"Determining the Resistance of Marine
Animals to Environmental Chemicals"
Dr. Mark Hahn, WHOI, Biology Department
Dr. Hahn’s major research interests include receptor-mediated
mechanisms of toxicity, and means of adaptation and
acquired resistance to exposure to persistent organic
pollutants. This presentation centered on looking at
toxins in the marine environment, particularly dioxins,
PCBs, POPs: the mechanisms of toxicity, what makes animals
resistant, genetic markers for resistance.
Click here for links to web-based
resources on this topic.
"Marine Magnetotactic Bacteria"
Dr. Katrina Edwards, WHOI, Marine Chemistry and Geochemistry
Department
Dr. Edwards’ research interests include the role
of microorganisms in mediating the rates and mechanisms
of rock, mineral, and organic matter transformations,
and in particular the effects of bacterial films on
rocks. This talk was about the discovery of bacteria
responsive to the earth’s magnetic field, their
abundance and behavior, their ecological niches and
importance. Included was a demonstration of how to isolate
magnetotactic bacteria from a local marsh and stimulate
them to move directionally in response to an external
magnetic field.
Click here for links to web-based
resources on this topic.
"Technology for Marine Exploration: ROVs
and AUVs"
Mr. Martin Bowen, WHOI, Applied Ocean Physics and Engineering
Department
As a Sr. Research Associate in the Deep Submergence
Laboratory, Mr. Bowen has been a long-time pilot of
the remotely-operated vehicle Jason, and was present
when the Titanic was discovered and explored. This presentation
was about the history of the development of technology
for deep sea exploration, including the ROVs Jason and
Medea, the versatility of this type of equipment for
undersea work, and the engineering problems and solutions
on the way to the current and next-generation ROVs and
AUVs (remotely-operated vehicles and autonomous underwater
vehicles).
Click here for links to web-based
resources on this topic.
"A New Look at an Old Oil Spill"
Dr. Christopher Reddy, WHOI, Marine Chemistry and Geochemistry
Department
Dr. Reddy’s research is concerned with understanding
the source, transport, and fate of organic contaminants
in the marine environment, using novel analytical techniques.
This talk profiled original, current, and ongoing research
into a devastating oil spill in a nearby marsh environment,
relaying over 25 years of tracking of the hydrocarbon
pollution in the marsh, the depth of penetration and
the amount of retention and change of the hydrocarbons.
Dr.Reddy emphasized that the oil hasn’t gone away
in 25 years, that it still can be found in the marsh,
and that the effects on the marine community are ongoing.
Click here for links to web-based
resources on this topic.
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