Polychaeta |
Terebellida |
Ampharetidae
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 26 - 1957 m (參考文獻 96345). Polar
North Atlantic: Greenland and Iceland.
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Body short; longest complete specimen about 11 mm long and 0.5 mm wide. Body tapering
towards posterior end. No eyespots observed. Long buccal tentacles, with long papillae. Four pairs of long branchiae, with dense tufts of cilia, arranged in two groups very close to each other. No paleae. Fourteen thoracic chaetigers; first two chaetigers with slightly less developed notopodia and bristles; posterior twelve thoracic chaetigers also with neuropodia and uncini. Sixteen abdominal segments with uncinigerous neuropodia, first two abdominal uncinigerous tori of thoracic-type lacking dorsal cirri and posterior 14 abdominal neuropodia of different shape and with dorsal cirri. Rudimentary notopodia absent. Abdominal uncini similar to thoracic ones, with 2 vertical rows of 3 teeth above rostrum. Pygidium with two lateral cirri and about 10 capitate papillae. Colour in alcohol pale yellow.
A surface deposit feeder (Ref. 96435).
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 Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.
主要參考資料
參考文獻 | 合作者 | 合作者
Parapar, J., G.V. Helgason, I. Jirkov and J. Moreira 2012 Polychaetes of the genus Ampharete (Polychaeta: Ampharetidae) collected in Icelandic waters during the BIOICE project. Helgoland Marine Research 66(3):331-344. (參考文獻 96435)
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
Harmless
人類使用
FAO - Publication: search | FishSource |
工具
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) |
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