Sagittoidea |
Phragmophora |
Eukrohniidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Bathypelagic; depth range 1000 - 4000 m (Ref. 3682). Temperate; 36°N - 33°N, 137°E - 149°E
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Northwest Pacific.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 1.5 cm BL male/unsexed; (Ref. 1643)
Depth based on type locality (Ref. 3682); to be replaced with a better reference. Benthopelagic; Mean latitude of occurrence = 34.5 (N); No known presence in China (Ref. 125708).
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).
Kapp, H. and W. Hagen 1985 Two new species of Heterokrohnia (Chaetognatha) from Antarctic Waters. Polar Biol. 4:53-59. (Ref. 1643)
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 DistributionCountries
FAO areas
Ecosystems
Occurrences
Introductions
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
