Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
; acqua dolce; salmastro pelagico; anadromo (Ref. 51243); distribuzione batimetrica 20 - ? m (Ref. 9696). Temperate; 10°C - 20°C (Ref. 2059); 63°N - 36°N, 8°E - 73°E
Eurasia: Black Sea, Caspian Sea and Aral Sea basins; Baltic basin from Vistula to Neva drainages, southern Sweden and Finland, Lakes Ladoga and Onega. Occasionally on Baltic coast west of Vistula and on Finnish coast north of 61°N (Ref. 59043).
Length at first maturity / Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 60.0 cm TL maschio/sesso non determinato; (Ref. 556); common length : 25.0 cm TL maschio/sesso non determinato; (Ref. 556); peso massimo pubblicato: 2.0 kg (Ref. 556); Età massima riportata: 11 anni (Ref. 27368)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Mouth oblique. Low wavy lateral line. Belly with a sharp edge (Ref. 35388).
Body shape (shape guide): fusiform / normal.
Adults shoal in lower reaches of large rivers and in the eastern Baltic, the Caspian Sea and the Aral Sea. They spawn in spring in midstream (Ref. 9696) and return to estuaries to forage immediately after spawning (Ref. 59043). Juveniles may migrate to estuaries during first summer (Ref. 59043). Feed on zooplankton, terrestrial invertebrates and small fish (Ref. 59043).
Open water egg scatterers.
Muus, B.J. and P. Dahlström, 1968. Süßwasserfische. BLV Verlagsgesellschaft, München. 224 p. (Ref. 556)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale
Strumenti
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Estimates based on models
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00358 - 0.01465), b=3.14 (2.97 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.6 ±0.53 se; based on food items.
Generation time: 10.0 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.20; tmax=11).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
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Nutrients (Ref.
124155): Calcium = 66.5 [31.2, 113.7] mg/100g; Iron = 0.558 [0.337, 0.929] mg/100g; Protein = 18.7 [17.7, 19.7] %; Omega3 = 0.8 [0.4, 1.6] g/100g; Selenium = 7.91 [3.55, 16.95] μg/100g; VitaminA = 17.8 [5.7, 58.8] μg/100g; Zinc = 0.677 [0.485, 0.950] mg/100g (wet weight);