Common names from other countries
Classification / Names / Names
ชื่อสามัญ | ชื่อพ้อง | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range
นิเวศวิทยา
; ระดับความลึก 63 - 799 m (Ref. 7414). Polar
Western Indian Ocean and the Antarctic.
Length at first maturity / ขนาด / น้ำหนัก / Age
Maturity: Lm ? range ? - ? cm Max length : 6.0 cm COLD เพศผู้/กระเทย; (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
วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | เซลสืบพันธ์ของเพศเมีย(ไข่) | ความดกของไข่ | ตัวอ่อน
Throughout the year, with exemption on winter times. Fertile colonies were collected in February, May, June and December.
Peña Cantero, A.L. and W. Vervoort. 2003. (Ref. 7414)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
เครื่องมือ
ข้อมูลเพิ่มเติม
ชื่อสามัญชื่อพ้องผู้ล่าการสืบพันธุ์วัยเจริญพันธุ์การวางไข่ความดกของไข่เซลสืบพันธ์ของเพศเมีย(ไข่)Egg development
Age/SizeการเจริญเติบโตLength-weightLength-lengthสัณฐานวิทยาตัวอ่อนอุดมสมบรูณ์
แหล่งที่มาจากอินเตอร์เน็ต
Estimates based on models
Preferred temperature
(Ref.
115969): -1.7 - 1.9, mean -0.5 (based on 326 cells).
Vulnerability
Low vulnerability (10 of 100).
