Florideophyceae |
Ceramiales |
Ceramiaceae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile. Tropical
Indian Ocean: from the Arabian Sea south to South Africa, east to Sri Lanka.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 15.0 cm TL male/unsexed; (Ref. 82093)
Thalli are erect, to 15 cm high, pinnately branched up to 5 orders and lack a percurrent main axis. The holdfast is densely rhizoidal. Axes are corticated from close to the apices with corticating filaments arising from the periaxial cells, approximately 12-14 cells proximal to the apex. Proximal axial cells are 450-500 μm wide and 240-270 μm long. Each axial cell bears a single lateral in a distichous-alternate pattern. Determinate branchlets are ecorticate, curved upwards and up to 12 cells long. The basal 3 cells of a determinate lateral bear each a short adaxial side branch, the fourth to the ninth cell bear an arched abaxial branchlet and the remaining cells remain unbranched, except for the ultimate and penultimate cells, which bear 1-2 (-4) spine-like cells. Indeterminate branchlets are formed irregularly and repeat the branching pattern of the main axes. Tetrahedrally divided tetrasporangia (60 μm long, 40-50 μm wide) are borne laterally on cells of the ultimate branchlets. Gametophytes were not observed (Ref. 82093).
Euptilota fergusonii is distinguished from other Euptilota species inhaving spine-like cells at the tips of the determinate laterals. Thalli are erect, to 15 cm high, pinnately branched up to 5 orders and lack a percurrent main axis (Ref. 82093).
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: Version 2024-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
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More information
Trophic EcologyFood items
Diet
Food consumption
Ration
Predators
Population dynamicsGrowthAge/SizeLength-weightLength-lengthLength-frequenciesMass conversionRecruitmentAbundance Life cycleReproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics
Human RelatedAquaculture profile
Stamps, Coins Misc.
Internet sources
Estimates based on models
Vulnerability
Low vulnerability (10 of 100).