Polyplacophora |
Chitonida |
Tonicellidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 40 m (Ref. 289). Temperate
Eastern Pacific: Alaska, USA, Canada and Mexico.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 2.5 cm TL hane/ej könsbestämd; (Ref. 296)
Girdle: Sandy with a minute spiculose fringe; opposite all or some sutural areas there is a long hair with fine recurved short hairs along its stem; Cream with orange or red blotches in color. Valves: Appear smooth to the naked eye but are minutely granular under a lens; scarlet red in color with 4 small blue spots on the posterior edge or mottled olivaceous green and maroon (Ref. 296).
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): 8.9 - 15.6, mean 10.3 (based on 52 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
