) Yendo, Alaria musaefolia ( Bachelot de la Pylaie ) J. Agardh, Alaria platyrhiza Kjellman, Fucus pinnatus Gunnerus, Fucus teres Goodenough & Woodward, Laminaria musaefolia Bachelot de la Pylaie, Orgyia delisii ( Bory de Saint -Vincent ) Trevisan, Orgyia pinnata Gobi and Phasganon macropterum Ruprecht.
Alaria esculenta belongs to the family Alariaceae in the order Laminariales.
Use
The Flügeltang is edible and is listed as " Irish Wakame ".
Swell
- Wolfram Braune: seaweed. A color guide to the benthic green - brown and red algae of the oceans. Ruggell: Gantner, 2008, ISBN 978-3-906166-69-8, pp. 178, 181 (sections description, occurrence)
- Michael D. Guiry, GM Guiry: Alaria esculenta - In: AlgaeBase - World -wide electronic publication, National University of Ireland, Galway, accessed April 24, 2012 (sections systematics, occurrence)