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Leptothecata |
Sertulariidae
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; গভীরতার পরিসীমা 6 - 390 m (Ref. 7416). Polar
Circum-Antarctic.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm Max length : 5.0 cm WD পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 7416)
Mass-shaped colonies up to 5 cm diameter, without distinct main stem. Branching irregular, though sometimes with tendency for arrangement in one plane. Branches forming anastomosing stolons. Stem and branches divided into internodes by weakly marked, oblique nodes alternating in opposite directions. One hydrotheca per internode. Hydrothecae almost cylindrical, strongly abcaudally directed. Hydrotheca adnate to internode for approximately half its length, though usually adnate portion longer than free part. Adcauline wall with a distinct inflexion point where it becomes free. Free portion of adcauline hydrothecal wall slightly convex or straight. Abcauline wall concave. Cusps of hydrothecal aperture blunt and separated by shallow embayments. Species with dark coloured coenosarc.
Gonothecae ovoid, inserting at hydrothecal base. Gonothecal wall folded, forming a pattern of seven to ten rings. Gonotheca provided with a distal funnel-shaped neck bearing the gonothecal aperture.
Known at depths of 6 to 385 m on muddy bottoms and shingle, small rocks, gravel, mud, stones and composed of fragments of Bryozoans (Ref. 7416).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Found fertile colonies from January to March and July to December; materials collected in January and February.
Peña Cantero, A.L., A. Svoboda and W. Vervoort. 2002. (Ref. 7416)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
হাতিয়ার
আরো তথ্য
প্রচলিত নাম সমূহপ্রতিনাম সমূহশিকারী প্রাণী সমূহপ্রজনন পরিপক্কতা ডিম ছাড়া ডিম্বধারন ক্ষমতা ডিমসমূহEgg development
ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature
(Ref.
115969): -1.8 - -0.4, mean -1.4 (based on 481 cells).
Vulnerability
Low vulnerability (10 of 100).
Price category
Unknown.
