Elasmobranchii (sharks and rays) > Squaliformes
(Sleeper and dogfish sharks) > Etmopteridae
Etymology: Etmopterus: Greek, ethmos, -ou = sieve or ethmoides bone + Greek, pteron = wing, fin (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; depth range 878 - 1427 m (Ref. 247). Deep-water
Southwest Pacific: New Zealand. Occurrence in the Western Central Pacific is uncertain (Ref. 31367).
Size / Weight / Age
Maturity: Lm ?  range ? - 75 cm
Max length : 75.0 cm TL male/unsexed; (Ref. 247)
Found on the upper insular slopes, on or near the bottom (Ref. 247). Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing with embrace (Ref. 205). Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
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. 123251)
CITES (Ref. 123416)
Threat to humans
Estimates based on models
Preferred temperature (Ref. 115969
): 3.1 - 5.7, mean 4.6 °C (based on 109 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00178 - 0.00811), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.5 se; based on diet studies.
Generation time: 28.9 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153
): High to very high vulnerability (69 of 100) .