REAL

Population dynamics and food of bleak (Alburnus alburnus L.) in the littoral zone of Lake Balaton, Hungary

Bíró, Péter and B. Muskó, Ilona (1995) Population dynamics and food of bleak (Alburnus alburnus L.) in the littoral zone of Lake Balaton, Hungary. HYDROBIOLOGIA, 310 (2). pp. 139-149. ISSN 0018-8158 (print), 1573-5117 (online)

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Abstract

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.

Item Type: Article
Subjects: Q Science / természettudomány > QE Geology / földtudományok > QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia
Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia
Q Science / természettudomány > QL Zoology / állattan
Depositing User: Erika Bilicsi
Date Deposited: 06 Dec 2012 12:40
Last Modified: 06 Dec 2012 12:40
URI: http://real.mtak.hu/id/eprint/3489

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