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Chaenogaleus macrostoma (Bleeker, 1852)

Hooktooth shark
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Native range | All suitable habitat | Point map | Year 2050
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Chaenogaleus macrostoma   AquaMaps   Data sources: GBIF OBIS
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Image of Chaenogaleus macrostoma (Hooktooth shark)
Chaenogaleus macrostoma
Picture by Iranian Fisheries Research Organization (IFRO)

Sri Lanka country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: Compagno, L.J.V., 1984
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Commonly taken by inshore and offshore artisanal fisheries (Ref. 244). Also Ref. 13567.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ce.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

Milandre harpon, Comadreja ganchuda, 钩齿鲨, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Carcharhiniformes (Ground sharks) > Hemigaleidae (Weasel sharks)
Etymology: Chaenogaleus: chaeno-, from chaino (Gr.), gape, referring to “rictus as long as wide”; galeos, a small shark or dogfish per Aristotle (sometimes translated as weasel, hence the name Weasel Sharks, possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks1), but in this case probably an allusion to Hemigaleus, original genus of C. macrostoma. (See ETYFish);  macrostoma: macro-, from makros (Gr.), large or long; stoma (Gr.), mouth, referring to long, greatly arched mouth compared with Hemigaleus microstoma, its presumed congener at the time. (See ETYFish).
  More on author: Bleeker.

Environment: milieu / climate zone / depth range / distribution range 生態学

海 底生の; 深さの範囲 ? - 59 m (Ref. 244).   Tropical; 30°N - 10°S

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Indo-West Pacific: Persian Gulf (Ref. 13567), Pakistan, India, Sri Lanka, Singapore, Thailand, Viet Nam, China, Taiwan, Java and Sulawesi in Indonesia. This name has been used indiscriminately for the three species of hemigaleids in Indo-Pakistani waters other than Hemipristis elongatus.

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 82.5, range 68 - 97 cm
Max length : 100.0 cm TL オス/雌雄の選別がない; (Ref. 244)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 0; 肛門の骨: 0. Bronzy-grey above, white below when fresh, fading to greyish or greyish brown in preservation, dorsal fins often with dusky or black tips (Ref. 13567).

生物学     用語集 (例 epibenthic)

A common inshore and offshore shark found on the continental and insular shelves (Ref. 13567). Probably feeds on small fishes, cephalopods, and crustaceans (Ref. 244). Viviparous (Ref. 50449). Caught irregularly by inshore gillnet fisheries and occasionally by small-scale longlining (Ref.58048). Probably taken by artisanal fisheries wherever it occurs (Ref. 13567). Utilized fresh for human consumption and by-products processed into fishmeal (Ref. 244).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

Viviparous (with a yolk-sac placenta), with 4 young in a litter (Ref. 244). Size at birth at least 20 cm (Ref. 244). Distinct pairing with embrace (Ref. 205).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

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のレッドリストの状況は (Ref. 130435)

  攻撃されやすい (VU) (A2d); Date assessed: 12 May 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless (Ref. 13567)




Human uses

水産業: 少数商業の
FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 25 - 29.3, mean 28.4 (based on 1082 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00223 - 0.00470), b=3.02 (2.92 - 3.12), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
栄養段階 (Ref. 69278):  4.2   ±0.57 se; based on food items.
回復力 (Ref. 120179):  非常に低い, １４年以上の倍増期間の最小個体群 (Fec=4).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).
価格帯 (Ref. 80766):   Unknown.