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Hemipristis elongata (Klunzinger, 1871)

Snaggletooth shark
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Native range | All suitable habitat | Point map | Year 2050
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Hemipristis elongata   AquaMaps   Data sources: GBIF OBIS
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Hemipristis elongata
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Philippines country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Collected from a fish market in Manila, USNM-197387 (Ref. 244, 47737) and by the WWF Elasmobranch project from Cebu, JPAG 132, immature male, 1145mm (Ref. 47736, 47737). Also Ref. 244, 6871, 13567.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Alava, M.N.R., J.P.A. Gaudiano, J.A. Utzurrum, E.E.C. Capuli, M.T.R. Aquino, M.M.A. Luchavez-Maypa and M.D. Santos, 2014
National Database:

Common names from other countries

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays) > Carcharhiniformes (Ground sharks) > Hemigaleidae (Weasel sharks)
Etymology: Hemipristis: hemi-, from hemisys (Gr.), half; pristis, from pristes (Gr.), sawyer (but here meaning saw), allusion not explained, possibly referring to how marginal serrations of teeth of H. serra (type species, a fossil) do not extend over the entire length of each tooth. (See ETYFish);  elongata: Latin for prolonged, referring to its long and slim body. (See ETYFish).
  More on author: Klunzinger.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

Biển gần đáy; Mức độ sâu 1 - 130 m (Ref. 6871).   Tropical; 41°N - 34°S, 12°E - 156°E (Ref. 6871)

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Indo-West Pacific: Red Sea and southeast Africa, including Persian Gulf (Ref. 68964) to Philippines, north to China, south to Australia.

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm ?, range 120 - ? cm
Max length : 240 cm TL con đực/không giới tính; (Ref. 5578); common length : 200 cm TL con đực/không giới tính; (Ref. 13567)

Short description Khóa để định loại | Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng) : 0; Tia cứng vây hậu môn: 0. A slender weasel shark with a long, broadly rounded snout, large curved, saw-edged teeth in the upper jaw, and hooked lower teeth protruding from mouth; gill slits long; fins strongly curved (Ref. 5578). Light grey or bronzy with no prominent markings (Ref. 5578).

Sinh học     Tự điển (thí dụ epibenthic)

A coastal species, found inshore and offshore on the continental and insular shelves (Ref. 244). Feeds on sharks, rays and bony fishes (Ref. 244); also cephalopods (Ref. 13567). Viviparous (Ref. 50449). Thought to be potentially dangerous because of its large, fearsome teeth and shallow-water habitat, but has not been recorded in an attack on people (Ref. 244). Caught regularly by inshore gillnet, bottom trawl (occasionally) and longline fisheries (Ref.58048). Regularly taken in artisanal fisheries (Ref. 13567). Utilized fresh for human consumption, liver processed for vitamins, fins used in the oriental shark fin trade, and by-products processed into fishmeal (Ref. 244). Most adults below 200 cm (Ref. 30573).

Life cycle and mating behavior Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng

Viviparous, with 2 to 11 young in a litter (Ref. 6871) after a gestation period of 7-8 months; possibly reproduces in alternate years (Ref.58048). Size at birth about 45-52 cm TL (Ref. 13567, Ref.58048). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

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)

  Dễ bị tổn thương, xem Sách đỏ của IUCN (VU) (A2bd+3bd); Date assessed: 20 February 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 5213)




Human uses

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Trophic ecology
Các loại thức ăn
Diet compositions
Food consumptions
Food rations
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Ecology
Sinh thái học
Home ranges
Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Sự tái sinh sản
Maturities
Fecundities
Spawnings
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Egg(s)
Egg developments
Ấu trùng
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Anatomy
Gill areas
Não bộ
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
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Swimming speeds
Visual pigment(s)
Âm thanh của cá
Diseases / Parasites
Toxicities (LC50s)
Genetics
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Estimates based on models

Preferred temperature (Ref. 115969): 23.8 - 29, mean 27.9 (based on 2110 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00147 - 0.00899), b=3.07 (2.86 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  4.3   ±0.3 se; based on diet studies.
Thích nghi nhanh (Ref. 120179):  Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Fec=2).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Price category (Ref. 80766):   Unknown.