Impact of climate change on marine biodiversity : the case of plankton-feeding species
Sabrina FOSSETTE, AXA Research Fellow
Year of selection
Support by the AXA Research Fund
TYPE OF SUPPORT
WANT TO KNOW MORE ABOUT MARINE
ECOSYSTEMS? FOLLOW THE TURTLES
Marine ecosystems are facing extreme and rapid
changes. In particular, there are concerns that
jellyfi sh may be taking over the oceans due to
overfi shing. Jellyfi sh are very diffi cult to study;
however, an original approach is to study their more
accessible main predator, the leatherback turtle.
Leatherbacks explore variable oceanic environments
as they undertake long-distance migrations
every 2-3 years from tropical nesting sites to
temperate foraging grounds to feed on jellyfi sh.
Their behavior is therefore deeply infl uenced when
a shift in the abundance of jellyfi sh takes place.
This species can therefore be considered a bioindicator,
since its migration habits may help us
understand how natural and human-driven environmental
changes affect marine ecosystems.
Dr. Sabrina Fossette spent several months in
French Guiana to equip turtles with satellite tags
and follow them during their migration across the
Atlantic Ocean in search of their gelatinous meal.
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