General Research Theme

The general question we study is the adaptation potential of marine organisms to environmental change. The specific area of research being addressed in my laboratory group is the environmental physiology of development of marine invertebrates, especially the early stages of development (“larvae”). Understanding growth and development of any animal in its natural environment – be it terrestrial or aquatic – is a complex process. For species of marine animals, the problem of understanding the biology of larval stages is further complicated by the vast scales and changing environments of the world’s oceans over which life-history strategies are known to vary.

Examples of our studies of larval development in “extreme environments”

(Antarctica; Deep-sea hydrothermal vents)


 

Cover of the journal Science featuring blue frozen ice crystals

Paper on Antarctic larvae

Metabolic efficiency in an extreme-cold environment: “High macromolecular synthesis with low metabolic cost in Antarctic sea urchin embryo”

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Cover of the journal Nature featuring the headline "Bringing liquid crystals into line"

Paper on hydrothermal vent larvae

Physiology and dispersal potential of deep-sea vent larvae: “Larval dispersal potential of the tubeworm Riftia pachyptila at deep-sea hydrothermal vents.”

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Contact

Professor Donal T. Manahan

Department of Biological Sciences
USC Dornsife College of Letters, Arts and Sciences
University of Southern California
Los Angeles, CA 90089-0371