Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθικό(ς); εύρος βάθους 100 - 200 m (Ref. 59043). Temperate; 46°N - 45°N, 10°E - 11°E
Europe: Lake Garda, Italy. Introduced in several lakes of northern Italy, Germany and New Zealand but all introductions failed.
Μέγεθος / Βάρος / Age
Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 59043); μεγ. αναφερόμενη ηλικία: 5 έτη (Ref. 59043)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Distinguished from congeners in Italy by its unique almost absence of dark spots on head. Differs further by the combination of the following characters: adults lacking parr-marks; and outside spawning season silvery, with few, very small dark spots on body; during spawning season, some males show a dark marbled color pattern (Ref. 59043).
Lives in lakes at 100-200 m depth. Feeds predominantly on zooplankton. Also preys on other benthic invertebrates during summer. Spawns close to underwater springs at 50-300 m depths (Ref. 59043). Threatened due to habitat destruction, pollution and overfishing (Ref. 26100) and possibly due to the introduction of exotic Coregonus and Salmonidae (Ref. 59043).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
αλιεία: Εμπορικό(ά); Υδατοκαλλιέργειες: Εμπορικό(ά)
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00488 - 0.02245), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.5 ±0.37 se; based on food items.
Ελαστικότητα (Ref.
120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).