Carcharhinus dussumieri, Whitecheek shark : fisheries
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Carcharhinus dussumieri (Müller & Henle, 1839)

Whitecheek shark
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Carcharhinus dussumieri   AquaMaps   Data sources: GBIF OBIS
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) 白眼鮫目 (Ground sharks) > Carcharhinidae (Requiem sharks) 白眼鮫科 (Requiem sharks)
Etymology: Carcharhinus: Greek, karcharos = sharpen + Greek, rhinos = nose (Ref. 45335);  dussumieri: Named for Jean-Jacques Dussumier (1792-1883), a French voyager who collected a large number of zoological specimens in the Indian Ocean between 1816 and 1840 and the collector of one of the syntypes (=a paralectotype).  More on authors: Müller & Henle.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 海洋 礁区鱼类; 深度上下限 ? - 100 m (Ref. 89954).   热带; 30°N - 5°N, 49°E - 84°E

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Indian Ocean: from at least the Persian Gulf to India. Complete distributional range is unknown.
印度-西太平洋: 在阿曼湾与巴基斯坦到印度尼西亚爪哇与阿拉弗拉海 (参考文献 9819) 之间的波斯湾与阿拉伯海,北至日本, 南至澳洲.(参考文献 6871)

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm 64.2, range 60 - 75 cm
Max length : 121 cm TL 雄鱼/尚未辨别雌雄; (Ref. 114871)

简单描述 型态特徵 | 形态测量图

脊椎骨: 113 - 129. This small species is distinguished by the following characters: snout relatively long and narrowly rounded to almost pointed; upper anterior teeth are oblique and blade-like, coarsely serrated, with lateral margin deeply notched and with several large and serrated basal cusplets; lower anterior teeth are narrower, slightly oblique, lateral margins notched and usually without large basal serrae, finely serrated; total tooth row counts 27-29/24-30, or 52-59; interdorsal space often without a ridge, 17.9-20.8% TL; first dorsal fin relatively low and not falcate, origin over middle of pectoral-fin inner margin, length 14.3-16.2% TL, 1.4-1.6 times height, inner margin 2.2-2.5 in base; second dorsal fin is much smaller, broadly triangular, height 32-37% of first dorsal-fin height, origin about opposite anal fin origin; anal fin is slightly falcate, height 1.0-1.2 times second dorsal-fin height, base 0.9-1.1 times second dorsal fin base; body colour pale brownish dorsally, whitish ventrally; second dorsal fin with a black blotch on upper third of fin, not extending onto upper surface of body and very well defined from ground colour, while other fins mostly plain; total vertebral counts 123-138; monospondylous precaudal counts 42-48; diplospondylous precaudal counts 20; diplospondylous caudal counts 59-70; precaudal counts 62-68 (Ref. 89954).
背面浅灰色或灰褐色, 腹面微白色的; 在第二个背鳍上的一个黑色的斑点.(参考文献 9997)

生物学特性     字汇 (例如 epibenthic)

A common but little-known shark found on the continental and insular inshore areas (Ref. 9997). Feeds mainly on fishes but also on cephalopods, and crustaceans (Ref. 6871). Viviparous (Ref. 50449), with a yolk-sac placenta; gives birth to litters of 1-4 (usually 2) pups (Ref. 58048). Pregnant females (79-100.7 cm TL) that were caught contained 2-5 late-term embryos between 32-38.7 cm TL, thus birth size is presumed to be around 37-39 cm TL. From more than 1000 market specimens (in Kuwait, Qatar and Abu Dhabi), size of males and females range from 36-85 cm TL and 36-100.7 cm TL, respectively, with males reaching maturity between 63-80 cm TL (Ref. 89954). Taken in artisanal and small-scale commercial fisheries and marketed for human consumption (Ref. 244). Fins also utilized (Ref. 6871).

一种常见的但是所知极少的鲨鱼发现于大陆与海岛的近海区域了.(参考文献 9997) 主要吃鱼也捕食头足类动物 , 与甲壳动物.(参考文献 6871) 胎生的.(参考文献 50449) 采自了鱼民与小规模商业的渔场而且在市场上销售供人类消费。 (参考文献 244) 鳍也利用。 (参考文献 6871)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Viviparous, placental (Ref. 50449). With 2 to 4 pups in a litter; 37-38 cm at birth (Ref. 244). Both male and females mature at about 70 cm (Ref. 6871). Distinct pairing with embrace (Ref. 205). No distinct seasonal reproductive cycle apparent, instead continuously breeding with most mature females pregnant or spent at any one time (Ref.58048).印度-西太平洋: 在阿曼湾与巴基斯坦到印度尼西亚爪哇与阿拉弗拉海 (参考文献 9819) 之间的波斯湾与阿拉伯海,北至日本, 南至澳洲.(参考文献 6871)

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

White, W.T., 2012. A redescription of Carcharhinus dussumieri and C. sealei, with resurrection of C. coatesi and C. tjutjot as valid species (Chondrichthyes: Carcharhinidae). Zootaxa 3241:1-34. (Ref. 89954)

世界自然保护联盟红皮书 (Ref. 123251)

  濒危 (EN) (A2d+3d); Date assessed: 07 August 2018

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的 (Ref. 9997)





人类利用

渔业: 商业性
FAO(Publication : search) | FishSource | 周边海洋

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Estimates based on models

Preferred temperature (Ref. 115969): 24.2 - 28.5, mean 27.1 °C (based on 230 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00213 - 0.00492), b=3.09 (2.97 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.9   ±0.0 se; based on diet studies.
Generation time: 4.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=2).
脆弱性 (Ref. 59153):  High vulnerability (56 of 100) .
价格分类 (Ref. 80766):   Medium.