✦ LIBER ✦

The Density and Production of Fish Populations in the Klíčava Reservoir (Czechoslovakia) and their Changes During the Period 1957-1970

✍ Scribed by Dr. Juraj Holčík; Dr. Karel Pivnička

Publisher: John Wiley and Sons
Year: 1972
Tongue: English
Weight: 652 KB
Volume: 57
Category: Article
ISSN: 1434-2944
DOI: 10.1002/iroh.19720570605

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✦ Synopsis

The results of 14 years of observations are reported concerning the species composition, ichthyomass (standing crop), total and available production, harvestable yield and balance of the fish population in the Kli6ava reservoir (67 ha of area) in central Bohemia. Two stages of the reservoir development with regard to its fish are recognized and characterized. Some phenomena concerning the course of the ichthyomass and production, and the reasons for their fluctuations are discussed.

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Abundance, growth and production of the roach (Rutilus rutilus [L.]) population in the Klíčava reservoir during the years 1964 and 1967–1972

✍ Karel Pivnička 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 719 KB

## Abstract During the years 1964 and 1967–1972 the relationship between abundance, growth and production of the roach population in the Klíčava reservoir (Central Bohemia) was studied. Significant values for correlation coefficients were found for all variables. Noticeable variations in abundance