Polyplacophora |
Chitonida |
Ischnochitonidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 20 m (Ref. 290). Subtropical
Eastern Pacific: Canada, USA and Mexico.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm Max length : 4.4 cm TL hane/ej könsbestämd; (Ref. 296)
Medium width girdle, with overlapping scales which are flat; larger at the valves and smaller at the margin of the girdle; deeply ridged with fine netlike sculpturing in between these ridges. Lateral areas: 5-8 rows of prominent beading. End valves: Radially beaded in ridges. Color of the valves: Olivaceous or gray; some have dark triangular blotches on the jugum. Girdle: Dark and light gray blotched (Ref. 296).
Depth based on occurrence record; to be replaced with better reference.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | 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 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 |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 10.4 - 18.2, mean 12.7 (based on 120 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.