Teleostei (teleosts) >
Aulopiformes (Grinners) >
Scopelarchidae (Pearleyes)
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
Ecology
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)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 8; Anal 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
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 1.6 - 22.6, mean 1.7 °C (based on 7 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00144 - 0.00836), b=3.15 (2.94 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).