Polyplacophora |
Chitonida |
Mopaliidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 20 m (Ref. 290). Subtropical
Eastern Pacific.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 5.8 cm TL hane/ej könsbestämd; (Ref. 296)
Girdle: Wide with an elongated extension at the head valve giving rise to common name of 'jockey-cap chiton.' Bristles: Sparsely scattered on this smooth fleshy girdle, heavier on the 'cap' area. Mucro: Posterior and depressed. Central areas: Smooth. Lateral areas: Raised and defined by wide diagonal rib and smooth. Whole surface of the valves: Marked with concentric growth lines. Color of valves: Variable in pink, green, blacks and mottled. Girdle: Cream colored, bright pink in life (Ref. 296).
Usually found in areas of moderate wave action or tidal flow, on the tops, sides, and bottoms of rocks, under ledges, and in crevices; in Oregon, often found in sea-urchin excavations in bedrock exposed to heavy surf (Ref. 290).
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): 7.1 - 18.6, mean 10.4 (based on 166 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
