Experimentally increased fish stock in the pond type lake Warniak. 8, Approximate assessment of the utilization by fish of the biomass and production of zooplankton

Hillbricht-Ilkowska, Anna; Prejs, Andrzej; Węgleńska, Teresa

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Experimentally increased fish stock in the pond type lake Warniak. 8, Approximate assessment of the utilization by fish of the biomass and production of zooplankton Hillbricht-Ilkowska, AnnaPrejs, AndrzejWęgleńska, Teresa

Object structure

Experimentally increased fish stock in the pond type lake Warniak. 8, Approximate assessment of the utilization by fish of the biomass and production of zooplankton

Approximate assessment of the utilization by fish of the biomass and production of zooplankton ; Eksperymentalne zwiększenie obsady ryb w stawowym jeziorze Warniak. 8, Przybliżona ocena wykorzystania przez ryby biomasy i produkcji zooplanktonu

Hillbricht-Ilkowska, Anna ; Prejs, Andrzej ; Węgleńska, Teresa

Polish Academy of Sciences, Institute of Ecology

Państwowe Wydawnictwa Naukowe

Warszawa

1973

Strony 553-562 ; 24 cm ; Bibliografia na stronie 561 ; Streszczenie w języku polskim

Czasopismo/Artykuł

Ryby słodkowodne -- ekologia ; Hodowla ryb ; zooplankton słodkowodny ; Pisces

The utilization by older age-groups of fish (tench, carp, crucian carp and bream) of the biomass and production of zooplankton in the years 1967-1969, was assessed. The increase of the predation rate of fish and the increase of the consumed biomass were observed in big crustacean species (Daphnia cucullata, Eudiaptomus graciloides and Diaphanosoma brachyurum), the biomass and production of which decreased in successive years.

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10. Spodniewska, I., Hillbricht-Ilkowska, A. 1973 - Experimentally increased fish stock in the pond type lake Warniak. VI. Biomass and production of phytoplankton - Ekol. Pol. 21: 519-532.
11. Zawisza, J., Ciepielewski, W. 1973 - Experimentally increased fish stock in the pond type lake Warniak. II. Changes of the autochthonous ichtyofauna due to the introduction of carp (Cyprinus carpio L.) and bream (Abramis brama (L.)) - Ekol. Pol. 21: 423-444.