South Africa country information

Common names: Gespikkelde sloothaai, Spotted gully shark, Spotted gullyshark
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref: van der Elst, R.P. and F. Adkin (eds.), 1991
Importance: minor commercial | Ref: Compagno, L.J.V., 1984
Aquaculture: | Ref:
Regulations: no regulations | Ref: van der Elst, R., 1993
Uses: gamefish: yes;
Comments: Ranges from the west coast to Coffee Bay, Transkei; rarely off Natal. Stock sound; commonly caught by rock and surf tournament anglers (Ref. 4332). There is a fairly large commercial fishery in Gans Bay (Ref. 244). Also Ref. 5485, 12484.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
National Database:

Common names from other countries

Virli dentu, Tollo dentudo, قرش كلب ذو أسنان حادَّة, ... more

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa

أشلاق (القروش و الشفانين) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Triakis: tri-, from tres (L.), three; akis (Gr.), point, referring to each tooth consisting of one large central cusp flanked on by both sides by a small cusplet. (See ETYFish); megalopterus: mega-, from megas (Gr.), large; pterus (Gr.), fin, referring to its broad, large fins. (See ETYFish).
More on author: Smith.

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

بحري القاع; نطاق العمق 1 - 50 m (Ref. 5578). Subtropical; 30°S - 36°S

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

Southeast Atlantic: Namibia to Coffee Bay, South Africa.

Length at first maturity / الحجم / وزن / العمر

Maturity: L_m 145.0, range 140 - 150 cm
Max length : 142 cm TL ذكر/ مختلط الجنس; (Ref. 244); 174.0 cm TL (female); أعلا وزن تم نشرة: 20.0 kg (Ref. 5485)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

الأشواك الظهرية (المجموع) : 0; شوكة شرجية: 0. Blunt snout and a large mouth with small pointed teeth; caudal peduncle short and heavy (Ref. 5578). Grey with numerous black spots which may be sparse or absent in some specimens; new born pups with fewer black spots compared to adults (Ref. 5485); white below (Ref. 5578).

Occurs off sandy beaches, rocky shores and in shallow bays (Ref. 5578). Feeds on crabs, lobsters, bony fish and small sharks (Ref. 5578). Ovoviviparous (Ref. 50449). Forms schools in summer (Ref. 244). Hardy and keeps well in captivity (Ref. 244). Commonly caught by rock and surf sports anglers but not eaten much (Ref. 244). Meat is dried into shark 'biltong' or jerky which commands a relatively high price (Ref. 244). Attains 160 cm, TL (Ref. 36731).

Life cycle and mating behavior Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae

Ovoviviparous, embryos feed solely on yolk (Ref. 50449), with 6 to 12 young in a litter (Ref. 244). 30-32 cm at birth (Ref. 244).

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. 130435)

Least Concern (LC) ; Date assessed: 01 August 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

Harmless

استخدامات بشرية

مصائد: غير مهمة تجارياً; لعبة سمكه: نعم; حوض مائي: احواض مائية عامة

FAO(مصائد: الأنتاج; publication : search) | FishSource | البحر حولنا

مزيد من المعلومات

Trophic ecology
عناصر الغذاء
Diet compositions
Food consumptions
Food rations
مفتريسات

Ecology
البيئة
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
الطول- الترددات
Mass conversions
Recruitments
Abundances

Life cycle
التكاثر
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
حركة انتقال اليرقات

Distribution
دول
مناطق الفاو
النظام البيئي
الظهور
مقدمة
BRUVS - Videos

Anatomy
Gill areas
دماغ
عظمة الأذن

Physiology
Body compositions
Nutrients
Oxygen consumptions
نوع السباحة
Swimming speeds
Visual pigment(s)
أصوات الأسماك
Diseases / Parasites
Toxicities (LC50s)

Genetics
جيني
Electrophoreses
Heritabilities

Human related
Aquaculture systems
ملامح تربية الأحياء المائية
سلالات
Ciguatera cases
Stamps, coins, misc.

Outreach
المتعاونين

Taxonomy
الأسماء الشائعة
مرادفات
الوصف الخارجي
قياسات المظهر الخارجي
صور

References
مراجع

أدوات

تقارير خاصة

البحث عن صيانت الأحواض المائيه | التحقق من وجود صفحات حقائق الأنواع | البحث عنا حقائق حول الأحواض المائيه

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صفحة الملخص | نقطة بيانات | الأسماء الشائعة | صور

مصادر علي الأنترنت

Estimates based on models

Preferred temperature (Ref. 115969): 15.8 - 22.4, mean 19.3 (based on 26 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00240 (0.00110 - 0.00521), b=3.14 (2.96 - 3.32), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

مستوى غذائي (Ref. 69278): 4.0 ±0.5 se; based on diet studies.

المرونه (Ref. 120179): منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec=6).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

فئة السعر (Ref. 80766): High.

Triakis megalopterus (Smith, 1839)