Turkish Journal of Fisheries and Aquatic Sciences
2012, Vol 12, Num, 4 (Pages: 771-776)
First Evidence of Pheromonal Stimulation of Maturation in Eurasian Perch, Perca fluviatilis L., Females
Daniel Żarski 1
1 University of Warmia and Mazury in Olsztyn, Department of Lake and River Fisheries, ul. Oczapowskiego 5, PL 10-719 Olsztyn, Poland
DOI :
10.4194/1303-2712-v12_4_05
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The effect of pheromonal stimulation on the progress of maturation in wild Eurasian perch, Perca fluviatilis, females
was determined. The females were kept in two separate tanks in a flow through system (12°C). (experimental group) males
were placed together with females into one of the tanks. A second tank was without males. The maturation stage of females
was determined in vivo every 10 days up to day 30. The results obtained indicated that pheromonal stimulation induced
uneven maturation and significant diversification of maturation stages (from I to V) in females that were kept with males. In
females kept without males 90% of fish were still in stage I. The results suggest that spawners of both sexes should be kept
together if it is necessary to stimulate reproduction, whereas they should be kept separately in order to synchronize or delay
the spawning.
Keywords :
Artificial spawning, synchronization of ovulation, oocyte maturation, percids culture, aquaculture