Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ; ນ້ຳກ່ອຍ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; pH range: 7.2 - 8.0; dH range: 10 - 25. Temperate; 8°C - 22°C (Ref. 12468); 50°N - 43°N, 15°E - 40°E
Europe: Northern Black Sea basin from Danube (up to Vienna) to Kuban drainages; Caspian basin (Volga and Ural drainages).
Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm 25.0, range 20 - 30 cm
Max length : 40.0 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 59043); ອາຍຸສູງສຸດທີ່ເຄຍລາຍງານມາ: 12 ປີ (Ref. 59043)
Short description
ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
Distinguished uniquely from congeners in Europe by the absence of canine teeth. Differs further by the combination of the following characters: second dorsal fin with 19-21½ branched rays; 70-83 scales on lateral line; and cheek scaled (Ref. 59043).
Inhabits large, turbid rivers and lakes, and brackish coastal lakes and estuaries. Most active at dusk and dawn. Feeds on small fish and invertebrates. Larvae and juveniles are pelagic and feed on zooplankton. Attains first sexual maturity at 3-4 years of age and 20-30 cm SL. Spawns in April-May. May undertake short spawning migrations (Ref. 59043).
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Individual females spawn 2-3 portions of eggs. May undertake short spawning migrations. Males are territorial. They excavate shallow depressions in sand or gravel, or exposed plant roots where eggs are deposited, usually along shallow shores at 1-2 m depth (Ref. 59043).
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: Version 2024-2)
Threat to humans
Harmless
Human uses
ການປະມົງ: ເປັນສີນຄ້າ; ຊະນິດປາທີ່ຖືກນຳໃຊ້ເຂົ້າໃນການຫາເພື່ອເປັນເກມກິລາ: ແມ່ນ
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00327 - 0.02023), b=3.09 (2.88 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 4.1 ±0.66 se; based on food items.
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).