Australia country information

Common names: Bullhead, Bullhead shark, Dogshark
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: of no interest | Ref: Last, P.R. and J.D. Stevens, 1994
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in southern Australia, from Houtman Abrolhos in Western Australia to Byron Bay in New South Wales, including Tasmania (Ref. 6871). Records from York Sound in northern Western Australia and Moreton Bay in Queensland are questionable (Ref. 6871). Bycatch of the southern shark gillnet fishery but it not used as food (Ref. 6871). Also Ref. 247, 7300, 9838, 26346.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Last, P.R. and J.D. Stevens, 1994
National Database:

Common names from other countries

Requin dormeur taureau, Dormilón toro, قؤش نوّام ثَوْر, ... more

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

أشلاق (القروش و الشفانين) (sharks and rays) > Heterodontiformes (Bullhead and horn sharks) > Heterodontidae (Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: heteros (Gr.), different; odontos (Gr.), tooth, referring to pointy teeth (for clutching prey) at front of jaws, different than rounded molar-like teeth (for grinding hard-shelled invertebrates) at the back. (See ETYFish); portusjacksoni: Of Port Jackson, Sydney, New South Wales, near Botany Bay, type locality. (See ETYFish).

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

بحري القاع; محيطية (Ref. 51243); نطاق العمق 0 - 275 m (Ref. 26346). Subtropical; 23°S - 44°S, 112°E - 154°E

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

Western Pacific: southern Australia (including Western Australia) and one record from New Zealand. Heterodontus bona-spei from South Africa probably refers to this species.

Length at first maturity / الحجم / وزن / العمر

Maturity: L_m 87.5, range 80 - 95 cm
Max length : 165 cm TL ذكر/ مختلط الجنس; (Ref. 247); common length : 137 cm TL ذكر/ مختلط الجنس; (Ref. 247)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

الأشواك الظهرية (المجموع) : 2; شوكة شرجية: 0. Harness-like narrow dark stripes on back (Ref. 9838).

A common shark of the continental shelves (Ref. 9838), from close inshore at the intertidal zone to 275 m (Ref. 6871). Segregates by sex and maturity stage (Ref. 6871). Nocturnal, hides in caves and rocky gullies during the day (Ref. 6871). Feeds on benthic invertebrates, primarily echinoderms (Ref. 247). Oviparous (Ref. 50449). Eggs with spiral flanges but lack tendrils (Ref. 6871). Undergoes yearly migrations to spawning sites during breeding season (Ref. 247). Considered harmless to people, but can deliver a painful nip when provoked (Ref. 247).

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

Oviparous. Distinct pairing with embrace (Ref. 205). Undergoes yearly migrations to breeding sites. Females lay about 10 to 16 (commonly 10-12) eggs in rock crevices on shallow sheltered reefs at depths of 1-5 m (rarely 20-30 m) during August and September (rarely in July and October). In captivity, females lay 2 eggs a day every 8-17 days. Eggs are hatched after 9-12 months and young then move into nursery areas in bays and estuaries. After the breeding season, males move into deeper waters followed by the females in late September or October.

المرجع الرئيسي Upload your references | مراجع | المنظم | 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 18 February 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

Traumatogenic (Ref. 247)

استخدامات بشرية

مصائد: غير مهمة تجارياً; حوض مائي: احواض مائية عامة

FAO(مصائد: ملف الأنواع; publication : search) | FishSource |

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

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صفحة الملخص | نقطة بيانات | الأسماء الشائعة | صور

مصادر علي الأنترنت

Estimates based on models

Preferred temperature (Ref. 115969): 14.1 - 22.6, mean 16.8 (based on 178 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00347 (0.00255 - 0.00471), b=3.17 (3.08 - 3.26), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

مستوى غذائي (Ref. 69278): 3.5 ±0.48 se; based on food items.

المرونه (Ref. 120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (tm=8-10; Fec=10).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (72 of 100).

فئة السعر (Ref. 80766): Unknown.

Heterodontus portusjacksoni (Meyer, 1793)