Actinopteri (ray-finned fishes) > Aulopiformes
(Grinners) > Scopelarchidae
Etymology: Scopelarchus: Greek, skopelos = a lantern fish + Greek, archos = anus (Ref. 45335); stephensi: Named for John S. Stephen Jr. in recognition of his numerous contributions to the biology of fishes and to the eduction of scientists (Ref. 40783).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 0 - 1000 m (Ref. 58302). Deep-water; 35°N - 25°N
Northwest Pacific: 27°56.9'-28°07.9'N, 177°53.4'-177°39.2'W (type locality).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 40783)
Morphology | Morphometrics
soft rays: 20 - 22;
Vertebrae: 42 - 43. Pigment on pectoral fin limited to a narrow patch of melanophores between 2nd and 6th or 7th pectoral rays on medial third of length of fin; appressed pectoral reaching to pelvic insertion but not to anus; caudal fin depth 7.9-9.2 SL (Ref. 40783).
Meso- and bathypelagic (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Johnson, R.K., 1974. Five new species and a new genus of alepisauroid fishes of the Scopelarchidae (Pisces: Myctophiformes). Copeia 1974(2):449-457. (Ref. 40783)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 1.6 - 22.6, mean 1.7 °C (based on 7 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [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
): 3.8 ±0.7 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .