𝔖 Bobbio Scriptorium
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Population dynamics and food of bleak (Alburnus alburnusL.) in the littoral zone of Lake Balaton, Hungary

✍ Scribed by P. Bíró; I.B. Muskó

Publisher
Springer
Year
1995
Tongue
English
Weight
670 KB
Volume
310
Category
Article
ISSN
1573-5141

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✦ Synopsis

Intra-and interspecific effects together with changing environmental conditions regulate the dynamics of the fragile bleak populations in Lake Balaton. Size-and age-structures, length-weight relationships and mortality were studied on 1493 individuals and growth history were determined using scales from 703 specimens. The population growth rate was slow and the basic population parameters showed area variations along the longitudinal axis of the lake. Gut contents were analyzed in 224 individuals. The bleak stocks are trophically strongly related to the littoral zooplankton and benthos; and they play a significant energy-mediating role in the food-webs between the periphytic communities and fish assemblages in the littoral zone of Lake Balaton.

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