Polyplacophora | Chitonida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 40 m (Ref. 290). Temperate
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 13.0 cm TL male/unsexed; (Ref. 290)
Girdle: Black leathery covering almost the entire dorsal area. Dorsal ridge area of each valve: small portion; left exposed (Ref. 296).
Surf-zone to 40 m. Usually found on stony or rocky bottoms (Ref. 290); in the middle intertidal zone from Alaska to Point Conception; North of Santa Barbara; also on rocky shore with heavy wave action (Ref. 312). Herbivorous, feeding primarily on red and green algae and benthic diatoms (Ref. 312). 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. 296)
IUCN Red List Status (Ref. 120744)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 6.1 - 10.9, mean 8.9 (based on 94 cells).
Low vulnerability (10 of 100)