Common names from other countries
Classification / Names / Names
俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range
生态学
; 深度上下限 63 - 799 m (Ref. 7414).
Western Indian Ocean and the Antarctic.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm Max length : 6.0 cm COLD 雄鱼/尚未辨别雌雄; (Ref. 7414)
Colonies monosiphonic, consisting of a mass of interwoven, anastomosing branches up to 60mm in diameter; without distinct main stem. Hydrothecae arranged in decussate pairs, forming four longitudinal rows of hydrothecae. Hydrothecae immersed into the branches for ca one-third of their volume. Hydrotheca cylindrical in lateral view, curving slightly outwards; in frontal view slightly inflated basally. Adcauline hydrothecal wall largely adnate to internode, but with a distinct free portion; this part straight or slightly concave. Abcauline hydrothecal wall straight basally, but becoming concave distally. Hydrothecal aperture circular, large and slightly tilted downwards. Rim of hydrotheca even and frequently with renovations; diaphragm mushroom-shaped, provided with two abcauline perisarc projections pointing to the lumen of hydrotheca. Male and female gonothecae present, both originating at hydrothecal base. Female gonotheca urn-shaped, provided with a wide neck with distal,
circular aperture; gonothecal wall with a few transverse striae at base of neck. Male
gonotheca fusiform, with a short neck, distally having a small, circular aperture.
Minimum depth from Ref. 92901. Species inhabits bottoms of mud or mud with detritus; sand, pebbles and stones. It is used as a substratum by other hydroids (Ref. 7414).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Throughout the year, with exemption on winter times. Fertile colonies were collected in February, May, June and December.
主要参考文献
参考文献 | 合作者 | 合作者
Peña Cantero, A.L. and W. Vervoort. 2003. (Ref. 7414)
世界自然保护联盟红皮书 (Ref. 130435)
Not Evaluated
Not Evaluated
对人类的威胁
人类利用
| FishSource |
工具
网络资源
Estimates based on models
Preferred temperature
(Ref.
115969): -1.7 - 1.9, mean -0.5 (based on 326 cells).
脆弱性
Low vulnerability (10 of 100).
