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Rhizoprionodon oligolinx  Springer, 1964

Grey sharpnose shark
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Rhizoprionodon oligolinx   AquaMaps   Data sources: GBIF OBIS
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Image of Rhizoprionodon oligolinx (Grey sharpnose shark)
Rhizoprionodon oligolinx
Picture by Osmany, H.B.

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) > Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: Greek, rhiza = root + Greek, prion = saw + Greek, odous = teeth (Ref. 45335).

环境 / 气候 / 范围 生态学

; 海洋 礁区鱼类; 深度上下限 0 - 36 m (Ref. 9997).    , preferred ?; 30°N - 18°S

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Indo-West Pacific: Persian Gulf east to Thailand, Indonesia, China, and Japan. Recorded from the Gulf of Carpentaria (Ref. 6871) and Palau (Ref. 244). This species is very close to Rhizoprionodon taylori, but is geographically separated from it (Ref. 244).

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 32 - 41 cm
Max length : 70.0 cm TL (female)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 0. Position of anal fin origin well in front of second dorsal fin origin, long labial furrows, and short pectoral fins (Ref. 37816).

生物学特性     字汇 (例如 epibenthic)

A little known inshore and offshore shark found on continental and insular shelves (Ref. 244). Found to depths of at least 36 m (Ref. 9997). Probably feeds on fishes, cephalopods, and crustaceans (Ref. 6871). Viviparous (Ref. 50449). Commonly caught by inshore demersal gillnet fisheries, especially off Java (Ref.58048). Utilized fresh and probably dried salted for human consumption (Ref. 244). Also used for fishmeal (Ref. 9997) and fins (Ref.58048). Minimum depth from Ref. 58018.

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

Viviparous, placental (Ref. 50449). With 3 to 5 young per litter (Ref. 244, 37816). Size at birth 20-30 cm TL (Ref. 9997, 37816). Distinct pairing with embrace (Ref. 205).

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

世界自然保护联盟红皮书 (Ref. 115185)

  最不相关 (LC) 

CITES (Ref. 94142)

Not Evaluated

对人类的威胁

 




人类利用

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

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00222 - 0.01031), b=3.11 (2.93 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.1   ±0.55 se; Based on food items.
回复力 (Ref. 69278):  非常低的, 最小族群倍增时间超过14 年 (Fec=3).
脆弱性 (Ref. 59153):  Moderate vulnerability (39 of 100) .
价格分类 (Ref. 80766):   Medium.