Demospongiae | Dictyoceratida
Environment: milieu / climate zone / depth range / distribution range
Sessile; depth range 5 - 80 m (Ref. 363). Subtropical
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 30.0 cm WD male/unsexed; (Ref. 363)
Massive sponge; on surface equipped with conules very irregularly dispersed. A thin and generally smooth ectosome covers the surface gaps. Sponge: traversed great gaps mÃ©andriformes. Rare primary fibers: 0.0060 to 0.01 cm diameter; formed by the anastomoses of several fibers at their end in the conules; and containing foreign bodies. Secondary fibers: 0.0025 to 0.003 cm diameter. Coloring: darkish gray with yellowish on the surface, often brown white orange inside (Ref. 363).
Importance: It is the principal species currently exploited. The essence of the production comes from Tunisia. It is used for the domestic uses, the toilet and certain industries (Ref. 363). Common between 5 and 30 m of depth, would go down up to 80 m to Libya (Ref. 363). Members of the class Demospongiae are hermaphroditic. Life cycle: The zygote develops into parenchymella larva (free-swimming) before settling down on a substrate where it grows into a young sponge (Ref. 833).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Demospongiae are hermaphroditic. Life cycle: The zygote develops into parenchymella larva (free-swimming) before settling down on a substrate where it grows into a young sponge.
Vacelet, J. 1987. (Ref. 363)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
Fisheries: highly commercial
| FishSource |
Estimates of some properties based on models
): 15.2 - 21.6, mean 18.8 (based on 158 cells).
Low vulnerability (20 of 100)