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) >
Heterodontiformes (Bullhead and horn sharks) >
Heterodontidae (Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: heteros (Gr.), different; odontos (Gr.), tooth, referring to pointy teeth (for clutching prey) at front of jaws, different than rounded molar-like teeth (for grinding hard-shelled invertebrates) at the back. (See ETYFish); japonicus: -icus, (Gr.) belonging to: Japan, described from a collection of fishes from the seas of Japan. (See ETYFish).
More on authors: Miklouho-Maclay & Macleay.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 6 - 100 m (Ref. 106604). 亞熱帶的; 43°N - 23°N, 118°E - 143°E
Northwest Pacific: off Japan, Korean Republic, northern China including Taiwan Island.
西北太平洋: 日本外，韓國共和國, 中國北部包括台灣島。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 120 cm TL 雄鱼/尚未辨别雌雄; (Ref. 247)
Found near shore on the continental shelf, more commonly on rocky and kelp-covered bottom (Ref. 43278, 11230). Feeds on crustaceans, mollusks (including top shells), small fishes and sea urchins. Oviparous (Ref. 43278, 50449). Grabs prey by protruding its jaw with considerable distance.
在大陆架上发现于靠近海岸了, 更通常在岩石与海藻涵盖的底部上.(参考文献 11230) 吃甲壳动物，软件动物 (包括顶端贝壳) ，小鱼与海胆。 卵生的.(参考文献 50449) 藉由用相当多的距离凸出它的颌捕食猎物。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous. Eggs are laid in rocks or in kelp at depths of about 8 or 9 m and are present from March through September. Eggs are more abundant, however, in March and April. Eggs are hatched in about a year; size at hatching is about 18 cm. There may be a `nest' for several females laying eggs but this is not a true nest. A female lays two eggs at a time, for 6 to 12 spawnings. 西北太平洋: 日本外，韓國共和國, 中國北部包括台灣島。
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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
人类利用
渔业: 低经济
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Estimates based on models
Preferred temperature (Ref.
123201): 16.6 - 23.5, mean 20.5 °C (based on 50 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00166 - 0.00872), b=3.15 (2.95 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.53 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec=12).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
