Elasmobranchii (sharks and rays) > Lamniformes
(Mackerel sharks) > Odontaspididae
Etymology: Odontaspis: Greek, odous = teeth + Greek, aspis, -idos = shield (Ref. 45335).
Environment / Climate / Range
Marine; pelagic-oceanic; depth range 60 - 1000 m (Ref. 10722). Deep-water; 31°N - 34°S, 163°W - 27°W (Ref. 54682)
Length at first maturity / Size / Weight / Age
Maturity: Lm 325.0  range ? - ? cm
Max length : 367 cm TL male/unsexed; (Ref. 247); 326.0 cm TL (female)
Snout conical and bulbous, tip rounded. Eyes large and ovoid, nictitating membrane absent. Body color uniform chocolate brown, all fins except pectorals with thin dark edging along posterior margin.
Eastern Atlantic: Madeira and southern Brazil. Eastern Central Pacific: off Hawaii. May eventually be recorded from the Western Central Pacific (Ref. 13568). Questionably occurring in Seychelles.
A deepwater shark inhabiting the continental and insular slopes (Ref. 50449, 58302). Pelagic (Ref. 58302). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 50449). Feeding habits unknown.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449). 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. 96402)
CITES (Ref. 94142)
Threat to humans
Fisheries: of potential interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.8125 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00412 - 0.02920), b=3.03 (2.81 - 3.25), based on LWR estimates for this (Sub)Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.3 ±0.7 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (Fec assumed to be <10).
Vulnerability (Ref. 59153
): Very high vulnerability (86 of 100) .