Pycnogonida |
Pantopoda |
Nymphonidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 3 - 3227 m (Αναφ. 1680). Polar
Southwest Pacific and Antarctic: Antarctica, South Orkney, South Shetland and New Zealand.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm
Trunk and lateral processes slender. Glabrous. Lateral processes well separated, ocular tubercle and oviger implantations at anterior of first lateral processes. Neck long, abdomen short. Chelifores slender, long, chelae with many crowded teeth. Palps as in N. hiemale. Ovigers very similar in both species but strigilis of this species with more denticulate spines per segment. Legs long, slender, with few short setae. Tarsus slightly shorter than propodus, both with short sole spines only, claw slender, well curved, auxiliary claws about half main claw length (Ref. 9).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | 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. 1998 The marine fauna of New Zealand: Pycnogonida (sea spiders). NIWA Biodiversity Memoire 109. National Institute of Water and Atmospheric Research (NIWA). Washington, D.C. 20530, USA. 71 p. + Figure 2A-G, 3A-F, 4, 5. (Αναφ. 9)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Population dynamicsΑύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycleΑναπαραγωγήΓεννητική ΩρίμανσηΓονιμότηταΓεννοβολίαEggsEgg developmentLarvae PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): -1.9 - 1.9, mean 0.4 (based on 1608 cells).
Price category
Unknown.