Hydrozoa |
Leptothecata |
Halopterididae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; depth range 696 - 997 m (Ref. 8774). Subtropical
Northeast Atlantic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 35.0 cm OT male/unsexed; (Ref. 8774)
Height of colony is up to 350 mm (Ref. 8774). Found in moderately deep to deep waters of tropical, temperate and northern parts of Eastern Atlantic (Ref. 8774).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Leptothecata include L-form hydroids. Life cycle: The zygote develops into planula and later into polyp then into free-swimming medusa.
Desbruyères, D., M. Segonzac and M. Bright (eds.) 2006 Handbook of Deep-sea Hydrothermal Vent Fauna. Second completely revised edition. Denisia 18:544 pp. (Ref. 8774)
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
Preferred temperature
(Ref.
115969): 7.3 - 9.3, mean 8 (based on 14 cells).
Fishing Vulnerability
Low vulnerability (25 of 100).