Brazil country information

Common names: Cação-frango, Cação, Cação de praia
Occurrence: native
Salinity: brackish
Abundance: occasional (usually not seen) | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Uncommon (Ref. 84211). Also Ref. 244, 103985.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Feitoza, B.M., R.S. Rosa and L.A. Rocha, 2005
National Database:

Common names from other countries

Requin aiguille antillais, Cazón picudo antillano, Atlantic sharpnose shark, ... 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) > Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals]. (See ETYFish); porosus: Latin for pored or full of holes, referring to enlarged hyomandibular pores on both sides of head. (See ETYFish).
More on author: Poey.

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

بحري; المياه العذبة; مياه مخلوطة مرتبطة بالشعاب; نطاق العمق ? - 500 m (Ref. 244), usually ? - 100 m (Ref. 244). Tropical; 28°N - 40°S, 88°W - 32°W (Ref. 55194)

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

Western Atlantic: Caribbean, including the Bahamas, south to Uruguay. The separation of this species from Rhizoprionodon terraenovae whether as a distinct species or a representative of a southern subspecies is still uncertain and pending until detailed studies are commenced.

Length at first maturity / الحجم / وزن / العمر

Maturity: L_m 65.0, range 80 - ? cm
Max length : 113 cm TL ذكر/ مختلط الجنس; (Ref. 111958); common length : 75.0 cm TL ذكر/ مختلط الجنس; (Ref. 5217); أعلا وزن تم نشرة: 7.5 kg (Ref. 111958)

Common in bays and estuaries often entering rivers. Also found in offshore waters at depths of about 500 m, generally less than 100 m. Feeds mainly on small bony fishes, including wrasses, but also marine snails, squid and shrimp. Viviparous, with 2 to 6 young in a litter. Size at birth about 31 to 39 cm. Utilized salted or frozen for human consumption and processed into fish meal. Not dangerous (Ref. 9710).

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

Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).

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)

معرضة للخطر, انظر القائمة الحمراء للأتحاد الدولي للمحميات الطبيعية (VU) (A2d); Date assessed: 21 June 2019

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

Harmless

استخدامات بشرية

مصائد: تجاري

FAO(Publication : search) | FIRMS (Stock assessments) | 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): 17.5 - 27.1, mean 24.2 (based on 80 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00214 (0.00141 - 0.00323), b=3.09 (2.97 - 3.21), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

مستوى غذائي (Ref. 69278): 4.0 ±0.2 se; based on diet studies.

المرونه (Ref. 120179): منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec=2; K=0.3-0.42).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (51 of 100).

فئة السعر (Ref. 80766): Medium.

Rhizoprionodon porosus (Poey, 1861)