The effect of water temperature on the number of moults and growth of juvenile noble crayfish, Astacus astacus (Linnaeus)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F10%3A43886663" target="_blank" >RIV/60076658:12520/10:43886663 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The effect of water temperature on the number of moults and growth of juvenile noble crayfish, Astacus astacus (Linnaeus)
Original language description
The growth rate, frequency of moulting, and intermoult intervals of juvenile Astacus astacus were investigated under experimental conditions. Juveniles were reared individually for a period of 3 months in small boxes at two different temperatures: 14.31+- 0.62°C (cold water) and 20.49 +- 0.73°C (warm water). All intermoult periods of juveniles were significantly longer in cold than warm water. In total, three moults were observed in cold and five in warm water. Furthermore, a higher water temperature can affect moult increment. The specific growth rate (SGR) tended to decrease with every other stage, from 5.1 and 10.5% day-10 for cold and warm water, respectively, to reach values of 1.5 and 1.7% day-1, respectively, after 3 months. SGR values showed negative correlations with number of moults, age and weight. The impact of different temperatures on growth parameters of crayfish is discussed.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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