Carcharhinus porosus (Ranzani, 1839)
Smalltail shark
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Carcharhinus porosus AquaMaps Data sources: GBIF OBIS |
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画像 | グーグルの画像
Carcharhinus porosus
画像によって Carvalho Filho, A.
画像 | グーグルの画像
画像によって Carvalho Filho, A.
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) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); porosus: Latin for pored or full of holes, probably referring to large and conspicuous pores behind eye (See ETYFish).
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); porosus: Latin for pored or full of holes, probably referring to large and conspicuous pores behind eye (See ETYFish).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
海; 汽水性の 底生の; 深さの範囲 ? - 36 m (Ref. 9253), usually 16 - 32 m (Ref. 96339). Subtropical; 33°N - 36°S, 116°W - 33°W (Ref. 55189)
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Western Atlantic: upper Gulf of Mexico, to southern Brazil; recorded from Uruguay (Ref. 58839). Specimens of porosus from Borneo, Viet Nam and Thailand may represent an undescribed small species of Carcharhinus.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 70.0 range ? - 84 cm
Max length : 150 cm TL オス/雌雄の選別がない; (Ref. 244); common length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 9253)
Max length : 150 cm TL オス/雌雄の選別がない; (Ref. 244); common length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 9253)
簡単な記述 検索表 | 形態学 | 形態計測学
This species is a smooth-backed (lacking an interdorsal ridge) shark, with a low first dorsal fin originating over or behind the pectoral fin free rear tip. Adults' first dorsal fin anterior margin (from the origin of the fin to its apex) is as long as the distance from the apex to the free rear tip, so that apex makes an equilateral triangle with its origin and free rear tip; height of the first dorsal fin is about 8-9% of the total length. The second dorsal fin originates over the midpoint of the anal fin base. The caudal fin measures about one fourth of the total length. A series of conspicuous pores (hyomandibular pores) are located behind the eye. The upper teeth have long triangular cusps that become increasingly oblique towards the corners of the mouth, these have a weak notch or lack a notch on their medial edges, and a strong notch on the outer edges. Edges of the first four teeth have coarse serrations from the bases up to the notch and finer serrations from the notch to the tip and these coarse serrations disappear by the fifth or sixth tooth. Subsequent teeth have inner edges with uniform fine serrations from base to tip. The five or six outermost upper teeth have strongly oblique cusps with nearly straight inner margins and a strong notch on the outer margin while the lower teeth are erect and have cusps with a few coarse serrations at their bases and finer serrations towards the tips. Teeth number U:14-1-14; L:13-13. Dermal denticles are characteristic with a central strong ridge terminating in a long point, and two shorter ridges on wing-like sides; dorsal surface of the denticles has a coarse microsculpture. Body color gray above and dirty white below, unmarked fins (Ref. 86285).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Found in the continental shelves, preferably over muddy bottoms, and especially in estuaries. Feeds mainly on small fishes including young hammerhead and sharpnose sharks, and shrimps. Viviparous, with 2 to 7 young in a litter. Size at birth between 31 and 40 cm. Utilized fresh for human consumption and processed for fishmeal, and liver extracted for oil.
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター : Compagno, Leonard J.V. | 協力者
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅寸前の危機的状況 (CR) (A2d); Date assessed: 21 June 2019
人間に対する脅威
Harmless
人間の用途
水産業: 少数商業の
FAO - 水産業: landings search; Publication: search | FIRMS - Stock assessments | FishSource | 私達の周りの海
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毒性（LC50）
体組成
栄養素
酸素消費
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病気と寄生虫
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インターネットの情報源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: 部類, 種 | DiscoverLife | ECOTOX | FAO - 水産業: landings search; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | GoMexSI (interaction data) | Google Books | Google Scholar | Google | IGFA World Record | 国のデーターベース | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 生命の木 | Wikipedia: 行く, 検索する | World Records Freshwater Fishing | 動物に関する記録
モデルに基づく推定値
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系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00407 (0.00247 - 0.00672), b=3.06 (2.92 - 3.20), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
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栄養段階 (参照 69278) |
4.1 ±0.6 se; based on diet studies. |
| Generation time | 14.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
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回復力 (参照 120179) |
非常に低い, １４年以上の倍増期間の最小個体群 (K=0.08; tm=6; tmax=12; assuming Fec<10). |
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漁業の脆弱性 (Ref. 59153) |
Very high vulnerability (77 of 100). 🛈 |
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価格帯 (Ref. 80766) |
Medium. |