Pycnogonida |
Pantopoda |
Ammotheidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 1570 - 2250 m (संदर्भ 2157). Temperate
Northeast Pacific: USA.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ? range ? - ? cm
Species without dorsomedian trunk tubercles and with very low, blind, ocular tubercle. Proboscis massive, constricted medially and distally; chelifores small. Palps of 9 segments, very setose distally as are distal segments of male oviger. Male legs with crowded filed of lateral and ventral setae on third coxae and proximally on femorae while legs of females lack dense fields of setae. Propodi bear similar sole and heel spines with no major or larger spines (Ref. 2157, p. 7).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae
Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.
Child, C.A. 1994 Deep-sea Pycnogonida from the temperate west coast of the United States. Smithsonian Contributions to Zoology 556:1-23. (संदर्भ 2157)
IUCN Red List Status
(संदर्भ 130435: Version 2025-1)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
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): 2.1 - 2.2, mean 2.2 (based on 5 cells).
Price category
Unknown.
