MACOI - Portuguese Seaweeds Website

Gymnogongrus
crenulatus (Turner) J.Agardh

Gymnogongrus crenulatus
(Turner) J.Agardh
(detailed information)


Species Details
Class:	Florideophyceae
Genus:	Gymnogongrus Martius
Species:	Gymnogongrus crenulatus
Authority:	(Turner) J.Agardh
Description:	Cartilaginous, fleshy, flattened, dark red fronds, to 100 mm high, with short cylindrical stipe from basal disc. Repeatedly dichotomous, branches strap-shaped, apices rounded, often paler than rest of frond. Reproductive structures appear as external, wart-like excescenses. Original publication: Agardh, J.G. (1851). Species genera et ordines algarum, seu descriptiones succinctae specierum, generum et ordinum, quibus algarum regnum constituitur. Volumen secundum: algas florideas complectens. Part 1. pp. [ii-iii], [i]-xii, [1]-336 + 337-351 [Addenda and Indices]. Lundae [Lund]: C.W.K. Gleerup. Download PDF from Algaebase

Taxonomy	Plantae, Rhodophyta, Florideophyceae, Gigartinales, Phyllophoraceae, Gymnogongrus
Name History	Adjective (Latin), crenulate, having small rounded teeth
Biogeography	NE Atlantic (Ireland and Britain to Mauritania, Canary Is, Cap Verde Is); NW Atlantic (New Brunswick to Massachusetts); Australia.
Uses and compounds	G. crenulatus produce a hybrid carrageenan (64.1 κappa, 30.8 ιota).
References	Ardré, F. (1977). Sur le cycle morphologique du Gymnogongrus crenulatus (Turn.) J. Ag. (Gigartinale, Rhodophycée) en culture. Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. Série D 285: 513-514. Ardré, F. (1978). Sur le cycles morphologiques du Gymnogongrus crenulatus (Turn.) J. Ag. et du Gymnogongrus devoniensis (Grev.) Schott. (Gigartinales, Phyllophoracées) en culture. Revue Algologique, Nouvelle Serie 13: 151-176. Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, 266 pls. Ruggell: A.R.G. Gantner Verlag.

Habitat:	Marine species, Epilithic, lower littoral in pools and emergent, and sublittoral to 13 m, tolerant of sand cover; plants typically encrusted with species of Bryozoa, Foraminifera and calcareous algae
Common names:
Type information:	Type locality: Oporto, Portugal (Turner 1802). Lectotype: BM-K (Turner 1802: pl. 8). Notes: See also Dixon & Irvine (1977: 217). Basionym: Fucus crenulatus Turner

Specimens

( 38 record(s) available )

1 2

Type	Number	Species	Date	Coastal Station
(F)	37	Gymnogongrus crenulatus (Turner) J.Agardh	1999-10-09	Apúlia, Portugal
(F)	70	Gymnogongrus crenulatus (Turner) J.Agardh	2000-09-29	Buarcos Bay, Portugal
(H)	225	Gymnogongrus crenulatus (Turner) J.Agardh	2001-08-07	Albufeira, Portugal
(F)	422	Gymnogongrus crenulatus (Turner) J.Agardh	2002-06-12	Aguda, Portugal
(F)	451	Gymnogongrus crenulatus (Turner) J.Agardh	2002-08-09	Polvoeira (Nazaré), Portugal
(H) (F)	559	Gymnogongrus crenulatus (Turner) J.Agardh	2003-05-12	Légua, Portugal
(H) (F)	588	Gymnogongrus crenulatus (Turner) J.Agardh	2003-05-16	S. Pedro de Moel, Portugal
(O)	925	Gymnogongrus crenulatus (Turner) J.Agardh	1999-10-09	A-Ver-o-Mar, Portugal
(O)	959	Gymnogongrus crenulatus (Turner) J.Agardh	1999-10-09	Apúlia, Portugal
(O)	1152	Gymnogongrus crenulatus (Turner) J.Agardh	2000-09-29	Buarcos Bay, Portugal
(O)	1199	Gymnogongrus crenulatus (Turner) J.Agardh	2001-10-18	Buarcos Bay, Portugal
(O)	1295	Gymnogongrus crenulatus (Turner) J.Agardh	2002-02-15	Buarcos Bay, Portugal
(O)	1383	Gymnogongrus crenulatus (Turner) J.Agardh	2001-08-07	Albufeira, Portugal
(O)	1401	Gymnogongrus crenulatus (Turner) J.Agardh	2002-06-12	Aguda, Portugal
(O)	1436	Gymnogongrus crenulatus (Turner) J.Agardh	2002-07-13	Lavadores, Portugal
(O)	1536	Gymnogongrus crenulatus (Turner) J.Agardh	2002-08-09	Polvoeira (Nazaré), Portugal
(O)	1587	Gymnogongrus crenulatus (Turner) J.Agardh	2003-04-05	Consolação, Portugal
(O)	1777	Gymnogongrus crenulatus (Turner) J.Agardh	2003-04-17	Consolação, Portugal
(O)	1812	Gymnogongrus crenulatus (Turner) J.Agardh	2003-05-12	Légua, Portugal
(O)	1848	Gymnogongrus crenulatus (Turner) J.Agardh	2003-05-30	Légua, Portugal