The condition, length and age distribution of pikeperch, Stizostedion lucioperca (L.) in Lake Peipsi |
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Authors: | Andu Kangur Peeter Kangur |
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Institution: | (1) Võrtsjärv Limnological Station, Institute of Zoology and Botany of the Estonian Academy of Sciences, EE2454 Rannu, Tartumaa, Estonia |
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Abstract: | The population of pikeperch in L. Peipsi was studied with respect to average number per haul, length distribution of fishes in experimental catches, condition factor (according to Fulton) and length-weight relationship in autumn 1993–1995.The relatively good growth rate and condition of pikeperch in the lake indicates that the waterbody is suitable for this fish. However, the length and age distribution of pikeperch in different years as well as the decreasing total number of fishes in catches demonstrate that the population of pikeperch is suppressed due to overfishing during the last years. |
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Keywords: | pikeperch Lake Peipsi average number length distribution condition factor length-weight relationship |
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