Florideophyceae |
Gracilariales |
Gracilariaceae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; depth range 0 - 7 m (Ref. 102160). Tropical
Indo-Pacific, Atlantic Ocean and the Mediterranean.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Thalli erect, cartilaginous, greenish purple, with a discoid holdfast. Primary and secondary branches prominent, mostly arcuate, terete throughout, slightly constricted at the base. Branching on the main axes generally secund. Terminal branches giving rise to 2 or 3 short, stubby, spinose branchlets at their distal portions. Thalli up to 10 cm in height (Ref. 80758).
Used for human consumption: source of agar; used in wastewater purification; contains growth regulator substances similar to auxin, gibberellin, and cytokinin; used as manure for coconuts and coffee bushes in Hainan, India, and Sri Lanka (Ref. 80758). Grows in shallow subtidal areas attached to coral rocks and fragments, and shells (Ref. 80758).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Guiry, M.D. and G.M. Guiry. 2009. (Ref. 80701)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
Fisheries: commercial
| FishSource |
Tools
More information
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 18.9 - 29.3, mean 28 (based on 3744 cells).