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Physiological effects of hydrocarbons on phytoplankton

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National Archive of PhD Theses  | ΕΚΤ NA.Ph.D.   

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Physiological effects of hydrocarbons on phytoplankton
Karydis, Michael
Καρύδης, Μιχαήλ
PhD Thesis
1978
The effect of hydrocarbons on phytoplankton has been studied using laboratory cultures of marine diatoms and flagellates. Low oil concentrations ,stimulate photosynthetic activities while high oil concentration« cause inhibition. The concentrations required for both stimulation and toxicity depend on the individual species. The toxic effects become more obvious after a few days due perhaps to the slow penetration of the oils. The toxicity levels are also affected by the presence of organic material in the medium.. Studies on the ultrastructure hasrshown an effect of the paraffin fraction on the cell wall although the external morphology was not affected. Assimilation of hydrocarbons by the diatoms has also been proved by using gas chromatography. The competition between two species in the presence and absence of oil has been studied to obtain an idea of the ecological importance of this form of pollution.
Φυσικές Επιστήμες ➨ Βιολογία ➨ Θαλάσσια βιολογία και Βιολογία γλυκών υδάτων
Υδρογονάνθρακες
Biological Sciences
Marine and Freshwater Biology
Hydrocarbons
Phytoplankton
Βιολογία
Θαλάσσια βιολογία και Βιολογία γλυκών υδάτων
Natural Sciences
Φυσικές Επιστήμες
Φυτοπλαγκτόν
English
Institutes outside Greece
Ιδρύματα Εξωτερικού
University College of North Wales. Marine Science Laboratories
National Documentation Centre (EKT)
National Archive of PhD Theses
Συλλογή ΕΑΔΔ



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