Raouf Kalada

speaker

23 appearances 1 recordings 1 series first heard Jun 2026 last heard 9 Jun

Raouf Kalada’s voice in public audio — every appearance, attributed to the second.

Trend

recordings per month · last 12 months

Recordings per month over the last 12 months — 1 in all, peaking in Jun 2026 with 1.

newest first · ▶ plays the moment

Gastropod · What the Shell? Cracking the Lobster's Mysteries · 9 Jun 2026 podcast

Uh sales grew thirty, forty percent.

very important piece of information in uh the fish and fisheries industry.

Just think about

the tree with the three rings in any trunk, by counting those rings, you can uh estimate the age of this tree.

So at the end of the day, by counting the rings in the otolith, you can say how old is this guy?

All the crustaceans in general, and the crustacean is the group of animals that include lobsters, shrimps, and crabs.

Unlike fish, they do not grow unless they molt.

And the word molt means the animal sheds off all her structure.

So even any rings that can be accumulated through.

were believed to be lost during the molt.

So instead, scientists and lobstermen guess a lobster's age by its size.

And scientists found out that uh this method is not very accurate.

So we tried the uh carapace, uh the tail, the appendages, stomach.

And we managed to get this teeth like structure and it's called gastric milk.

But they cannot be digested before they are smashed.

So the animal, after chopping the food particles, swallow it into the stomach.

The stomach has

about three uh pieces that look like teeth and if you know their place you will not miss it.

Dig out the stomach and if you feel it with your two fingers you will feel the teeth structure inside the stomach.

So this was a breakthrough in the study of the American lobster.

Showing 1–20 of 23 · page 1 of 2