Sagittoidea |
Phragmophora |
Eukrohniidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
Batypelagisk; djupintervall 1000 - 2000 m (Ref. 1643). Polar; 60°S - 66°S, 56°W - 85°E
Antarctic Ocean: Atlantic and Indian oceans.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 0.9 cm BL hane/ej könsbestämd; (Ref. 3682)
Depth based on type locality (Ref. 3682); to be replaced with a better reference. Bathypelagic (Ref. 116364).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | 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 |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
