Last
month some of the Collin Lab members set out to the field at first light. They were headed all the way across the
country (a full hour’s drive!) to Galeta Marine Laboratory on the Caribbean
coast of Panama. This lab hosts research
but is primarily used for outreach and education for kids in the city of
Colon.
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Panamanian students learning about their
environment from STRI Nature
Guides.
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With seagrass lagoons, mangroves and coral
reef patches, Galeta is one
of the most
well-studied Caribbean sites in Panama.
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The goal of the trip was to hunt for peanut worms. They are the center of a biological
controversy. Are they regular segmented
annelid worms that have lost their segments.
Or is the un-segmented body with a strange inverting proboscis unique
and evolved independent of other worms? We
join Tupper Postdoctoral fellow Michael Boyle in a search of these peanut worms.
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Intern Allan Carrillo searches for substrate |
The worms are often found inside rock crevices and coral rubble or mud
flats. That’s why, we needed to collect
rocks and coral rubble from shallow water (0.3-2 m).
We didn’t just see worms. If
course, we saw slugs and snails too. The reef-flat is full of interesting invertebrates and seaweeds.
But, most important, we found them!!! A bunch of specimens of Phascolosoma perlucens
and Aspidosiphon sp. that with luck, will
spawn. If they do, Michael might use
them as a model for his studies of evolution of development.
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Michael carefully cracks open dead coral heads to look for the worms. |
And....after all that hard work... here he is!
Phascolosoma perlucens!
Post prepared by: Allan Carrillo