Pycnogonida |
Pantopoda |
Pycnogonidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 7 - 419 m (Ref. 2153). Subtropical
Northwest Pacific: Japan and Alaska.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 0.9 cm TRKL hane/ej könsbestämd; (Ref. 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
Könsmognad | Reproduktion | Lek | 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. 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. (Ref. 2153)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
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.
