分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (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
生态学
海洋 居于水底的; 深度上下限 ? - 59 m (Ref. 244). 熱帶; 30°N - 10°S
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.
印度-西太平洋: 波斯灣 (參考文獻 13567) ，巴基斯坦，印度，斯里蘭卡，新加坡，泰國，越南，中國，台灣，爪哇與印尼的蘇拉威西。 這一個名稱已經在 Hemipristis elongatus 之外的印度- 巴基斯坦水域被不加選擇地為半鋸尾鮫科的這三個種使用。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 82.5, range 68 - 97 cm
Max length : 100.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 244)
背棘 (总数) : 0; 臀棘: 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).
青铜灰色的上方, 腹面白色的新鲜时, 褪成略灰色或灰褐色的在保存的状况，背鳍时常有暗淡的或黑色的顶端.(参考文献 13567)
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).
一种常见的岸边与外海的鲨鱼发现于大陆架与岛屿棚了。 (参考文献 13567) 可能吃小鱼，头足类动物与甲壳动物。 (参考文献 244) 胎生的.(参考文献 50449) 无论它在何处出现可能被渔民捕获。 (参考文献 13567) 生鲜使用供人类消费与副产物加工成鱼粉了。 (参考文献 244)
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).印度-西太平洋: 波斯灣 (參考文獻 13567) ，巴基斯坦，印度，斯里蘭卡，新加坡，泰國，越南，中國，台灣，爪哇與印尼的蘇拉威西。 這一個名稱已經在 Hemipristis elongatus 之外的印度- 巴基斯坦水域被不加選擇地為半鋸尾鮫科的這三個種使用。
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)
人类利用
渔业: 低经济
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Estimates based on models
Preferred temperature (Ref.
123201): 25 - 29.3, mean 28.4 °C (based on 1082 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
营养阶层 (Ref.
69278): 4.2 ±0.57 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=4).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).
