Pycnogonida |
Pantopoda |
Pycnogonidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 7 - 419 m (Αναφ. 2153). Subtropical
Northwest Pacific: Japan and Alaska.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 0.9 cm TRKL αρσενικό/απροσδιόριστο; (Αναφ. 2153)
A small species with trunk length of only 8.5 to 9.0 mm. Trunk of adult without conspicuous dorsomedian tubercles, present and more conspicuous in juveniles, lateral processes closely crowded, almost touching, without adornment. Proboscis barrel-shaped, tapering distally, only as long as anterior 2 trunk segments. Abdomen short, squared at tip in dorsal view. Ovigers 9 segmented, very small. Legs moderately short, robust (Ref. 2153, p. 16).
Shelf to upper slope (Ref. 19).
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. 1995 Pycnogonida of the Western Pacific Islands XI. Collections from the Aleutians and other Bering Sea islands, Alaska. Smithsonian Contributions to Zoology 569:1-33. (Αναφ. 2153)
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
Τροφική ΟικολογίαFood items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
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): 2.7 - 12.9, mean 8.1 (based on 21 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.