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Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Centroscymnus: centr[um] (L.), prickle or sharp point, referring to spines on both dorsal fins; scymnus, an ancient name for some kind of shark, derived from a Greek word meaning young animal, cub or whelp. (See ETYFish).
More on author: Waite.
Issue
Synonym of Scymnodon macracanthus (Regan, 1906) (Ref. 125657). This page will be removed.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; সামুদ্রিক ব্যথিডিমারসাল সমুদ্র তলদেশবিহারী; গভীরতার পরিসীমা 219 - 1550 m (Ref. 6871), usually 550 - 732 m (Ref. 247). Deep-water; 32°S - 56°S, 136°E - 168°W
Southwest Pacific: New Zealand and southeastern Australia.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 149.5, range 129 - 170 cm
Max length : 131 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 247); 170.0 cm TL (female)
পায়ূ কাঁটা 0; পায়ূর নরম পাখনা্তুন্ড: 0. Dark grey-brown in color, dorsal fins with very small fin spines, very short snout, lanceolate upper teeth and bladelike lower teeth with short, oblique cusps, stocky body that tapers abruptly from pectoral region, moderately large dermal denticles with triple cusps and ridges in adults and subadults (Ref. 247).
Found on continental and insular slopes (Ref. 247). Occurs in large schools near the bottom which are segregated according to size and sex (Ref. 247). Feeds on cephalopods and bony fishes (Ref. 247). Ovoviviparous (Ref. 205), with up to 36 young in a litter. Size at birth between 32 and 36 cm (Ref. 247). Used for fishmeal and liver oil (Ref. 6871). Minimum depth from Ref. 247.
Ovoviviparous with up to 36 young in a litter. Size at birth between 32 and 36 cm (Ref. 247). Distinct pairing with embrace (Ref. 205).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN Red List Status (Ref. 125652)
Threat to humans
Harmless
Human uses
মৎস্য: সম্ভাবনাময় আকর্ষণ
আরো তথ্য
সূত্র সংখ্যা এ্যাকুয়াকালচার (জলজ পালন) এ্যাকুয়াকালচার নকশা বংশ বংশানুগতিবিদ্যাএ্যালিল সঙ্ঘটন উতরাধিকার সুত্রে পাওয়া যোগ্যতারোগ প্রক্রিয়াজাতকরণ NutrientsMass conversion
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
115969): 5.1 - 8.8, mean 6.9 °C (based on 105 cells).
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00226 - 0.00639), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 4.5 ±0.59 se; based on food items.
স্থিতিস্থাপক (Ref.
120179): নিম্ন/ , সর্বনিম্ন প্রজন দ্বিগুনের সময় ৪.৪-১৪ বৎসর (Fec=36).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100) .
Climate Vulnerability (Ref.
125649): (0 of 100) .
