Polyplacophora |
Callochitonida |
Callochitonidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
; تغييرات عمق 0 - 50 m (مرجع 290). Temperate
Eastern Pacific: Canada and Mexico.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ? range ? - ? cm Max length : 2.4 cm TL جنس نر / بدون خواص جنسي; (مرجع 290)
Body: Elongate oval. Tegmentum color: Variable, may be orange, dark red, greyish brown, with or without large patches of black; Some brightly colored specimens have tail valves that are completely black. Sculpture: Radiating, often branching rows of large granules on the head valve (30-36 rows) and lateral areas (5-8), the rows usually not reaching the apex. Central areas: Fine, close-set lines of granules, the lines becoming larger and further apart towards the outer margins of the valves. Postmucronal area: Scarce, scattered granules. Mucro: Submedian in younger specimens; subterminal in full-grown specimens. Girdle: Rather narrow, evenly orange-brown or greyish brown; with spicules of varying types and sizes; a marginal fringe of straight spicules (290). Valves: Range from bright orange with black tail valve (and white spot) to ashy green with same markings (Ref. 296).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | 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.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Dickson, R. 2002 Chitons of British Columbia. Royal British Columbia Museum. http://www.royalbcmuseum.bc.ca/nh_papers/chitonkey/intro.htm[accessed25/01/06] (مرجع 290)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2025-1)
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
Not Evaluated
خطر برای انسان ها
استفاده انسانی
| FishSource |
ابزارها
اطلاعات بيشتر
Trophic EcologyFood items (preys)
تركيب غذايي
مصرف غذايي
شکارچیان
Population dynamicsرشد
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversion
فراواني
Life cycleتولید مثلبلوغFecundityتخم ریزیEggsنمو تخمLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
منابع اينترنتي
Estimates based on models
Preferred temperature
(Ref.
115969): 8.7 - 28.2, mean 10.6 (based on 52 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
طبقه قيمت
Unknown.
