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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. |
| Squalus nasutus AquaMaps Data sources: GBIF OBIS |
分類 / 名稱 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) > Squaliformes (Sleeper and dogfish sharks) 角鯊目 (Sleeper and dogfish sharks) > Squalidae (Dogfish sharks) 棘鮫科 (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436); nasutus: Name from Latin 'nasutus' meaning large-nosed, referring to its elongated prenarial snout.
More on authors: Last, Marshall & White.
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436); nasutus: Name from Latin 'nasutus' meaning large-nosed, referring to its elongated prenarial snout.
More on authors: Last, Marshall & White.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Eastern Indian Ocean: Western Australia. Probably extending to Westerm Pacific, the Philippines and Indonesia.
初熟時的長度 / 大小 / 重量 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
This small species of the ‘japonicus group’ has the following set of characters: very elongate body, depth 9.4-11.4% TL; narrow and long snout, preoral length 1.85-2.01 times its horizontal prenarial length, 11.1-11.7% TL; large eyes, 4.3-5.1% TL; secondary lobe of anterior nasal flap is well developed; small, raked dorsal fins; first dorsal-fin spine short, weak; second dorsal-fin spine short with strong base; pectoral fin of adult not falcate; pectoral-fin inner margin is short, 6.6-7.1% TL; caudal bar almost upright, short, broad, extending from the caudal fork to the posterior margin of the upper lobe for 0.4-0.5 of its length, upper caudal blotch is somewhat linear, and is located near the dorsal margin of fin lobe; flank denticles weakly tricuspidate; monospondylous centra 36-39, precaudal centra 78-81, total centra 103-109 (Ref. 58443).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Occurs on or near the bottom of the upper continental slope at 298-850 m; viviparous with yolk-sac dependency; no reproductive and diet data are available, however, it is presumed that the species feeds on small fishes, cephalopods, and crustaceans (Ref. 58048). Trawled mainly in 300-400 m (Ref. 58443). Marketed for its meat, fins, and liver oil which is of high value (Ref. 58048).
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairing with embrace (Ref. 205).
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 : Compagno, Leonard J.V. | 合作者
Last, P.R., L.J. Marshall and W.T. White, 2007. Squalus nasutus sp. Nov., a new long-snout spurdog of the 'japonicus-group' from the Inidan Ocean. pp. 83-90. In P.R. Last, W.T. White and J.J. Pogonoski Descriptions of new dogfishes of the genus Squalus (Squaloidea:Squalidae). CSIRO Marine and Atmospheric Research Paper No. 014. 130 pp. (Ref. 58443)
CITES
Not Evaluated
對人類具威脅
人類使用
漁業: 潛在的興趣
FAO - Publication: search | FishSource |
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網路資源
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基於模型的估計
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系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00355 (0.00168 - 0.00751), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
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營養階層 (參考文獻 69278) |
4.0 ±0.4 se; based on size and trophs of closest relatives |
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回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.). |
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釣魚的脆弱性 (Ref. 59153) |
High vulnerability (55 of 100). 🛈 |