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相關魚種
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Staurotheca - 魚種在
Sertulariidae - - Classification / Names -
- Sertulariidae
- Leptothecata
- Hydrozoa
- Chordata
- Animalia
- 魚種在
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Staurotheca undosiparietina (Stepan'yants, 1979)
| Native range | All suitable habitat | Point map | Year 2050 |
|
| This map was computer-generated and has not yet been reviewed. |
| Staurotheca undosiparietina AquaMaps Data sources: GBIF OBIS |
Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS
Hydrozoa | Leptothecata | Sertulariidae
Environment: milieu / climate zone / depth range / distribution range 生態學
; 深度上下限 74 - 700 m (Ref. 7414).
分布 國家 | FAO區域 | 生態系 | 發現紀錄 | 簡介
Antarctic Atlantic: Western Antarctica and South Georgia.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm Max length : 32.0 cm H 雄魚/尚未辨別雌雄; (Ref. 7414)
簡短描述 型態特徵
Stems up to 32 cm high, polysiphonic over a great extension. Main stem distinct, deprived of branches basally. When branching becomes frequent, main stem becoming indistinct. Branching scarce, irregular and in several planes. Hydrothecae present over entire colony, though inconspicuous in polysiphonic parts. Hydrothecae arranged in verticils of three to five hydrothecae forming 6 to 10 longitudinal rows. Hydrothecae immersed into the branches for approximately half of their volume and adnate for almost full adcauline length; free adcauline wall inconspicuous. In lateral view hydrotheca cylindrical and slightly abcaudally directed; abcauline wall slightly concave. In frontal view maximum diameter at hydrothecal base, slightly decreasing upwards. Hydrothecal aperture circular and tilted downwards, forming an acute angle with long axis of stem; rim even and sometimes with renovations. Hydrothecal diaphragm mushroom-shaped, though sometimes abcauline projections absent. Male and female gonothecae present, both originating at the hydrothecal base. Female gonotheca oval, provided with a distal, laterally depressed aperture due to the presence of one adcauline cusp and one, better developed, abcauline cusp. Male gonotheca fusiform, with a small, circular aperture at the end of an inconspicuous neck. Both male and female gonothecae with abcauline keel.
Length based on stem height. A shelf species found at depths of 74 to 700 m on rocks, gravel and mud. It is used as a substratum by other hydroids (Ref. 7414).
Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Fertile colonies were collected in February, September, November and December. Fertile throughout much of the year, except during the winter months.
主要參考資料
參考文獻 | 合作者 | 合作者
Peña Cantero, A.L. and W. Vervoort. 2003. (Ref. 7414)
IUCN 瀕危狀態 (Ref. 130435)
CITES狀態 (Ref. 108899)
Not Evaluated
CMS (Ref. 116361)
Not Evaluated
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Estimates based on models
Preferred temperature
(Ref. 115969): -0.2 - 1.9, mean 0.8 (based on 16 cells).