Polychaeta |
Aciculata |
Myzostomidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 49 - 567 m (संदर्भ 3249). Polar
Antarctica.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ? range ? - ? cm Max length : 0.2 cm WD पुल्लिंग / अलिंग; (संदर्भ )
Maximum length based from disc diameter, right and left caudal processes (omitting terminal cirri) .244 and .312 cm long, respectively.
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae
Members of the class Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.
Grygier, M.J. 1989 Three new species of Myzostoma (Myzostomida). Proceedings of the Biological Society of Washington 102(3):793-804. (संदर्भ 3249)
IUCN Red List Status
(संदर्भ 130435: Version 2025-1)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
साधन
अधिक जानकारी
Trophic EcologyFood items (preys)
संघटक आहार
आहार खपत
परभक्षी
Population dynamicsबाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycleपुनरुत्पत्तिपरिपक्व अवधिFecundityमछलीऔ का अंडे देनाEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
इंटरनेट स्रोत
Estimates based on models
Preferred temperature
(Ref.
115969): -1.7 - 1, mean -0.9 (based on 184 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
