Witkowski, 2006



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Pseudorasbora parva Spawning conditions Mating system One male may spawn with a consecutive females No category
Pseudorasbora parva Spawning conditions Parental care The male guards the eggs till hatching, and aggressively drives away others, often larger fish Male parental care
Pseudorasbora parva Spawning conditions Spawning substrate The species beloongs to the indifferent litho-phytophilous reproductive guild. The eggs are laid on plants, sand, stones, mollusc shells and other substrata Ambiguous
Pseudorasbora parva Spawning conditions Spawning site preparation Before spawning, the female carefully cleans the susbtratum for egg-laying No category
Pseudorasbora parva Spawning conditions Spawning temperature In the Amur basin the spawning starts when the temperature of 15-19°C 17.0 °C
Pseudorasbora parva Spawning conditions Spawning depth Takes place in the littoral No data
Pseudorasbora parva Female Female sexual dimorphism The female becomes clearly lighter Absent
Pseudorasbora parva Male Male sexual dimorphism The sexual dimorphism becomes pronounced during spawning. In males breeding tubercles appear on the head. The greatest accumulation of sharp tubercles is located in the anterior part of the head, on the frons, near nostrils and below and above the eye. Few tubercles are observed also on the lower lip. In that period the males darken distinctly, and their fins become black while the operculum gets violet Absent
Pseudorasbora parva Egg Egg adhesiveness Sticky Adhesive
Pseudorasbora parva Egg Incubation time The embryonic development at water temperature of 20-28°C takes 4-8 days 24.0 days
Pseudorasbora parva Egg Egg size after water-hardening Ellipsoidal (major diameter 2.0-2.5 mm), yellowish 2.25 mm
Pseudorasbora parva Female Absolute fecundity The fertility ranges from a few hundred to a few thousands eggs: Amur -388-3060, Czech Republic: 2018-5326, Danube: 610-3200, 800-4200 1724.0 thousand eggs
Pseudorasbora parva Spawning conditions Spawning season In the Amur basin the spawning is in May-August, whereas it spawns earlier: in April-June ['April', 'August', 'May', 'June']
Pseudorasbora parva Female Age at sexual maturity Spawns when one year old No data
Pseudorasbora parva Spawning conditions Spawning release During one act it lays up to several dozen eggs. Mutliple