Makeyeva and Mokamed, 1982


Citation

Makeyeva, A.P. and Zaki Mokhamed, M.I. (1982) Reproduction and development of Pseudorasbora parva (Schlegel) in Central Asia water bodies. Voprosy ikhtiologii. Moscow., pp. 80-92

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Pseudorasbora parva Egg Oocyte diameter 1.2-1.4 x 0.8-1.0 [Just spawned eggs] 1.3 mm
Pseudorasbora parva Egg Egg size after water-hardening 1.30-1.65 x 1.15-1.30 [After swelling] 1.48 mm
Pseudorasbora parva Egg Egg adhesiveness highly adhesive due to the presence of a well expressed secondary membrane, the chorion, and they adhere strongly to the substrate Adhesive
Pseudorasbora parva Egg Incubation time 4 [24-28°C], 5 [23-26°C] 26.0 days
Pseudorasbora parva Egg Temperature for incubation 23-28 25.5 °C
Pseudorasbora parva Egg Degree-days for incubation 95-130 [4 days at 24-28°C; 5 days at 23-26°C] 112.5 °C * day
Pseudorasbora parva Larvae Initial larval size 4.5-5 4.75 mm
Pseudorasbora parva Larvae Larvae behaviour After hatching the prolarvae swim actively in jerks Demersal
Pseudorasbora parva Larvae Reaction to light Their reaction to light is positive Photopositive
Pseudorasbora parva Larvae Temperature during larval development 23-28 25.5 °C
Pseudorasbora parva Larvae Full yolk-sac resorption Changeover of larvae to exogenous feeding only. Under aquarium conditions the larvae were around 7.6 mm long at an age of 8 days. The yolk sac was fully resorbed and the larvae fed on exogenous food only. 7.6 °C * day
Pseudorasbora parva Larvae Onset of exogeneous feeding Mixed feeding of the larvae. The filling of the swim bladder with air occurs during the first days after hatching. The length of the larvae at an age of 5-5.5 days is 6.3-6.5 mm. During these days the yolk is considerably resorbed. […] The larvae swim actively and begin to feed gradually. 5.25 °C * day
Pseudorasbora parva Female Length at sexual maturity The length of sexually mature females varied between 3.5-6 cm, they were considerably smaller in the Amur 4.75 cm
Pseudorasbora parva Female Weight at sexual maturity 1.0-4.5 g 2.75 kg
Pseudorasbora parva Female Absolute fecundity Its fecundity is on average 5,000 eggs. The fecundity determined by us varied betwenn 470 and 990 eggs. 5.0 thousand eggs
Pseudorasbora parva Female Maximum GSI value Up to 30% [June, prior to spawning] 30.0 percent
Pseudorasbora parva Male Male sexual dimorphism The sharp tubercules on the head of males during spawning time serve as protection Absent
Pseudorasbora parva Spawning conditions Spawning season May-June ['May', 'June']
Pseudorasbora parva Spawning conditions Spawning period duration 8 8.0 weeks
Pseudorasbora parva Spawning conditions Spawning temperature 19.5-20°C 19.75 °C
Pseudorasbora parva Spawning conditions Spawning water type Warm and calm waters, inshore areas of ponds Stagnant water
Pseudorasbora parva Spawning conditions Spawning depth Shallow No data
Pseudorasbora parva Spawning conditions Spawning substrate Stones, sometimes on sticks, in the empty shells of molluscs and even on objects which have accidently fallen into the water Lithophils
Pseudorasbora parva Spawning conditions Spawning site preparation The fish choose a suitable place for spawning and clean it of ooze and overgrouwth No category
Pseudorasbora parva Spawning conditions Nycthemeral period of oviposition Spawning only occrured in the morning, about 8.00 Day
Pseudorasbora parva Spawning conditions Spawning release Intermittent spawning, the number of batches which the female lays during the spawning season may be 60 or more Multiple
Pseudorasbora parva Spawning conditions Spawning release The number of eggs per bacth varies between 57 and 560 Multiple
Pseudorasbora parva Spawning conditions Parental care The male protect the batch, driving away other small fish [Also, males clean the eggs and evidently remove dead ones] Male parental care