Gastropoda |
Nudibranchia |
Facelinidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 0 - 28 m (Αναφ. 865). Subtropical
Pacific Ocean and the Arctic. Subtropical to polar.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 7.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 844); common length : 8.0 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 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
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | 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 Phylum Mollusca. Marine Science Institute. Http://216.239.51.104/search?q=cache:EEiLeA0OeAMJ:www2.ucsc.edu/simp/guide.pdf+Nuttalina+californica&hl=tl&gl=ph&ct=clnk&cd=8 [accessed 20/01/06] (Αναφ. 312)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Population dynamicsΑύξησηMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionΑφθονία Life cycleΑναπαραγωγήΓεννητική ΩρίμανσηΓονιμότηταΓεννοβολίαEggsEgg developmentLarvae PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): 5.1 - 18.7, mean 9.7 (based on 888 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.