Pycnogonida |
Pantopoda |
Nymphonidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 11 - 247 m (संदर्भ 2153). Subtropical
Eastern Pacific: Alaska and USA.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ? range ? - ? cm
Short conspicuous spines on trunk, chelifore scapes, and proximal leg segments, very short tarsus in conjunction with large species size, and subequal size of major oviger segments. Second segment of palp longer than third and fifth is only slightly longer than fourth. Chela fingers placed synaxially and shorter than palm. Propodus short, very curved, with four heel spines and few sole spines. Claw very long in relation to short propodal length and auxiliaries are less than half propodal length (Ref. 2153, p. 23).
Shelf (Ref. 19).
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. 1996 The Pycnogonida types of William A. Hilton. II. The remaining undescribed species. Proceedings of the Biological Society of Washington 109(4):677-686. (संदर्भ 2117)
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): 5.2 - 8.5, mean 6.1 (based on 48 cells).
Price category
Unknown.
