Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Pentanchidae
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 1014 - 1800 m (Ref. 31787), usually - m (Ref. ). Deep-water; 0°C - ; 58°N - 57°N
Length at first maturity / Size / Weight / Age
Maturity: Lm 56.9  range ? - ? cm
Morphology | Morphometrics
Body slender and cylindrical. Dermal denticles from dorsolateral side of body small and erect.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Nakaya, K. and M. Stehmann, 1998. A new species of deep-water catshark, Apristurus aphyodes n. sp., from the Eastern North Atlantic (Chondrichthyes: Carchariniformes: Scyliorhinidae). Arch. Fish. Mar. Res. 46(1):77-90. (Ref. 31787)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00154 - 0.00678), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.9 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Fec assumed to be <10).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (48 of 100) .