Document Detail
The influence of fish-exuded chemical signals on the carbon budget of Daphnia.
Abstract/OtherAbstract :
Respiration and carbon assimilation rates were measured in juvenile instars of Daphnia magna cultivated either in fish-treated or in control medium without fish exudates. Respiration and carbon assimilation rates increase proportionally to Daphnia body size. This relationship did not differ between fish-influenced and control daphnids throughout juvenile development. The results imply that observed Life-history shifts in Daphnia exposed to fish exudates are facultative changes and not the result of changes in the carbon budget induced by other predator-induced defense mechanisms or experimental setups.
Authors :
Stibor, Herwig, Macháček, Jiři
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Source :
Limnology and Oceanography, v.43, 997-1000 (1998)
Copyright Information :
Jahrbuch 1999, Copyright MPG 1999
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Languages :  en    
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