Reproduction of Acipenser sturio
Document source: http://fishbase.org/Reproduction/FishReproSummary.php?ID=2066&GenusName=Acipenser&SpeciesName=sturio&fc=32&StockCode=2261
 
Main Ref. Svetovidov, A.N., 1984
Mode dioecism
Fertilization external
Mating type
Spawning frequency one clear seasonal peak per year
Batch spawner Ref.  
Reproductive guild nonguarders
open water/substratum egg scatterers
Parental Care none
Description of life cycle and mating behavior Anadromous species, with adults migrating to the middle reaches of large rivers mainly in spring and early summer. Spawning occurs between March and August, when water temperature rises above 20 °C at depths of 2-10 m over stony bottoms in areas with strong current (1.5-2.0 m/s) (Ref. 51442, 59043, 89103). Mature individuals do not feed during spawning migration (Ref. 3193). Number of spawned eggs increases with age. After spawning adults return to the sea (Ref. 51442). The development of the sticky dark grey eggs (2.6-3.0 mm diameter) takes about one week at 17°C (Ref. 26160, 35388). It is suggested that males spawn every 2 years, females every 3-4 years (Ref. 89072). Upstream spawning migrations appear to be positively correlated with water levels in rivers and distances of 1,000 kilometres or more may be covered when water levels are high (Ref. 89104). Sturgeons in general have a high capacity for hybridization and most species are able to cross-breed (Ref. 89103, 89117). This species has been reported to cross-breed (albeit rarely) with the Danube sturgeon (Acipenser gueldenstaedti) (Ref. 89105).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Luna, Susan M. on 03.19.91
Modified by Franke, Andrea on 01.25.12
Checked by Torres, Armi G. on 12.20.95
Comments & Corrections
Sign our Guest Book
Back to Search


Publish in our journal partner Acta Ichthyologica et Piscatoria the results of your primary research on fishes about growth, weight-length relationships, reproduction (maturity, fecundity, spawning), food and diet composition, introductions and range extensions for faster subsequent entry in (2016 impact factor: 0.670).

cfm script by eagbayani, 21/08/01 ,  php script by rolavides, 11/02/08 ,  last modified by sortiz, 09/06/17