Florideophyceae |
Gracilariales |
Gracilariaceae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 1 - 60 m (Ref. 102161). Tropical
Indian Ocean: from the Arabian Sea, including the Red Sea and the Persian Gulf, south to South Africa, including Aldabra Islands, Seychelles, Reunion and Madagascar, east to Sri Lanka, including Laccadive Islands, south to Western Australia, including Andaman and Nicobar Islands; Pacific Ocean: from China to the South China Sea, south to Queensland, Australia, including Guam, Northern Mariana Islands, Federated States of Micronesia, Solomon Islands and Fiji, and east to the Hawaiian Islands.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 10.0 cm TL hane/ej könsbestämd; (Ref. 83643)
Two forms are distinguished, depending on the type of habitat. In areas where the water is clear, calm, and exposed to full sunlight, the thalli are bright orange with branching dichotomous to tetrachotomous divaricate; branches distinctly divided into terete, subclavate to clavate segments, swollen at the distal end and constricted at the base. In areas where the water is turbid and the movement is moderate to strong, thalli are dark green to greenish brown, forming prostrate clumps on the substrate; branching irregularly subdichotomous to trichotomous to alternate; branches not distinctly divided into clavate segments except at the terminal portions and are shorter. Thalli up to 8 cm in height (Ref. 80758).
Used for human consumption and as a source of agar, but it contains poor quality agar; also used as manure for coconuts and cof fee bushes in Hainan, India, and Sri Lanka (Ref 80758). Attached to solid substrates such as coral fragments, shells, pebbles, stones, rocks, gravel, or mangrove roots, in clear to turbid waters. Usually found in protected portions of reef flats not exposed to the full impact of wave action (Ref. 80758).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Guiry, M.D. and G.M. Guiry 2009 AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 14 April 2009. (Ref. 80701)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
Fiskeri: kommersiell
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans Life cycleReproduktion
Könsmognad
Fecundity
Lek
Eggs
Egg development
Larvae
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 24.2 - 29.1, mean 28 (based on 1522 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
