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Squaliformes (Sleeper and dogfish sharks) >
Etmopteridae (Lantern sharks)
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335).
Eponymy: Dr Leonard Joseph Victor Compagno (d: 1943) is an American ichthyologist, internationally recognized as authority on shark taxonomy. [...] (Ref. 128868), visit book page.
More on authors: Fricke & Koch.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري; نطاق العمق 383 - 1300 m (Ref. 106604). Deep-water
Southeast Atlantic: off southwestern Cape Province and northern Natal in South Africa (Ref. 6577, 11228). Etmopterus compagnoi was formerly confused with Etmopterus gracilispinis Krefft 1968 which also occurs off the eastern Cape and northern Natal.
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm ?, range 55 - ? cm
Max length : 78.0 cm TL ذكر/ مختلط الجنس; (Ref. 11228)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
Dark brown in color with no conspicuous flank margins (Ref. 6577).
Found in deep water. Males mature at 55 cm. Ovoviviparous (Ref. 205).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Distinct pairing with embrace (Ref. 205).
Heemstra, P.C., 1995. Additions and corrections for the 1995 impression. p. v-xv. In M.M. Smith and P.C. Heemstra (eds.) Revised Edition of Smiths' Sea Fishes. Springer-Verlag, Berlin. (Ref. 11228)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 5.2 - 10.9, mean 8.8 °C (based on 22 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00194 - 0.00745), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.3 ±0.3 se; based on diet studies.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (51 of 100).