Pycnogonida |
Pantopoda |
Nymphonidae
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
Benthic; 深度上下限 0 - 4136 m (參考文獻 1680). Polar
Southeast Pacific, Western Atlantic, and Antarctic.
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Leg span: 2 - 3 cm, a tall ocular tubercle with prominent eyes, and closely crowded lateral processes which usually, along with the trunk, have long dorsal spines. Spines are also carried on the chelifore scape and in rows along the leg. It has a short neck, crowded with a bulbous oviger base on each side. The male ovigers have distally inflated fifth and sixth segments which are often collapsed. The tarsus, with strong distal spines, is usually as long as or longer than the propodus which has a short main claw and vestigial or missing auxiliary claws. A wide range of variations occur among the many specimens of this species. This is attested to by its several synonyms. This is the genotype of a group of 20 predominantly Antarctic species which belong to a discrete assemblage called the australe group (Ref. 156). It shares the diagnostic characters enumerated above with the others and forms one of the groups into which this cumbersome genus must be divided if any sense is to be made of trying to separate its multitude of species (Ref. 9).
Maximum depth from Ref. 87394. Found to have hydroid colonies grasped in its chelifores (Ref. 121217).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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.
主要參考資料
參考文獻 | 合作者 | 合作者
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. (參考文獻 9)
IUCN 瀕危狀態
(參考文獻 130435: Version 2025-2 (Global))
CITES狀態 (參考文獻 108899)
Not Evaluated
Not Evaluated
對人類具威脅
人類使用
FAO - Publication: search | FishSource |
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更多資訊
營養生態學食物項目（獵物）
食性組成
食物消耗量
捕食者
人口動態成長
最大年齡/尺寸
長度重量比
長度關係
長度-頻率
質量轉換
豐度
網路資源
基於模型的估計
釣魚的脆弱性
(參考文獻 71543) |
(0 of 100). |
價格種類
(參考文獻 80766): |
Unknown. |
