Actinopterygii (ray-finned fishes) > Osmeriformes
(Smelts) > Platytroctidae
Etymology: Platytroctes: Greek, platys = flat + Greek, troktes, -ou = that eats (Ref. 45335). More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 385 - 5393 m (Ref. 40846). Deep-water; 67°N - 21°S, 57°W - 119°E
Eastern Atlantic: scattered records from Denmark Strait and Bay of Biscay (Ref. 6682) to Gabon (Ref. 4461). Indian, Pacific and western Atlantic: in tropical waters.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.0 cm SL male/unsexed; (Ref. 4461)
Morphology | Morphometrics
soft rays: 17. Body highly compressed and flabby; body leaf-like in appearance; no nodular luminous organ on body, upper and lower edges of caudal peduncle fringed by black presumably luminous tissue; pectoral fin tiny; body dark brown; opercular region, shoulder luminous organ, and anus black (Ref. 13608).
Reported to reach the depth of 5,393 m (R.E. Pohl, pers. comm., 28/11/01).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Quéro, J.-C., T. Matsui, R.H. Rosenblatt and Y.I. Sazonov, 1984. Searsiidae. p. 256-267. 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. 6682)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 1.9 - 4.9, mean 3 (based on 5566 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .