分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays)
(Bullhead and horn sharks) > Heterodontidae
(Bullhead, horn, or Port Jackson sharks)
Etymology: Heterodontus: Greek, heteros = other + Greek, odous = teeth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
; 海 底生の; 海洋回遊性 (Ref. 51243); 深さの範囲 0 - 275 m (Ref. 26346). Subtropical; 27°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.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm ?, 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; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 0. Harness-like narrow dark stripes on back (Ref. 9838).
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).
Life cycle and mating behavior
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)
CITES (Ref. 115941)
水産業: 少数商業の; 水族館・水槽: 公共の水族館
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 14.1 - 22.6, mean 16.8 (based on 178 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
栄養段階 (Ref. 69278
): 3.5 ±0.48 se; Based on food items.
回復力 (Ref. 69278
): 低い, ４．５年～１４年の倍増期間の最小個体群 (tm=8-10; Fec=10).
Prior r = 0.19, 2 SD range = 0.06 - 0.62, log(r) = -1.66, SD log(r) = 0.6, Based on: 1 K, 4 tgen, 1 tmax, 2 Fec records
弱み (Ref. 59153
): Very high vulnerability (76 of 100) .