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Squalus montalbani Whitley, 1931

Philippiines spurdog
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Squalus montalbani   AquaMaps   Data sources: GBIF OBIS
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Image of Squalus montalbani (Philippiines spurdog)
Squalus montalbani
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Philippines country information

Common names: Philippiines spurdog
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality: off Sombrero Island, west coast Luzon Island, USNM 70256 (holotype of Squalus montalbani, 31.1 cm TL, immature male). Also known from Aliguay Island (Ref. 58441).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Last, P.R., W.T. White and H. Motomura, 2007
National Database:

Common names from other countries

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | 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).
  More on author: Whitley.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 深海底的; 深度上下限 154 - 1370 m (Ref. 58048), usually 383 - 670 m (Ref. 58441).   

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Eastern Indian Ocean to Pacific: warm temperate to tropical waters; Australia to the Philippines; north to Taiwan, including Indonesia.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 84.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 58441); 94.5 cm TL (female)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

This large species of the ‘mitsukurii group’ is distinguished by the following set of characters: body elongate to robust, trunk depth 8.9-13.4% TL (mean 11.4% TL, n=14); snout is broadly triangular, with mouth width 1.69-2.32 (1.85) times the horizontal prenarial length; pre-first dorsal length 26.5-30.7 (29.0)% TL; pre-second dorsal length 57.6-62.8 (60.8)% TL; interdorsal space 21.7-25.9 (23.7)% TL; low raked dorsal fins; second dorsal-fin length 11.1-13.9 (12.4)% TL, height 3.4-4.6 (4.0)% TL, inner margin length 4.0-5.9 (4.8)% TL; second dorsal-fin base 15.8-21.3 (20.8) times the base of second dorsal spine; pre-pectoral length 20.8-22.9 (22.0)% TL; pelvic-caudal space 22.9-26.0 (24.0)% TL; caudal bar is almost upright, extending broadly from the caudal fork up the poster or margin of the upper lobe for about 0.6 of its length in immature specimens, upper caudal fringe forming a deep saddle along midlength of lobe; flank denticles tricuspid; monospondylous centra 41-47 (mainly 42-44), precaudal centra 79-85, total centra 105-114 (Ref. 58441).

生物學特性     字彙 (例如 epibenthic)

Occurs on or near the bottom of upper continental and insular slopes. Viviparous with yolk-sac dependency; gives birth to 4-16 pups, gestation unknown. Feeds mainly on small fishes, cephalopods, and crustaceans. Usually caught by demersal longline fisheries operating in deepwater. Marketed for its meat, fins, and liver oil which has a high value (Ref. 58048).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

Distinct pairing with embrace (Ref. 205).

主要參考資料 Upload your references | 參考文獻 | 合作者 : Compagno, Leonard J.V. | 合作者

Last, P.R., W.T. White and H. Motomura, 2007. Description of Squalus chloroculus sp. nov., a new spurdog from southern Australia, and the resurrection of S. montalbani Whitley. p. 55-69. 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 p. (Ref. 58441)

IUCN 瀕危狀態 (Ref. 130435)

  次級保育類動物, 見 IUCN 紅皮書 (VU) (A2bd+3d); Date assessed: 03 August 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 




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Estimates based on models

Preferred temperature (Ref. 115969): 6.6 - 11.9, mean 8.6 (based on 239 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00162 - 0.00707), b=3.10 (2.93 - 3.27), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.4   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  非常低的, 最小族群倍增時間超過14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  High vulnerability (58 of 100).