Keyword: Dissertation

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New doctoral research sheds new light on how quasars are formed

Quasars are extremely luminous galaxies and their light is produced by a supermassive black hole at their center, which is actively feeding on the cosmic gas and dust around it. Previous theories have suggested that quasars and their supermassive black holes are formed when galaxies collide, but a recent doctoral thesis at the University of Turku shows that quasars can form even in the absence of galaxy interactions.

Fish swimming exercises can improve their ability to tolerate global warming (Dissertation: MSc Luca Pettinau, 8.9.2023, biology)

A Doctoral Researcher Luca Pettinau examined whether the heart performance of fish in fish farms can be enhanced with swimming exercises. Regular swimming exercises with moderate exertion improved the heart performance of the fish, as well as their ability to tolerate higher temperatures. Increasing the strain on adult fish also improved the growth and survival of their offspring.

Current marine heat waves could increase short-term resistance of fish towards warm waters, but this capacity might be damaged by long-term temperature increase with climate change in Baltic Sea (Dissertation defense: MSc Giovanna Mottola, 30.9.2022, animal physiology)

After conducting a research on fish populations in the Baltic sea,  Doctoral Candidate MSc Giovanna Mottola found that some fish can still survive from current summer heat waves. But according to the research the general increase of temperature due to climate change all the year around can threaten this capacity.