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Caloric value of the Dreissena polymorpha (Pall.) dry body weight in some Mazurian lakes
Stanczykowska, A.; Lawacz, W. (1976). Caloric value of the Dreissena polymorpha (Pall.) dry body weight in some Mazurian lakes. Pol. Arch. Hydrobiol. 23(2): 271-275
In: Polskie Archiwum Hydrobiologii = Polish Archives of Hydrobiology. Polish Academy of Sciences. International Centre of Ecology: Dziekanów Lesny. ISSN 0032-3764, more
Peer reviewed article  
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Keywords
    Nutritive value
    Population factors > Condition factor
    Temporal variations > Periodic variations > Seasonal variations
    Dreissena polymorpha (Pallas, 1771) [WoRMS]
    Fresh water
Authors  Top 
  • Stanczykowska, A.
  • Lawacz, W.
Abstract
    The caloric value of the dry body weight of D. polymorpha was determined in 10 Mazurian lakes. It has been found that in the lakes where the density of this mollusc population was low and the individuals were large and heavy (in a good condition) the calorific values were higher than in the water bodies with higher densities of D. polymorpha and with the animals in weaker conditions. Variability of caloric values and carbon and nitrogen content in the body of individuals collected at various sampling stations in the same lake was demonstrated as well as the seasonal changes in these values within the period of time between June and October.
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