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Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Galeorhininae
Etymology: Iago: Name of villain in Shakespeare’s Othello, because members of this genus have been a “troublemaker for systematists and hence a kind of villain” (See ETYFish); garricki: Patronym not identified but clearly in honor of J.A.F. (Jack) Garrick (1928-2018), New Zealand shark taxonomist and biologist (See ETYFish).
Eponymy: The name of this genus derives from Iago, the villain in Shakespeare’s play Othello. The authors say that this genus is “a troublemaker for systematists and hence a kind of villain”. Dr John Andrew Frank (Jack) Garrick (1928–2018) was a New Zealand ichthyologist with a specialization in elasmobranchs. [...] (Ref. 128868), visit book page.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي موجوداتی که در اعماق زیر 200 متر زندگی و تغذیه می کنند; تغييرات عمق 250 - 475 m (Ref. 6871). Deep-water; 9°S - 26°S
Indo-Pacific: from the South China Sea (off Dongsha Atolll) to nw and ne Australia, including Indonesia, the Philippines, Papua New Guinea and Vanuatu.
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm ?, range 45 - ? cm
Max length : 75.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 244)
خارهاي باله پشتي (کل) : 0; خارهاي باله مخرجي: 0. This species is distinguished by the following characters: snout long and narrow; preoral length 35.1% (34.9-38.7%) head length; eye large, its length 18.5% (17.0-24.1%) HL; gill slit rather short, first gill slit height 47.8% (31.4-51.6%) eye length; anterolateral teeth straight to slightly oblique, blade-like, with 1-3 broad, smooth distal cusplets; first dorsal-fin origin does not reach to the vertical line through the pectoral-fin base; caudal-fin ventral lobe is moderately developed in adults. Colouration: body generally grey, with faint dark edges on dorsal-fin apexes, more prominent in juveniles (Ref. 127459).
Body shape (shape guide): elongated; Cross section: angular.
A little-known tropical shark found on the uppermost insular slopes (Ref. 13563) at depths of 250-475 m (Ref.58048). Stomach contents of a specimen included small Macrouridae (Hymenocephalus sp., Nezumia sp., Ventrifossa spp.), crustaceans (Penaeoidea, Munidae) (Ref. 127459) and cephalopods (Ref. 244). Viviparous, placental (Ref. 50449). Caught irregularly by the small-scale demersal longline fisheries operating in deepwater. Utilized for its meat and fins, but of limited value due to its small size (Ref.58048).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Viviparous, placental (Ref. 50449). With 4 or 5 young per litter (Ref. 244). Size at birth near 23 cm (full-term fetuses) (Ref. 244). Distinct pairing with embrace (Ref. 205).
Ng, S.-L., H.-C. Ho, K.-M. Liu and S.-J. Joung, 2022. Redescription of the longnose houndshark Iago garricki (Carcharhiniformes: Triakidae), based on specimens recently collected from the South China Sea. Zootaxa 5189(1):67-77. (Ref. 127459)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00437 (0.00187 - 0.01020), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
4.5 ±0.37 se; based on food items. |
جهندگی (مرجع 120179) |
خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (Fec=4). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Moderate vulnerability (45 of 100). 🛈 |
طبقه قيمت (Ref. 80766) |
High.
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