Two sea cuccumbers feeding at Station M

Deep-sea feasts tied to sea cucumber population booms

The muddy abyssal plains are dark and cold and there’s usually not much for animals to eat. However, large pulses of food may reach the deep seafloor every decade or two. A recent paper shows that some sea cucumbers may experience huge population booms following these deep-sea “feasts.”
Profiling float on transom of research vessel John Martin

Rescuing an open-ocean float on a stormy day

About a week ago, MBARI marine chemists Hans Jannasch and Ken Johnson went on a little boat ride, chasing an open-ocean profiling float that was drifting in the California Current, about 100 miles offshore.