Polyplacophora |
Chitonida |
Mopaliidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 100 m (Ref. 289). Temperate
Northeast Pacific, Atlantic ocean and Arctic Ocean: Alaska and USA. Temperate to polar.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 6.0 cm TL male/unsexed; (Ref. 289)
Depth: Intertidal to 100 m. Habitat: On rocks (Ref. 289). Body: Oval; with the valves nearly covered by a brown skin continued upward from the girdle, but their outlines are plainly visible through this integument. Small exposed portion of each median valve: Broadly heart-shaped and situated at the posterior margin of each valve; it is sculptured with strong concentric grooves and a more or less distinct granulation. Girdle: Thin, smooth with sparsely scattered small bunches of hairs (Ref. 297). Known to occur on bathyal, infralittoral and circalittoral of the Gulf and estuary (Ref. 87872).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sexes are separate but they are indistinguishable externally. Fertilization is external and usually the eggs are shed into the water.
Burghardt, G. and L. Burghardt 2006 West Coast Chitons. A Gallery of Worlwide Chitons: http://home.inreach.com/burghart/wcoast.html[accessed20/01/06] (Ref. 296)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 0.2 - 9.1, mean 2.2 (based on 1202 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
