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Hemigaleus microstoma Bleeker, 1852

Sicklefin weasel shark
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Hemigaleus microstoma   AquaMaps   Data sources: GBIF OBIS
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Image of Hemigaleus microstoma (Sicklefin weasel shark)
Hemigaleus microstoma
Picture by Randall, J.E.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Carcharhiniformes (Ground sharks) 真鯊目 (Ground sharks) > Hemigaleidae (Weasel sharks) 沙條鮫科 (Weasel sharks)
Etymology: Hemigaleus: hemi-, from hemisys (Gr.), half, referring to similarity to and/or close affinity with Galeus (now in Pentanchidae). (See ETYFish);  microstoma: micro-, from mikros (Gr.), small; stoma (Gr.), mouth, referring to very short arched mouth compared with Chaenogaleus macrostoma, its presumed congener at the time. (See ETYFish).
More on author: Bleeker.

Issue
Specimens from Australia (and probably Papua New Guinea) are placed in Hemigaleus australiensis White, Last & Compagno, 2005 (Ref. 56150).

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

海洋 居於水底的. 熱帶; 22°C - 28°C (Ref. 244); 28°N - 30°S

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Indo-West Pacific: southern India and Sri Lanka; China to Indonesia (Ref. 56150). Also from Red Sea (Ref. 93009).

Specimens found in Australia (and probably Papua New Guinea) belong to a separate species, Hemigaleus australiensis (Ref. 56150).
印度-西太平洋: 印度南部與斯里蘭卡; 中國到澳洲與阿拉弗拉海.(參考文獻 9819) 體色的差異與身體分節顯示出澳洲,而且可能地這種的印度洋北部代表可能是區分為種或亞種。 (參考文獻 13567)

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm ?, range 78 - ? cm
Max length : 114 cm TL 雄魚/尚未辨別雌雄; (Ref. 58048)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 0; 臀棘: 0. Australian specimens with dark-tipped fins; tooth counts 28-34/43-54; total vertebral counts 111 to 118 (Ref. 13567). Indonesian, Singapore and Thailand specimens with light-tipped fins; tooth counts 25-32/37-43; total vertebral counts 137 to 150 (Ref. 13567). Grey-brown above, lighter below, dorsal fins with white tips and posterior margins, sometimes with spots on sides of body (Ref. 13567).
用尖端深色的鰭澳洲的標本; 牙齒數 28-34/43-54; 總脊椎骨數 111 到 118.(參考文獻 13567) 印尼, 新加坡與泰國標本有淡色的-頂端了鰭; 牙齒數 25-32/37-43; 總脊椎骨數 137 到 150.(參考文獻 13567) 背面灰褐色的﹐腹面顏色較淡, 背鰭具有白色的頂端與後緣, 在身體側邊上有時有斑點.(參考文獻 13567)

生物學特性     字彙 (例如 epibenthic)

A small, relatively common inshore and offshore shark of tropical continental seas (Ref. 13567). Feeds mainly on cephalopods, particularly octopi (Ref. 13567) but also takes crustaceans and cephalopods (Ref. 244). Viviparous (Ref. 50449). Taken regularly in inshore artisanal fisheries (Ref.244), commonly caught by inshore gillnet, bottom trawl and, to a lesser extent, longline fisheries. Utilized for human consumption (Ref. 244). Offal used for fishmeal (Ref. 244).

一種小的, 熱帶大陸的海洋相當普遍岸邊與外海鯊魚.(參考文獻 13567) 主要吃頭足類動物, 特別地章魚 (參考文獻 13567) 也捕食甲殼動物與頭足類動物。 (參考文獻 244) 胎生的.(參考文獻 50449) 在近海漁民中經常被捕獲並且供人類消費使用。 (參考文獻 244) 碎肉製成魚漿.(參考文獻 244)

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

Viviparous, with a yolk-sac placenta; 4 to 14 fetuses in a litter (Ref. 13567); 2-4 pups after a gestation period of about 6 months; born at about 45-47 cm TL (Ref. 58048). Size of full-term fetuses (detached umbilical cords and placentae) ranges from 23.7 to 25.6 cm (Ref. 244). Distinct pairing with embrace (Ref. 205).印度-西太平洋: 印度南部與斯里蘭卡; 中國到澳洲與阿拉弗拉海.(參考文獻 9819) 體色的差異與身體分節顯示出澳洲,而且可能地這種的印度洋北部代表可能是區分為種或亞種。 (參考文獻 13567)

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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 瀕危狀態 (Ref. 130435)

  次級保育類動物, 見 IUCN 紅皮書 (VU) (A2d); Date assessed: 06 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的 (Ref. 13567)





人類使用

漁業: 低經濟
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Estimates based on models

Preferred temperature (Ref. 123201): 22.2 - 28.3, mean 27 °C (based on 816 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7539   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00140 - 0.00781), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  4.2   ±0.4 se; based on diet studies.
回復力 (Ref. 120179):  非常低的, 最小族群倍增時間超過14 年 (Fec=4).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (68 of 100).
價格種類 (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 27.9 [4.5, 154.3] mg/100g; Iron = 0.693 [0.182, 2.119] mg/100g; Protein = 19 [17, 21] %; Omega3 = 0.114 [0.048, 0.271] g/100g; Selenium = 54.1 [16.0, 167.0] μg/100g; VitaminA = 22.3 [7.2, 70.4] μg/100g; Zinc = 0.769 [0.374, 1.395] mg/100g (wet weight);