Hello everyone! I’m starting a new series of science writing tagged with “What’s in the Lab?” to showcase behind the scenes of marine science research work. These posts, consisting of pictures and videos, are brief, informative, and hopefully, give you a sneak peek at what marine biologists do!

Here’s the first one! πŸ™‚

This is a 2-month old juvenile white ball sea urchin, whose scientific name is Salmacis sphaeroides. Sea urchins reproduce by releasing (also called spawning) their eggs and sperm into the water column: egg water is clear with tiny white spots and sperm water is cloudy. This little one was produced by fertilising the egg and sperm water together, and incubated in the chambers. Two months later, ta-da! A miniature version of the adult sea urchin.

Photo 6-10-17, 3 56 31 PM
Two-month old juvenile sea urchin, approximately 2mm width.

It is quite fascinating to observe it under the microscope, wriggling its tube feet wildly in the air. But this behaviour is important for catching food, catching currents, or to simply move around. Watch this 30-seconds video to see some action! πŸ™‚