Gastropoda |
Nudibranchia |
Dironidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 28 m (Ref. 865). Temperate
Pacific Ocean. Subtropical to boreal.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 18.0 cm TL male/unsexed; (Ref. 822); common length : 4.0 cm TL male/unsexed; (Ref. 822)
Assumed maximum and common length from Ref. 822.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | 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.
Debelius, H. 2001. (Ref. 844)
IUCN Red List Status (Ref. 130435: Version 2024-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items
Diet
Food consumption
Ration
Predators
Population dynamicsGrowth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvaeLarval dynamics Human RelatedAquaculture profile
Stamps, Coins Misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 7.6 - 17.9, mean 10.7 (based on 569 cells).
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.