Astrobiology: Life in the Universe

NASA Astrobiology Institute (NAI)


  1. Seminar Detail

    Geochemical Seasonality in a Unique Aquatic Environment:<br />
        Who needs oxygen, anyway?

    Geochemical Seasonality in a Unique Aquatic Environment:
    Who needs oxygen, anyway?


    Presenter: Geoff Garrison ()

    April 15, 2003 12:00 AM Pacific

    One of the pillars of astrobiology research is understanding how life can
    exist in modes other than what is typical on earth, and what kinds of
    chemical signals such unique life forms can produce. This talk will
    present the biogeochemical dynamics of a recently studied extremely
    productive closed pond on the leeward shore of Oahu, Hawaii. What makes
    this pond unique is that despite its high levels or organic productivity
    (>470 mg C m-2 d-1), the waters of the pond remain suboxic to anoxic, even
    at the very surface, during most of the year. A system with such large
    chemical disequilibria provides an easily accessible natural laboratory
    for the study of unique microbial communities. It's also a short drive
    from the best Mai Tais in Hawaii.

    Participation Instructions

    http://nai.arc.nasa.gov/seminars/instructions.cfm

The Director’s Seminar series features talks from scientists who are invited by the NAI Director to present their research results to the community. A primary goal of the seminars is to encourage interdisciplinary collaboration across NAI teams and within the astrobiology community at large.

Team Overview Seminars describe the work of the fourteen NAI teams and NAI Central. They offer an opportunity to find out more about the science, E/PO and other activities being performed by the NAI teams and the NAI Central office.

The Forum for Astrobiology Research (FAR) provides an opportunity for graduate students to present their research results and to meet as a student community for networking and mutual support.

The University of Washington seminar series is hosted by the NAI Virtual Planetary Lab (VPL) team from the UW campus in Seattle.