Hydrozoa |
Anthoathecata |
Hydractiniidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; freshwater; depth range 0 - 70 m (Ref. 64386). Subtropical; 78°N - 35°S, 116°E - 57°E
Pacific Ocean, Atlantic Ocean, Arctic, Mediterranean and Western Indian Ocean: from Dongsha Atoll, Taiwan to Mexico, north to Svalbard and east to Seychelles.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Maximum depth from Ref. 124669.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Reproduction occurs only in hydroid stage (Ref. 1663, p. 13).
Bouillon, J., C. Gravili, F. Pagès, J.-M. Gili and F. Boero 2006 An introduction to Hydrozoa. Mémoires du Muséum national d'Histoire naturelle 194:1-591. (Ref. 8278)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
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
Price category
Unknown.
