Demospongiae |
Haplosclerida |
Callyspongiidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile. Temperate
Southwest Pacific: Kermadec Islands.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Massive. Well-developed oval or rounded oscula terminating short fistular processes on the upper surface. Smooth surface, harsh texture. Color: dirty-yellow when dry. Internal skeleton: approximately rectangular mesh; fibres usually stronger longitudinally than transverse; loosely cored with irregularly arranged strand of spicules. Spicules few on the transverse fibres. Dermal skeleton: darker, forming a polygonal network; meshes broken up by finer, irregular fibers in lighter color; spicules never polyserial, but is more numerous in the secondary fibres. Spicules: all oxea, straight or slightly curved (Ref. 88951).
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.
Kirk, H.B. 1911 Sponges collected at the Kermadec Islands by Mr. W.R.B. Oliver. Transactions and Proceedings of the New Zealand Institute 43: 574-581, pl. XXVII. (Ref. 88951)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
