Pycnogonida |
Pantopoda |
Pycnogonidae
Environment: milieu / climate zone / ระดับความลึก / distribution range
นิเวศวิทยา
. Subtropical
Southwest Peninsula: New Zealand.
Length at first maturity / ขนาด / Weight / Age
วัยเจริญพันธุ์: Lm ? range ? - ? cm
Trunk ovoid with very short lateral processes. Trunk with three low dorsomedian bulges. Proboscis a plain, slightly inflated cylinder tapering distally to small mouth area. Abdomen short, laterally inflated. Ovigers entirely lacking in both sexes. Legs very robust, coxae shorter than their diameters, femur with proximoventral bulge and dorsodistal knob and bulge. Second tibia only slightly longer than the width. Tarsus triangular, with few sole spines. Propodus well-curved, wider at base than distally, with only distal sole spines, claw very robust, about 0.6 of propodal length. Without auxiliary claws. It cannot be predicted with any certainty whether or not this species has male ovigers, but if not, it joins the other species in this genus which have auxiliary claws, however small, and these must serve to separate these two otherwise similar members of the New Zealand fauna (Ref. 9).
Depth estimate based on Family (Ref. 9).
Life cycle and mating behavior
วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | Eggs | ความดกของไข่ | 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. (อ้างอิง 9)
IUCN Red List Status
(อ้างอิง 130435: Version 2025-1)
CITES status (อ้างอิง 108899)
Not Evaluated
CMS (อ้างอิง 116361)
Not Evaluated
Threat to humans
Human uses
| FishSource |
เครื่องมือ
ข้อมูลเพิ่มเติม
นิเวศวิทยาเขตร้อนFood items (preys)
องค์ประอบของอาหาร
การบริโภคอาหาร
ผู้ล่า
Population dynamicsการเจริญเติบโต
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
อุดมสมบรูณ์
Life cycleการสืบพันธุ์วัยเจริญพันธุ์ความดกของไข่การวางไข่EggsEgg developmentLarvae Human RelatedStamps, coins, misc.
แหล่งที่มาจากอินเตอร์เน็ต
Estimates based on models
Price category
Unknown.
