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Lamniformes (Mackerel sharks) >
Lamnidae (Mackerel sharks or white shark)
Etymology: Lamna: From the Greek lamia, a large and voracious shark, originally from Lamia in Greek mythology, daughter of King Belos, who revenged the murder of her children by killing the children of others, and who behaved so cruelly that her face turned into a nightmarish mask (See ETYFish); ditropis: di-, from dis (L.), in two; tropis (Gr.), keel, i.e., double-keeled, referring to the rudder-like projections on either side of tail (See ETYFish).
Eponymy: The genus name comes from the Greek lamia, a large and voracious shark. [...] (Ref. 128868), visit book page.
More on authors: Hubbs & Follett.
Περιβάλλον: περιβάλλον / κλιματική ζώνη / εύρος βάθους / εύρος διανομής
Οικολογία
Θαλασσινό(ά) pelagic-oceanic; ωκεανόδρομο(ς) (Ref. 87829); εύρος βάθους 0 - 650 m (Ref. 50550), usually 0 - 152 m (Ref. 55221). Boreal; 66°N - 22°N, 120°E - 115°W
North Pacific: Japan, Korea, and the Sea of Okhotsk to the Bering Sea and southward to southern California, USA (Ref. 247) and Baja California, Mexico (Ref. 9253).
Μήκος κατά την πρώτη ωρίμανση / Μέγεθος / Βάρος / Ηλικία
Γεννητική Ωρίμανση: Lm ?  range ? - 221 cm
Max length : 305 cm TL αρσενικό/απροσδιόριστο; (Ref. 247); common length : 180 cm TL αρσενικό/απροσδιόριστο; (Ref. 9988); μεγ. δημοσιευμένο βάρος: 175.0 kg (Ref. 9988); μεγ. αναφερόμενη ηλικία: 27 έτη (Ref. 119696)
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0. First dorsal fin uniformly dark, no light rear tip; ventral surface of body white with dusky blotches (Ref. 247).
Body shape (shape guide): fusiform / normal.
A coastal-littoral and epipelagic shark that prefers boreal to cool temperate waters, from the surface to at least 152 m, and is common in continental offshore waters but range inshore to just off beaches. Occurs singly or in schools or feeding aggregations of several individuals; feeds on fishes (Ref. 247). Seasonally migratory (following food prey) and segregate by age and sex where adults move further north than young (Ref. 58085). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). With up to 4 young in a litter (Ref. 247). Fast swimmer (Ref. 9988). Potentially dangerous but has never or seldom been implicated in human attacks (Ref. 247). Causes considerable damage to commercial catches and gear (Ref. 6885). Utilized fresh, dried or salted, and frozen; fins, hides and livers are also used, with fins having particular value; can be broiled and baked (Ref. 9988). Reported to attain at least 27 years of age and reach maximum depth of at least 792 m (in Ref. 119696).
Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). Litter size is up to 4 young (Ref. 247). 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)
Κατάσταση Κόκκινου Καταλόγου IUCN (Ref. 130435: Version 2025-2 (Global))
Απειλή για τον άνθρωπο
Traumatogenic
Ανθρώπινες χρήσεις
αλιεία: περιορισμένης εμπορικότητας; αλιεία αναψυχής: ναί
Εργαλεία
Ειδικές εκθέσεις
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Δείκτης φυλογενετικής ποικιλότητας (Αναφ. 82804) |
PD50 = 0.7813 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00933 (0.00410 - 0.02122), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Τροφικό Επίπεδο (Αναφ. 69278) |
4.5 ±0.80 se; based on food items. |
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Generation time |
6.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Ελαστικότητα (Αναφ. 120179) |
Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec=4). |
Ευπάθεια στην αλιεία (Ref. 59153) |
High vulnerability (59 of 100). 🛈 |
Κατηγορία τιμής (Ref. 80766) |
Unknown.
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Θρεπτικά συστατικά (Ref. 124155) |
Calcium = 3.95 [1.03, 23.07] mg/100g; Iron = 0.366 [0.089, 1.235] mg/100g; Protein = 19.5 [17.2, 22.0] %; Omega3 = 0.396 [0.154, 1.000] g/100g; Selenium = 14.3 [3.8, 43.3] μg/100g; VitaminA = 5.42 [1.11, 26.30] μg/100g; Zinc = 0.185 [0.091, 0.353] mg/100g (wet weight); |