Polyplacophora |
Chitonida |
Ischnochitonidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 100 m (Ref. 290). Temperate
Pacific Ocean: Alaska, Mexico, Canada and northern Japan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 5.1 cm TL male/unsexed; (Ref. 296)
Girdle: Medium wide with smooth, compact, solid, oval scales. Mucro: Central and low. Central areas: Narrow, parallel riblets with faint netting between. Lateral areas: Sharply defined having radian rows of pustules. Tail valve: Radially riblets posterior of murco and netting anteriorly. Head valve: Radially ribbed. Color of shell: Ranges from orange-red to claret-red or dull green sometimes with white markings. Girdle color: Similar in color to the valves (Ref. 296).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Polyplacophora are mostly gonochoric. Life cycle: Eggs hatch into lecitotrophic planktonic trocophore larvae (no veliger stage) which later metamorphose and settle on the bottom as young adults.
Burghardt, G. and L. Burghardt. 2006. (Ref. 296)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 5.7 - 21.2, mean 12.2 (based on 504 cells).
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.