Actinopterygii (ray-finned fishes) > Osmeriformes
(Smelts) > Alepocephalidae
Etymology: Rinoctes: Derived from Greek, rhinos = nose .
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 2000 - 4156 m (Ref. 4460), usually 3650 - ? m. Deep-water; 55°N - 18°N, 93°W - 12°W (Ref. 57327)
Eastern Atlantic: south-west of Ireland, Azores Island, scattered records off Morocco and off Mauritania. Western Atlantic: Gulf of Mexico (Ref. 4736). Probably occurring in the Western Central Pacific (Ref. 38717). Reported from the Indian Ocean (Ref. 43180).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.0 cm SL male/unsexed; (Ref. 4460)
Abyssal, mostly found below 3,650 m; locally frequent, somewhat gregarious. Feeds on engybenthic crustaceans, worms and sponges.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Markle, D.F. and J.-C. Quéro, 1984. Alepocephalidae (including Bathylaconidae, Bathyprionidae). p. 228-253. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 4736)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 2.3 - 4.2, mean 2.5 (based on 553 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.31 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (35 of 100) .