इलाज़मौबरांकी (शारक और रेज़) (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 / गहराई सीमा / distribution range
पारिस्थितिकी
समुद्री बाथीड़िमरसल; गहराई सीमा 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 / आकार / वज़न / Age
परिपक्व अवधि: Lm 34.5, range 33 - 36 cm
Max length : 60.0 cm TL पुल्लिंग / अलिंग; (Ref. 247); common length : 45.0 cm TL पुल्लिंग / अलिंग; (Ref. 247); अधिकतम प्रकाशित वज़न: 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 2025-1)
Threat to humans
Harmless
Human uses
मात्स्यिकी: लघु वाणिज्य
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (संदर्भ
123201): 5.8 - 14.2, mean 9.2 °C (based on 392 cells).
Phylogenetic diversity index (संदर्भ
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).
Trophic level (संदर्भ
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.
लौटाव (संदर्भ
120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (Fec=6).
Fishing Vulnerability (Ref.
59153): High vulnerability (63 of 100).
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Climate Vulnerability (Ref.
125649): Low vulnerability (13 of 100).
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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);
