Triakis megalopterus, Sharptooth houndshark : fisheries, gamefish, aquarium

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Triakis megalopterus (Smith, 1839)

Sharptooth houndshark
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Triakis megalopterus   AquaMaps   Data sources: GBIF OBIS
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Image of Triakis megalopterus (Sharptooth houndshark)
Triakis megalopterus
Picture by Zsilavecz, G.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) 白眼鮫目 (Ground sharks) > Triakidae (Houndsharks) 平滑鮫科 (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 生态学

; 海洋 居于水底的; 深度上下限 1 - 50 m (Ref. 5578). 亞熱帶的; 30°S - 36°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

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 / 年龄

Maturity: Lm 145.0, range 140 - 150 cm
Max length : 142 cm TL 雄鱼/尚未辨别雌雄; (Ref. 244); 174.0 cm TL (female); 最大体重: 20.0 kg (Ref. 5485)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 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).
钝的吻与一大的嘴巴有小的尖齿; 尾柄短与重的.(参考文献 5578) 灰色的有很多的黑色斑点那可能是稀疏或一些鱼种没有; 新生的幼胎有较少的黑色斑点相较于成鱼;(参考文献 5485) 腹面白色的.(参考文献 5578)

生物学特性     字汇 (例如 epibenthic)

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).

生存沙滩外,岩岸与在浅湾中.(参考文献 5578) 吃螃蟹,龙虾,硬骨鱼与小的鲨鱼。 (参考文献 5578) 卵胎生的.(参考文献 50449) 在夏天形成鱼群。 (参考文献 244) 强壮且保存良好在繁殖场.(参考文献 244) 通常被矶钓与滩钓者捕获了但是不多吃.(参考文献 244) 具有相当高的价格肉被乾制成鲨鱼 '乾肉片' 或者薄片。 (参考文献 244) 达到 160 公分, TL 。 (参考文献 36731)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

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。

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

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)

世界自然保护联盟红皮书 (Ref. 125652)

  最不相关 (LC) ; Date assessed: 01 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 低经济; 游钓鱼种: 是的; 水族馆: 公众的水族馆
FAO - 渔业: landings; Publication: search | FishSource | 周边海洋

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卵的发育
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眼睛色素

工具

特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - 渔业: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | 公众的水族馆 | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录

Estimates based on models

Preferred temperature (Ref. 115969): 15.8 - 22.4, mean 19.3 °C (based on 26 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00251 (0.00115 - 0.00551), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.0   ±0.5 se; based on diet studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=6).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .
价格分类 (Ref. 80766):   High.