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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
Ecologia
marino; acqua dolce; salmastro; anadromo (Ref. 51243). Temperate
Asia: Japan to the Korean Peninsula (not confirmed by Ref. 33312). USA report adverse ecological impact after introduction.
Length at first maturity / Size / Peso / Age
Maturity: Lm 6.5, range 6 - 7 cm
Max length : 17.0 cm TL maschio/sesso non determinato; (Ref. 5723)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 8 - 10; Spine anali: 0; Raggi anali molli: 12 - 19; Vertebre: 53 - 57. Vomer T-shaped with well-developed posterior process; periphery of glossohyal bone with single row of conical teeth, central part toothless; gill rakers 10(7-11) + 23(20-25) = 32(29-36); pyloric caeca 4(1-6); base of adipose fin less then 20% of head length; eye large; adipose eyelid absent.
Found in open water of impoundments and their tributaries, in fresh and brackish water. Primarily a brackish water species (Ref.33312). Anadromous (Ref. 37812).
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)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Potential pest (Ref. 13364)
Human uses
Pesca: commerciale; Acquacoltura: commerciale
Strumenti
Special reports
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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=0.00389 (0.00223 - 0.00678), b=3.14 (2.98 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on diet studies.
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (tm=1; Fec = 1,033; post-spawning mortality almost 100%).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).