ইলাসমোব্রাঙ্কি (হাঙ্গর এবং রে) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Galeorhininae
Etymology: Furgaleus: fur, Latin for thief (Whitley said “‘shark’ or villain”); galeus, Greek for weasel, an ancient name for sharks perhaps alluding to what some may have perceived as a weasel-like body or pointed snout [replacement name for Fur Whitley 1943, preoccupied by Fur Jones 1940 in Diptera]. (See ETYFish); macki: In honor of British-born ichthyologist-ornithologist George Mack (1899-1963), National Museum, Melbourne, Australia. (See ETYFish).
More on author: Whitley.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
সামুদ্রিক তলদেশ বিহারী; গভীরতার পরিসীমা ? - 220 m (Ref. 6871). Temperate; 21°S - 45°S
Eastern Indian Ocean: southern Australia.
Length at first maturity / আকৃতি / ওজন / Age
Maturity: Lm 112.0, range 120 - ? cm
Max length : 160 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 6871); সবের্াচ্চ প্রকাশিত ওজন : 12.9 kg (Ref. 6390); সর্বোচ্চ উলি্ল্লখিত বয়স : 12 বৎসর (Ref. 35585)
Found on the continental shelf, commonly on rock bottom, seaweed and kelp beds. Feeds on octopi, squid, bony fishes and lobsters. Peanut worms and seagrass are also included in their diet (Ref. 6390). Ovoviviparous, with 5-24 in a litter (Ref. 6871). Young are 20-25 cm long at birth (Ref. 13840, 244). Marketed fresh for human consumption.
Ovoviviparous but aplacental. Stock sex ratio is 1:1 (Ref. 13839). Gives birth in spring or early autumn (Ref. 6871). Litter size is 5-24 (Ref. 6871). In the Western Australian population, ovulation and early pregnancy take place between January and March. Gestation period probably lasts for 9-12 months. Each female probably does not breed every year.
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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 130435)
Human uses
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ইন্টারনেট সুত্র
Estimates based on models
Preferred temperature (Ref.
123201): 14 - 18.2, mean 16 °C (based on 136 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00183 - 0.00992), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.8 ±0.41 se; based on food items.
Generation time: 3.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
স্থিতিস্থাপক (Ref.
120179): অত্যন্ত কম , সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৪ বৎসর (K=.29-0.42; tmax=11.5; Fec=5).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
