Hydrozoa |
Anthoathecata |
Protohydridae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; depth range 2 - 6 m (Ref. 120471). Polar
Arctic and Northeast Atlantic: Alaska and Svalbard.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Found interstitial in sea ice (Ref. 80490).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Anthoathecata are mostly colonial A-form hydroids. Life cycle: The zygote develops into planula inside the gonophore and is later released as an actinula which metamorphoses into polyp stage.
Census of marine life's education and outreach team 2008 Census of Marine Life: 2007/2008 highlights report. University of Rhode Island Graduate School of Oceanography's Office of Marine Programs. (Ref. 80485)
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
