分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (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); portusjacksoni: Of Port Jackson, Sydney, New South Wales, near Botany Bay, type locality (See ETYFish).
Eponymy: As the name implies, this shark is named after a place: Port Jackson, Sydney, New South Wales, near Botany Bay, where the type specimen was collected. [...] (Ref. 128868), visit book page.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の; 海洋回遊性 (Ref. 51243); 深さの範囲 0 - 275 m (Ref. 26346). Subtropical; 23°S - 44°S, 112°E - 154°E
Western Pacific: southern Australia (including Western Australia) and one record from New Zealand. Heterodontus bona-spei from South Africa probably refers to this species.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 87.5, range 80 - 95 cm
Max length : 165 cm TL オス/雌雄の選別がない; (Ref. 247); common length : 137 cm TL オス/雌雄の選別がない; (Ref. 247)
背面の脊椎 (合計) : 2; 肛門の骨: 0. Harness-like narrow dark stripes on back (Ref. 9838).
Body shape (shape guide): elongated.
A common shark of the continental shelves (Ref. 9838), from close inshore at the intertidal zone to 275 m (Ref. 6871). Segregates by sex and maturity stage (Ref. 6871). Nocturnal, hides in caves and rocky gullies during the day (Ref. 6871). Feeds on benthic invertebrates, primarily echinoderms (Ref. 247). Oviparous (Ref. 50449). Eggs with spiral flanges but lack tendrils (Ref. 6871). Undergoes yearly migrations to spawning sites during breeding season (Ref. 247). Considered harmless to people, but can deliver a painful nip when provoked (Ref. 247).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oviparous. Distinct pairing with embrace (Ref. 205). Undergoes yearly migrations to breeding sites. Females lay about 10 to 16 (commonly 10-12) eggs in rock crevices on shallow sheltered reefs at depths of 1-5 m (rarely 20-30 m) during August and September (rarely in July and October). In captivity, females lay 2 eggs a day every 8-17 days. Eggs are hatched after 9-12 months and young then move into nursery areas in bays and estuaries. After the breeding season, males move into deeper waters followed by the females in late September or October.
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 少数商業の; 水族館・水槽: 公共の水族館
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
好ましい温度 (参照
123201): 14.1 - 22.6, mean 16.8 °C (based on 178 cells).
系統多様性指数 (参照
82804): PD
50 = 0.5029 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00258 - 0.00466), b=3.17 (3.08 - 3.26), in cm total length, based on LWR estimates for this species (Ref.
93245).
栄養段階 (参照
69278): 3.5 ±0.48 se; based on food items.
回復力 (参照
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (tm=8-10; Fec=10).
漁業の脆弱性 (Ref.
59153): High to very high vulnerability (72 of 100).
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栄養素 (Ref.
124155): Calcium = 17.6 [3.6, 78.9] mg/100g; Iron = 0.653 [0.164, 1.934] mg/100g; Protein = 19.2 [17.1, 21.1] %; Omega3 = 0.215 [0.096, 0.466] g/100g; Selenium = 34.5 [10.4, 97.4] μg/100g; VitaminA = 5.8 [1.9, 16.9] μg/100g; Zinc = 0.526 [0.262, 0.951] mg/100g (wet weight);