Condition and feeding behaviour of subadult burbot (Lota lota) in riverine and lacustrine environments

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F18%3A00494981" target="_blank" >RIV/60077344:_____/18:00494981 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.2478/s11756-018-0008-7" target="_blank" >http://dx.doi.org/10.2478/s11756-018-0008-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2478/s11756-018-0008-7" target="_blank" >10.2478/s11756-018-0008-7</a>

Result language
angličtina
Original language name
Condition and feeding behaviour of subadult burbot (Lota lota) in riverine and lacustrine environments
Original language description
The condition and feeding behaviour of burbot, a widespread potamodromous species in riverine and lacustrine environments, were compared in order to evaluate the importance of both in three artificial systems. Subadult burbot were sampled in three temperate reservoirs in spring, and one of them also in summer and autumn. Standardised abundance and sizes of burbot were comparable between the reservoirs, but the conditions were significantly different. The Clark's condition coefficient and index of fullness were independent of burbot size and individuals. Feeding behaviour in terms of abundance and composition of consumed food was environment-dependent. The most common prey category was aquatic insect larvae, dominating in the riverine environment. Permanent water invertebrates, microcrustaceans, beetles and crayfish were less common food and eaten more often in the lacustrine environment. Prey-fish were usually the most common species of suitable size. The food analyses demonstrated opportunistic feeding behaviour with selection of prey associated with benthic habitat and suitable size. Burbot is therefore flexible not only in environments utilisation, but also feeding strategy.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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