Dynamics of the Pikeperch, Stizostedion lucioperca (L.), in Lake Balaton

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The pikeperch populations inhabiting three distinct water areas of Lake Balaton differ in regard of growth. Due to stock depletion, pikeperch in the NE‐basin of the lake grew considerably faster than ten years ago. The annual rate of growth in length (von Bertalanffy's K) varied between 0.09 and 0.19. The specific rate of growth in length (GL) ranged from 0.16 to 0.23 and that of growth in weight (GW) from 0.52 to 0.69. Length and age‐structures of the stocks differed significantly between different areas and years, but the overwhelming majority of the stocks consisted of age‐groups IV–V (98.2–99.3%). From NE to SW, the rates of survival were 34, 29 and 70%, respectively. These differences, and the differences in growth resulted in changes in the productive capacity of the stocks. The ratios of production and biomass were 59% (NE‐basin), 63% (central basin) and 39% (SW‐basin), respectively. The magnitudes of production varied inversely. The 50% retention lengths of the seine nets used in Lake Balaton were 35.0, 35.7 and 42.5 cm with weights of 572, 655 and 1019 g, respectively.

Original languageEnglish
Pages (from-to)471-490
Number of pages20
JournalInternational Review of Hydrobiology
Issue number4
Publication statusPublished - 1985


  • biomass
  • growth
  • mortality
  • production
  • Stizostedion lucioperca

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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