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Galeus polli Cadenat, 1959

African sawtail catshark
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Galeus polli   AquaMaps   Data sources: GBIF OBIS
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Image of Galeus polli (African sawtail catshark)
Galeus polli
Picture by FAO

Congo (Kinshasa) country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

Chien râpe, Pintarroja africana, قِرش قِطّ مِنشار إفريقي, ... more

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) > Pentanchidae (Deepwater catsharks)
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others. (See ETYFish);  polli: In honor of Belgian ichthyologist Max Poll (1908-1991), who first brought attention to this species. (See ETYFish).

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

海洋 深海底的; 深度上下限 200 - 720 m (Ref. 244), usually 300 - 500 m (Ref. 9996).   深水域; 26°N - 26°S

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

Eastern Atlantic: southern Morocco to Namibia (Ref. 244).
東大西洋: 摩洛哥南部到那米比亞。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 30.5  range ? - ? cm
Max length : 45.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5578)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 0; 臀棘: 0. A long-nosed, dwarf catshark with a narrow head, large eyes, and small labial furrows; upper caudal fin margin with prominent crest of enlarged sawtooth-like denticles (Ref. 5578). Pale brown, paler ventrally; juveniles have dark saddles that become less prominent in adults (Ref. 5510).
一個長鼻又矮小的貓鯊具有一個狹窄的頭部，大的眼與小的唇溝; 上尾部的鰭邊緣有增大像鋸齒一樣的細齒的突出冠。 (參考文獻 5578) 白褐色, 腹側灰白的; 稚魚有變成比較不突出當成魚時的黑的鞍狀斑。 (參考文獻 5510)

生物學特性     字彙 (例如 epibenthic)

Found on the outermost shelf and upper slope. Feeds mainly on small bony fish, including lanternfish, hakes, grenadiers, rockfish and lightfish, also squid and crustaceans. Ovoviviparous (Ref. 50449). Tolerates bottom with low oxygen levels (Ref. 5578). Utilized fresh (Ref. 244).

棲息於最外的大陸棚與上層斜坡了。 主要吃小的硬骨魚，包括燈籠魚，鱈魚，鱈魚，礁石魚類與燈眼魚，也捕食烏賊與甲殼動物。 卵胎生的.(參考文獻 50449) 容忍低溶氧量的底層水域。 (參考文獻 5578) 生鮮使用.(參考文獻 244)

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

Eggs are sometimes fertilized internally by accident via close apposition of gonopores in otherwise oviparous fishes and may be retained within the female's body and complete some of the early stages of embryonic development. Embryos feed solely on yolk (Ref. 50449). Bears up to 12 young (Ref. 5578), size at birth 11-12 cm (Ref. 5510).東大西洋: 摩洛哥南部到那米比亞。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 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)

IUCN 瀕危狀態 (Ref. 130435)

  次級保育類動物, 見 IUCN 紅皮書 (VU) (A2d); Date assessed: 31 August 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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漁業: 低經濟
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Estimates based on models

Preferred temperature (Ref. 115969): 6.7 - 11, mean 8.7 (based on 38 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00140 - 0.00375), b=3.06 (2.92 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  4.2   ±0.7 se; based on diet studies.
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Fec=12).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (35 of 100).
價格種類 (Ref. 80766):   Low.