(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); melastomus: melas (Gr.), black; stoma (Gr.), mouth, referring to color inside of mouth (common in congeners but quickly lost after preservation) (See ETYFish).
More on author: Rafinesque.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 55 - 1873 m (Ref. 55744), usually 150 - 1200 m (Ref. 35388). Deep-water; 64°N - 12°N, 19°W - 37°E
Northeast Atlantic: Faeroe Islands and Trondheim, Norway southward to Senegal. Mediterranean Sea.
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm 64.7, range 56 - ? cm
Max length : 75.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 40637); 90.0 cm TL (female); common length : 50.0 cm TL جنس نر / بدون خواص جنسي; (Ref. ); بيشينه وزن گزارش شده: 1.4 kg (Ref. 40637)
Depth range is reported at 55m-1200m in Ref. 9996. Found on the outer continental shelves and upper slopes. Feeds mainly on bottom invertebrates, including shrimps and cephalopods, but also on small pelagic bony fishes (lanternfishes) and other small elasmobranchs. Oviparous, with up to 13 eggs present in the oviducts at one time. Individuals from the Ionian Sea apparently reproduces from end of February to September and eggs are laid between 200 and 600 meters (Ref. 87978). Utilized fresh and dried-salted for human consumption, and for leather.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Oviparous, embryos feed solely on yolk (Ref. 50449).
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): 4.4 - 14.4, mean 10.3 °C (based on 708 cells).
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00227 - 0.00319), b=3.02 (2.97 - 3.07), in cm total length, based on LWR estimates for this species (Ref.
93245).
سطح تروفیک (مرجع
69278): 4.2 ±0.3 se; based on diet studies.
Generation time: 2.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
جهندگی (مرجع
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Fec assumed to be <100).
آسیبپذیری ماهیگیری (Ref.
59153): Moderate vulnerability (35 of 100).
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آسیبپذیری اقلیمی (Ref.
125649): Low to moderate vulnerability (33 of 100).
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مواد مغذی (Ref.
124155): Calcium = 8.06 [1.47, 47.91] mg/100g; Iron = 0.295 [0.068, 1.009] mg/100g; Protein = 17.4 [14.2, 20.4] %; Omega3 = 0.236 [0.093, 0.596] g/100g; Selenium = 9.89 [3.48, 29.10] μg/100g; VitaminA = 8.26 [1.72, 37.11] μg/100g; Zinc = 0.332 [0.159, 0.622] mg/100g (wet weight); based on
nutrient studies.
