Polyplacophora | Chitonida
Environment / Climate / Range
Benthic; depth range 0 - 600 m (Ref. 289). Temperate
Northern Atlantic, Pacific Ocean and the Arctic Ocean: Europe, USA, Scotland and Sea of Japan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 1.3 cm TL male/unsexed; (Ref. 281)
Body: Oblong; moderately elevated. Valves: Dorsal surface, smoothish except for irregular concentric growth ridges and a very fine sandpaper effect; Color, whitish, cream, light-orange or rarely marked with brown. Girdle: Resembles sandpaper, with tiny, closely packed gravelly scales (Ref. 281).
Habitat: On or under stones; rocky shores (Ref. 293). Found from subtidal to 100 m (Ref. 75835). 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 (Ref. 833).
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. 281)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 0.1 - 10.2, mean 2.8 (based on 2507 cells).
Low vulnerability (10 of 100)