Sagittoidea |
Phragmophora |
Spadellidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthopelagic; depth range 1600 - 1600 m (Ref. 1808). Tropical; 39°N - 36°N, 34°W - 31°W
Mid-Atlantic Ridge.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 0.4 cm BL male/unsexed; (Ref. )
Benthopelagic; Mean latitude of occurrence = 37.5 (N); No known presence in China (Ref. 125708). Bentho-planktonic. Inhabits hydrothermal vents.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the phylum Chaetognatha are hermaphroditic. Mating behavior: A preliminary visual signaling behavior for species recognition is observed to prevent predation. Life cycle: Eggs directly develop into miniature adults (hatchlings).
Casanova, J.-P. and X. Moreau 2005 Calispadella alata n. gen., n. sp., the first chaetognath recorded from a hydrothermal vent site (Mid-Atlantic Ridge). Journal of Plankton Research 27(2):221-225. (Ref. 1808)
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
Fishing Vulnerability
Low vulnerability (10 of 100).
