(كوسه ها و سپرماهيان) (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).
Eponymy: Dr Max Fernand Leon Poll (1908–1991) was a Belgian ichthyologist, and ‘connoisseur of the fish fauna’. [...] (Ref. 128868), visit book page.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي موجوداتی که در اعماق زیر 200 متر زندگی و تغذیه می کنند; تغييرات عمق 200 - 720 m (Ref. 244), usually 300 - 500 m (Ref. 9996). Deep-water; 26°N - 26°S
Eastern Atlantic: southern Morocco to Namibia (Ref. 244).
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm 30.5  range ? - ? cm
Max length : 45.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 5578)
خارهاي باله پشتي (کل) : 0; خارهاي باله مخرجي: 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).
Body shape (shape guide): elongated.
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).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
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).
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
دمای ترجیحی (مرجع
123201): 6.7 - 11, mean 8.7 °C (based on 38 cells).
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00141 - 0.00371), b=3.06 (2.92 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
سطح تروفیک (مرجع
69278): 4.2 ±0.7 se; based on diet studies.
جهندگی (مرجع
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Fec=12).
آسیبپذیری ماهیگیری (Ref.
59153): Low to moderate vulnerability (35 of 100).
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مواد مغذی (Ref.
124155): Calcium = 10.4 [1.8, 67.5] mg/100g; Iron = 0.351 [0.075, 1.198] mg/100g; Protein = 17 [14, 20] %; Omega3 = 0.218 [0.089, 0.525] g/100g; Selenium = 6.92 [2.23, 20.67] μg/100g; VitaminA = 21.2 [4.5, 99.2] μg/100g; Zinc = 0.409 [0.190, 0.785] mg/100g (wet weight);