The effect of food on the respiration rates of Daphnia magna using a flow-through system
DOI:
https://doi.org/10.3989/scimar.2003.67n3361Keywords:
zooplankton, metabolism, feedingAbstract
Respiration rates and gut fluorescence of the cladoceran Daphnia magna were studied using a flow-through system. This open system has the advantage of introducing food or producing a starvation effect during the course of the experiment. Severe variations in respiratory rates were observed in relation to the presence or absence of food, indicating short-term variability. Organisms kept starved or at low food for a long period (15-20 h) responded to a sudden increase in food by increasing their respiration rates three- to four-fold in parallel with their gut content. A significant relationship between gut fluorescence and respiration rates was observed, suggesting that feeding and the related swimming activity were responsible for the observed metabolic variability.
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Published
2003-09-30
How to Cite
1.
Schmoker C, Hernández-León S. The effect of food on the respiration rates of Daphnia magna using a flow-through system. scimar [Internet]. 2003Sep.30 [cited 2023Sep.29];67(3):361-5. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/486
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