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Osmeriformes (Freshwater smelts) >
Osmeridae (Smelts)
Etymology: Hypomesus: Greek, hypo = under + Greek,mesos = a half (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce; saumâtre pélagique; anadrome (Ref. 51243). Temperate; 73°N - 38°N (Ref. 26213)
North America: Sacramento-San Joaquin Delta region in central California, USA.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm ?, range 6 - ? cm
Max length : 12.0 cm TL mâle / non sexé; (Ref. 5723); common length : 6.3 cm TL mâle / non sexé; (Ref. 12193); âge max. reporté: 1.00 années (Ref. 12193)
Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 9-11; Épines anales 0; Rayons mous anaux: 16 - 20; Vertèbres: 52 - 57. Vomer without posterior process; periphery of glossohyal bone with single row of conical teeth, central part toothless; pyloric caeca 4(2-5); base of adipose fin more than 20% of head length; eye large; adipose eyelid poorly developed.
Adults occur in open brackish and freshwater of large channels. Diet consists of zooplankton (Ref. 33312).
Eggs are demersal (Ref. 33312).
Saruwatari, T., J.A. López and T.W. Pietsch, 1997. A revision of the ormerid genus Hypomesus Gill (Teleostei: Salmoniformes), with a description of a new species from the southern Kuril Islands. Species Diversity 2:59-82. (Ref. 33312)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00182 - 0.00758), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±0.1 se; based on diet studies.
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (tm=1; tmax=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).