Polyplacophora |
Callochitonida |
Callochitonidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 40 m (Ref. 289). Polar
Arctic and Northern Pacific. Polar to boreal.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 1.7 cm TL hane/ej könsbestämd; (Ref. 283)
Most common in oyster beds and among growths of algae (Ref. 290). Girdle: narrow; closely beset with minute spines but appearing almost smooth to the naked eye. Surface: Smooth but under a lens the valves are finely granulated in quincunx. Lateral areas: Scarcely defined. Valve color: Olive-brown, streaked, maculated or clouded with blue or chestnut (Ref. 297).
Depth based on occurrence record; to be replaced with better reference. Most common in oyster beds and among growths of algae (Ref. 290). Found from subtidal to 40 m (Refs. 289, 75835).
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.
Slieker, F.J.A. 2004 Frans Slieker Natural History Site. http://fjas.nl/ (Ref. 289)
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): 4.1 - 10, mean 7 (based on 108 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
