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| Identifier |
000397312 |
| Title |
Μελέτη της δυναμικής του πληθυσμού του τροχοφόρου Brachionus plicatilis με χρήση της θεωρίας δυναμικού ενεργειακού ισοζυγίου |
| Alternative Title |
Study of the population dynamics of the rotifer Brachionus plicatilis using the dymaic energy budger theory |
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Author
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Δράκου, Σοφία Χ.
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Thesis advisor
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Λύκα, Κωνσταντίνα
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Reviewer
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Κεντούρη, Μαρουδιώ
Divanach, Pascal
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| Abstract |
To study the population dynamics of the rotifer Brachionus plicatilis we applied the Dynamic Energy Budget theory which is based on the description of how the energy absorbed from food distributed among the various metabolic processes. Firstly we developed the individual energy budget model which represents the dynamics of the individual over time, for which were evaluated the parameters and quantified the variables related to physiological processes of individuals. The individual model studied the development of the individual, the duration of the phases of its life cycle and finally the time between successive deposits, for different values of the temperatures and the availability of food. The results of the individual model are in agreement with the literature data, of course taking into account the assumptions of the model. Then the individual model incorporated into an individual-based population model to investigate population dynamics and interactions of individuals with environmental variables, especially the food density. The verification of the model was based on data obtained from experiments performed in the Live Food laboratory of the Institute of Marine Biology, Biotechnology and Aquaculture at the Hellenic Centre for Marine Research. Two different feeding experiments were performed (phytoplankton "paste" and yeast) with three different density manipulations for each experiment. The simulations showed the same fluctuation pattern of the population with the experimental data for the operations audited, which are in agreement with the literature data. Generally the individual model illustrates sufficiently the procedures of the individuals of the species Brachionus plicatilis during its lifetime and furthermore the population model seems to perform quite well in comparison to the experimental data.
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| Language |
Greek |
| Issue date |
2015-11-20 |
| Collection
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School/Department--School of Sciences and Engineering--Department of Biology--Post-graduate theses
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Type of Work--Post-graduate theses
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| Views |
280 |
Μελέτη της δυναμικής του πληθυσμού του τροχοφόρου Brachionus plicatilis με χρήση της θεωρίας δυναμικού ενεργειακού ισοζυγίου
