Caroline Durif
speaker
146 appearances
1 recordings
1 series
first heard Nov 2025
last heard 26 Nov
Caroline Durif’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Nov 2025 with 1.
Appearances
And it increases also at the reproductive stage.
But what we think is the major signpost or cue for them to navigate is the Earth's magnetic field.
And that's what I've been working on for 20 years.
Partly because we know that many other organisms, like turtles, birds, butterflies, use the Earth's magnetic field.
In the magnetic field, you have three characteristics that you can use.
So you have the direction of the field, which is magnetic north, so that's your basic compass, but you also have the intensity, the pull of the magnet.
which changes between the pole and the equator.
So it's very strong at the poles and it's weak at the equator.
So if you can sense the intensity of the magnetic field, then you know where you are more or less on a latitude.
And if you also can sense the magnetic north, then you can more or less navigate.
So this is probably the only model that makes sense with regards to finding the Sargasso.
Well, for one, we've never found the spawning area.
I mean, literally, we... That was going to be my question.
The only reason we know is that because this Danish oceanographer trawled the Atlantic Ocean in the 19-something, and he measured leptocephalus larvae for 20 years, and he saw that the smallest ones were in the Sargasso Sea.
But up to very recently, that was all we had.
Now we're able to track eels, and this is where David's studies come in.
We know pretty much where they are migrating, where they're spawning, but we've never been able to observe it.
I think that's fascinating.
We've never found eggs.
It's still a question.
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