محيط زيست / آب و هوا _ اقليم / Range
بوم شناسي
; دريايي نزديك كف زي; تغييرات عمق 60 - 430 m (Ref. 5578), usually 60 - ? m. Subtropical, preferred ?; 23°S - 37°S, 19°E - 45°E (Ref. 54706)
Western Indian Ocean: off Madagascar and from southern Mozambique to Cape Agulhas, South Africa.
Length at first maturity / Size / Weight / سن
Maturity: Lm ?, range 110 - ? cm
Max length : 170 cm TL جنس نر / بدون خواص جنسي; (Ref. 5578)
خارهاي باله پشتي (کل): 0; شعاع نرم باله پشتي (کل): 0; خارهاي باله مخرجي 0; شعاع نرم باله مخرجي: 0. The only shark with a saw-snout and 6 pairs of gill slits (Ref. 5578). Pale brown above, white below (Ref. 6587).
Found on the continental shelf and upper slope to at least 430 m (Ref. 247). Feeds on bony fish, also shrimp, mysids and squid (Ref. 5578). Ovoviviparous (Ref. 50449), with 5 to 7 young in a litter (Ref. 247). Probably uses its saw to stun and kill prey (Ref. 5578). Sometimes caught by sports anglers (Ref. 5578).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Ovoviviparous, with 5 to 7 young in a litter (others have 7 to 17 developing eggs). Size at birth about 35 cm. Embryos feed solely on yolk (Ref. 50449).
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)
وضعيت در فهرست قرمز IUCN (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی; ماهي ها ي سرگرم كننده: بله
اطلاعات بيشتر
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكتواتر آلل هاوارثبيماري هافرآوریMass conversion
همكارانعکس هاStamps, Coinsصداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 1.0078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic Level (Ref.
69278): 4.2 ±0.6 se; Based on diet studies.
جهندگی (Ref.
69278): خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (Fec=5).
آسيب پذيری (Ref.
59153): High to very high vulnerability (75 of 100) .
