分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Carcharhiniformes (Ground sharks)
真鯊目 (Ground sharks) >
Triakidae (Houndsharks)
平滑鮫 (Houndsharks) > Triakinae
Etymology: Triakis: tri-, from tres (L.), three; akis (Gr.), point, referring to each tooth consisting of one large central cusp flanked on by both sides by a small cusplet. (See ETYFish); megalopterus: mega-, from megas (Gr.), large; pterus (Gr.), fin, referring to its broad, large fins. (See ETYFish).
More on author: Smith.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 1 - 50 m (Ref. 5578). 亞熱帶的; 30°S - 36°S
Southeast Atlantic: Namibia to Coffee Bay, South Africa.
東南大西洋: 那米比亞到南非的咖啡灣。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 145.0, range 140 - 150 cm
Max length : 142 cm TL 雄魚/尚未辨別雌雄; (Ref. 244); 174.0 cm TL (female); 最大體重: 20.0 kg (Ref. 5485)
背棘 (總數): 0; 背的軟條 (總數): 0; 臀棘 0; 臀鰭軟條: 0. Blunt snout and a large mouth with small pointed teeth; caudal peduncle short and heavy (Ref. 5578). Grey with numerous black spots which may be sparse or absent in some specimens; new born pups with fewer black spots compared to adults (Ref. 5485); white below (Ref. 5578).
鈍的吻與一大的嘴巴有小的尖齒; 尾柄短與重的.(參考文獻 5578) 灰色的有很多的黑色斑點那可能是稀疏或一些魚種沒有; 新生的幼胎有較少的黑色斑點相較於成魚;(參考文獻 5485) 腹面白色的.(參考文獻 5578)
Occurs off sandy beaches, rocky shores and in shallow bays (Ref. 5578). Feeds on crabs, lobsters, bony fish and small sharks (Ref. 5578). Ovoviviparous (Ref. 50449). Forms schools in summer (Ref. 244). Hardy and keeps well in captivity (Ref. 244). Commonly caught by rock and surf sports anglers but not eaten much (Ref. 244). Meat is dried into shark 'biltong' or jerky which commands a relatively high price (Ref. 244). Attains 160 cm, TL (Ref. 36731).
生存沙灘外，岩岸與在淺灣中.(參考文獻 5578) 吃螃蟹，龍蝦，硬骨魚與小的鯊魚。 (參考文獻 5578) 卵胎生的.(參考文獻 50449) 在夏天形成魚群。 (參考文獻 244) 強壯且保存良好在繁殖場.(參考文獻 244) 通常被磯釣與灘釣者捕獲了但是不多吃.(參考文獻 244) 具有相當高的價格肉被乾製成鯊魚 '乾肉片' 或者薄片。 (參考文獻 244) 達到 160 公分， TL 。 (參考文獻 36731)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Ovoviviparous, embryos feed solely on yolk (Ref. 50449), with 6 to 12 young in a litter (Ref. 244). 30-32 cm at birth (Ref. 244).東南大西洋: 那米比亞到南非的咖啡灣。
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)
人類使用
漁業: 低經濟; 游釣魚種: 是的; 水族館: 公眾的水族館
更多資訊
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Preferred temperature (Ref.
123201): 15.8 - 22.4, mean 19.3 °C (based on 26 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00240 (0.00110 - 0.00521), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.0 ±0.5 se; based on diet studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=6).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
