Pycnogonida |
Pantopoda |
Ammotheidae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
; Mức độ sâu 90 - 300 m (Tài liệu tham khảo 9). Tropical
Indo-West Pacific.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ? range ? - ? cm
Trunk: moderately long, completely segmented, glabrous. Lateral processes: well separated, armed with 1-2 dorsodistal setae. Cephalic segment: extending slightly dorsal to tiny chelifores, ocular tubercle at centre of segment, little taller than basal diameter, small eyes at mid-length. Proboscis: short, only about 1.5 times longer than cephalic segment, cylindrical, slightly tapered distally. Abdomen: moderately short, erect. Chelifores: very slender, short, chelae atrophied, armed with few short distal setae. Palps: 9-segmented, Achelia-like, with few ventral setae. Ovigers: 10 segmented, fourth segment longest, second segment longer than fifth, sixth segment with denticulate spine, strigilis segments with 1 -2 denticulate spines with small single denticles to larger spines with many lateral denticles. Leg: major segments with several short tubercles each with long feathered (with many lateral setules) seta. Propodus: short, well curved, claw long, robust, tiny auxiliaries present, shorter than basal claw diameter. Male characters known (Ref. 9).
Continental shelf, slope (Ref. 1456 and 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. 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. (Tài liệu tham khảo 9)
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): 9.6 - 22.9, mean 18.3 (based on 168 cells).
Price category
Unknown.
