Polyplacophora |
Chitonida |
Tonicellidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 115 m (Ref. 289). Temperate
Pacific Ocean.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 5.1 cm TL male/unsexed; (Ref. 296)
Girdle: Microscopically granulated showing concentric growth lines. Lateral areas: Scarcely definable by a slightly raised wide rib. Valves: Variable in design and in color; range from orange-red to deep blood reds or lavenders with white zigzag markings. Markings: Edged in blue in live specimens but the blue color fades quickly in alcohol or in dried specimens. Girdle in alcohol: Cream colored, fading from orange in live specimens (Ref. 296).
Intertidal to 115 m (Ref. 289). Abundant in the intertidal zone, and, in some localities, can exceed 50 individuals per square meter of surface area. Lives on cobbles, boulders, and bedrock encrusted with pink coralline algae (Lithothamnion spp.) or unidentified rust-brown encrusting bryozoans (Ref. 290). Herbivorous, feeding primarily on encrusted red coralline algae (Ref. 312).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Reproduction: The annual spawning cycle may be cued by spring phytoplankton (Ref. 290).
Dickson, R. 2002. (Ref. 290)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvaeLarval dynamics Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 5.7 - 15.4, mean 9.7 (based on 344 cells).
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.