Why should society worry about changes in the oceans
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Friday, May 18, 2018
New Technology For Ocean
THE NEW TECHNOLOGY FOR OCEAN UPDATES see it
Why should society worry about changes in the oceansthat might be associated with either natural
variations or some of the activities that
were pursuing, especially fossil fuel emissions? Well,
we gain all kinds of benefits from the ocean. Climate stability is probably the most
important. One of the things that
were doing in my lab is to try and understand how animals
respond not just to changing ocean acidity
but also to simultaneous changes in oxygen and temperature on the timescales that up welling may
change. We know now from recent
observations due to some of the technology we developed here at
MBARI that conditions in the coastal ocean
change far faster and far more than we see in the open ocean. And
considering that thats where most of the biota are that we depend
upon all of the fisheries live in the
coastal ocean we need to understand how those animals will respond to change.
A couple things are going on in my lab to try and do
that. Weve create welling
simulator so that we can simulate up welling conditions changing temperature, oxygen, and the acidity of the
water and then expose animals to those conditions to see how they perform either in terms of their physiology or in
terms of their interactions with other
species. The second thing
were
doing in our lab, as a collaboration with some others at MBARI here, are developing free ocean CO2 enrichment systems,
termed FOCE, and in shallow water we;re installing a system this year that will allow us to
have me socosms”small chamber s on the
sea bed”that we can change the acidity in over long timescales so we can have
an experiment for months long to try and
evaluate how will whole communities or assemblag es of species react to changes in ocean acidity.
For example, sand dabs, something you may have eaten
at a local restaurant, live along the
coast, and we are focusing on sand dabs to see how they will tolerate long-term
changes in ocean acidity while
there still living in a relatively natural environment.
FOCE technology developed here at MBARI
has been used in several settings around
the world from the Antarctic, to coral
reefs in Australia, helping us to understand how changes in ocean a cidity may affect real communities, assemblages of
species that are living in the ocean, but have a small chamber around them that is a little bit richer in
acidity, to see how that acidity affects
their performance and their interactions among species
. We know that all organisms have some capacity for adaptation, the
real question is not whether they can
adapt, it;s whether they'll be able to adapt fast enough and far
enough to kee p up with the pace of
environmental change that we are driving through our CO2 emissions. And thats one of the big challenges for the
science community in the next hundred years. Whats going to happen in terms of how this will all play out in terms of adaptation
in the future ecosystems that we
have?
Will they retain their ability to
function in the way they do now and provide all of
the benefits we depend upon?
THANKYOU
technology
Why should society worry about changes in the oceans
THANKYOU
technology
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