Pycnogonida |
Pantopoda |
Pycnogonidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Mức độ sâu 7 - 419 m (Tài liệu tham khảo 2153). Subtropical
Northwest Pacific: Japan and Alaska.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ? range ? - ? cm Max length : 0.9 cm TRKL con đực/không giới tính; (Tài liệu tham khảo 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
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | 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. (Tài liệu tham khảo 2153)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Human uses
| FishSource |
Các công cụ
Thêm thông tin
Sinh thái dinh dưỡngFood items (preys)
Thành phần thức ăn
Thành phần thức ăn
Các động vật ăn mồi
Population dynamicsSự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
Life cycleSự tái sinh sảnChín muồi sinh dụcSự sinh sảnĐẻ trứngEggsEgg developmentLarvae PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
Các nguồn internet
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.
