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Triaenodon obesus (Rüppell, 1837)

Whitetip reef shark
إضافة ملاحظاتك Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Triaenodon obesus   AquaMaps   Data sources: GBIF OBIS
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Pictures | Videos |     Stamps, Coins Misc. | صور قوقل

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

أشلاق (القروش و الشفانين) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
  More on author: Rüppell.

Environment: milieu / climate zone / depth range / distribution range البيئة

; بحري مرتبطة بالشعاب; نطاق العمق 1 - 330 m (Ref. 244), usually 8 - 40 m (Ref. 244).   Tropical; 29°N - 30°S, 33°E - 77°W (Ref. 55196)

التوزيع دول | مناطق الفاو | النظام البيئي | الظهور | Point map | مقدمة | Faunafri

Indo-Pacific: Red Sea and East Africa to Indonesia and the Arafura Sea (Ref. 9819), north to Ryukyu and Ogasawara islands, south to New South Wales (Australia), New Caledonia, and the Austral and Pitcairn islands; throughout Micronesia. Eastern Pacific: Cocos and Galapagos islands, Panama to Costa Rica.

Length at first maturity / الحجم / وزن / العمر

Maturity: Lm ?, range 105 - 109 cm
Max length : 213 cm TL ذكر/ مختلط الجنس; (Ref. 244); common length : 160 cm TL ذكر/ مختلط الجنس; (Ref. 244); أعلا وزن تم نشرة: 18.3 kg (Ref. 4699); العمر: 25 سنين (Ref. 6807)

وصف مختصر الوصف الخارجي | قياسات المظهر الخارجي

الأشواك الظهرية (المجموع): 0; الأشعة الظهرية الناعمة (المجموع): 0; شوكة شرجية 0; أشعه شرجية لينه: 0. A small, slender shark with an extremely short, broad snout, oval eyes, and conspicuous white tips on the 1st dorsal (sometimes 2nd) and upper caudal fins; 2nd dorsal almost as large as 1st; no interdorsal ridge (Ref. 5578). Spiracles usually present, teeth 47-50/ 44-46, in at least 2 functional rows. Grey above, lighter below and sometimes with dark spots on sides (Ref. 5578). First dorsal-fin lobe and dorsal caudal-fin lobe with conspicuous white tips, second dorsal-fin lobe and ventral caudal-fin lobe often white-tipped (Ref. 9997).

أحياء     المصطلحات (على سبيل المثال epibenthic)

Sluggish inhabitant of lagoons and seaward reefs where it is often found resting in caves or under coral ledges during the day (Ref. 6871, 58302), or usually on a sand patch, or in a channel (Ref. 37816). More active at night or during slack tide in areas of strong currents (Ref. 37816). Feeds on benthic animals such as fishes, octopi, spiny lobsters and crabs (Ref. 244). Viviparous (Ref. 50449). Travels distances from about 0.3 to 3 km in periods up to about 1 year (Ref. 244). Rarely reported to attack humans, but is potentially dangerous especially when fish had been speared (Ref. 244). Probably fished wherever it occurs (Ref. 244). Caught by inshore longline and gillnet fisheries, and probably adversely affected by dynamite fishing (Ref.58048). Meat and liver utilized fresh for human consumption (Ref. 244). The liver of this shark has been reported as toxic (Ref. 583). One to five 60 cm young per litter (Ref. 1602).

Life cycle and mating behavior النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae

Viviparous, placental (Ref. 50449), with 1 to 5 young per litter (Ref. 244); usually 2 or 3 pups after a gestation period of > 5 months (Ref.58048). Size at birth 52-60 cm TL (Ref. 9997). Distinct pairing with embrace (Ref. 205). During courtship and prior to copulation, the male bites the female on her right pectoral fin and uses his medially flexed right clasper in copulation (Ref. 49562, 51119). During copulation which lasts from 15 seconds to 4 minutes (Ref. 49562, 51119), both heads of the male and female are slammed in the substrate and their bodies undulate to keep their tails elevated (Ref. 51155). This mating behavior was observed in individuals bred in captivity.

المرجع الرئيسي Upload your references | مراجع | المنظم : Compagno, Leonard J.V. | المتعاونين

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. 120744)

  قريب من التهديد بالخطر (NT) ; Date assessed: 01 October 2005

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

  Traumatogenic (Ref. 4690)





استخدامات بشرية

مصائد: غير مهمة تجارياً; لعبة سمكه: نعم
FAO(Publication : search) | FishSource | البحر حولنا

مزيد من المعلومات

الأسماء الشائعة
مرادفات
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مفتريسات
علم السميات البيئية
التكاثر
النضج
وضع البيض
تجمعات وضع البيض
الخصوبة
بيض
تطور البيضة
العمر/ الحجم
نمو
الطول-الوزن
الطول-الطول
الطول- الترددات
قياسات المظهر الخارجي
الوصف الخارجي
Larvae
حركة انتقال اليرقات
توظيف
الوفرة
مراجع
الأستزراع المائي
ملف الأستزراع المائي
سلالات
جيني
تواتر الأليل
التوريث
الأمراض
معالجة
Mass conversion
المتعاونين
صور
Stamps, Coins Misc.
اصوات
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سرعة
نوع السباحة
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عظمة الأذن
دماغ
رؤية

أدوات

تقارير خاصة

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مصادر علي الأنترنت

Estimates based on models

Preferred temperature (Ref. 115969): 24.3 - 28.8, mean 27.6 (based on 898 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00196 - 0.00559), b=3.14 (3.00 - 3.28), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
مستوى غذائي (Ref. 69278):  4.2   ±0.6 se; Based on diet studies.
المرونه (Ref. 120179):  منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (tm=5-9; tmax=25; Fec=1).
عرضة للخطر (Ref. 59153):  Very high vulnerability (83 of 100) .
فئة السعر (Ref. 80766):   Medium.