أشلاق (القروش و الشفانين) (sharks and rays) >
Squaliformes (Sleeper and dogfish sharks) >
Etmopteridae (Lantern sharks)
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية المعيشة; نطاق العمق 70 - 2490 m (Ref. 106604), usually 200 - 500 m (Ref. 128537). Deep-water; 73°N - 38°S, 40°W - 36°E
Eastern Atlantic: Iceland, Norway, and the western Mediterranean to Morocco, Senegal, Sierra Leone, Côte d'Ivoire to Nigeria, Cameroon to Gabon, Azores, Cape Verde, and Cape Province, South Africa (Ref. 247).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 34.5, range 33 - 36 cm
Max length : 60.0 cm TL ذكر/ مختلط الجنس; (Ref. 247); common length : 45.0 cm TL ذكر/ مختلط الجنس; (Ref. 247); أعلا وزن تم نشرة: 850.00 g (Ref. 40637)
Found on the outer continental shelves and upper slopes. Feeds on small fishes, squids, and crustaceans. Ovoviviparous, with number of young from 6 to 20 in a litter. Utilized for fishmeal and prepared dried salted for human consumption. Depth range reported at 70m-2000m in Ref. 35388.
Distinct pairing with embrace (Ref. 205).
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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
مصائد: غير مهمة تجارياً
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 5.8 - 14.2, mean 9.2 °C (based on 392 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00284 - 0.00405), b=3.06 (3.01 - 3.11), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.1 ±0.2 se; based on diet studies.
Generation time: 6.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
المرونه (Ref.
120179): منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec=6).
Fishing Vulnerability (Ref.
59153): High vulnerability (63 of 100).
Climate Vulnerability (Ref.
125649): Low vulnerability (13 of 100).
Nutrients (Ref.
124155): Calcium = 9.76 [1.96, 51.89] mg/100g; Iron = 0.36 [0.08, 1.19] mg/100g; Protein = 19.3 [16.7, 21.6] %; Omega3 = 0.351 [0.129, 1.142] g/100g; Selenium = 16 [5, 48] μg/100g; VitaminA = 15.4 [3.4, 70.8] μg/100g; Zinc = 0.312 [0.149, 0.618] mg/100g (wet weight);
