Archive PAL (720-576)4 Videos

Common Mussel filter-feeding – Schlieren Imageing – Seeing the Unseen

To See The Unseen: A Common Mussel is filter-feeding and Schlieren Imageing techniques reveal the fluid-flow that cannot be seen with the naked eye. The fluid-flow itself is “work done” by the mussel, to suck seawater in, filter food particles and uuumph the water out agan, all in a flow-like stream. A bit of science […]

Snakelock Anemone “walks” up rock, has a fight, then falls off

  The Snakelock Anemone “walked” up near the Plumose Anemone, had a fight, and lost its “footing” and fell off. In a marine water tank, a Snakelock anemone, was observed to be on the move. A stills camera was set up and images taken at certain moments to track its movement. The sequence of stills […]

Starfish Pokes its Stomach Inside Out

A starfish pokes its stomach inside out, sliding it through the narrow gap in the mussel shell in order to feed by dissolving the living flesh inside. The set up for this video sequence, reveals what occurs in the wild, but is otherwise hidden and out of sight on the underside of the starfish. One […]

Sea Anemone tears itself into 2 over 12 hours (1min timelapsed)

The Sea Anemone was ‘sat’ on top of a brick in a small sea water tank, when it was noticed to be quivering. Longitudinal fission (effectively ripping themselves into 2) is a known occurrence for these Snakelock anemones. . . so it was wondered if the unusual quivering might be the beginning of that process […]