Gastropoda |
Nudibranchia |
Facelinidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 28 m (Ref. 865). Subtropical
Pacific Ocean and the Arctic. Subtropical to polar.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm Max length : 7.0 cm TL hane/ej könsbestämd; (Ref. 844); common length : 8.0 cm TL hane/ej könsbestämd; (Ref. 312)
Found in oyster beds in bays in low to subtidal zones. Carnivorous; preys on hydroids, small sea anemones, bryozoans, worms, small crustacea, tiny clams, and even dead animals. Does not digest stinging capsules (nematocysts) of their prey. Instead the nematocysts are moved to the tip of the cerata and incorporated into the creature's own defense system (Ref. 312).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Members of the order Nudibranchia are simultaneous hermaphrodites. Mating behavior: Both individuals darts their penis toward each other to induce one to act as a male and the other as the female. The victorious one to penetrate the body wall is the dominant male. Life cycle: Eggs are deposited on a substratum where they develop and hatch into (planktonic) vestigial veliger larval stage and further grow as adults.
Gallivan, G. and J. Danforth. 1999. (Ref. 312)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionRekryteringAbundans Life cycleReproduktionKönsmognadFecundityLekEggsEgg developmentLarvaeLarvdynamik Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 5.1 - 18.7, mean 9.7 (based on 888 cells).
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.