Sagittoidea |
Phragmophora |
Spadellidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthopelagic. Subtropical; 36°N - 32°N, 128°E - 142°E
Northwest Pacific: Japan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 0.4 cm BL male/unsexed; (Ref. 3682)
Benthopelagic; Mean latitude of occurrence = 34 (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).
Casanova, J.-P. 1993. (Ref. 3644)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Tools
More information
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
Internet sources
Estimates based on models
Vulnerability
Low vulnerability (10 of 100).