Sagittoidea |
Phragmophora |
Spadellidae
Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
. Temperate; 26°N - 23°N, 124°E - 127°E
Northwest Pacific: Japan.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ? range ? - ? cm Max length : 0.1 cm BL جنس نر / بدون خواص جنسي; (مرجع )
Species is presently the smallest known species of the phylum (Ref. 1719). Mean latitude of occurrence = 24.5 (N); No known presence in China (Ref. 125708).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
Members of the phylum Chaetognatha are hermaphroditic. Mating behavior: A preliminary visual signaling behavior for species recognition is observed to prevent predation. Life cycle: Eggs directly develop into miniature adults (hatchlings).
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Casanova, J.-P. and Y. Perez 2000 A dwarf Spadella (Chaetognatha) from Bora Bay (Miyako Island, Japan). Cahiers de Biologie Marine 41(2):137-141. (مرجع 1719)
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
Fishing Vulnerability
Low vulnerability (10 of 100).
طبقه قيمت
Unknown.
