Rosalie B. wrote:

"Falky foo" wrote:

Whenever my boat's at anchor or in slip at night, I hear weird rapid and
random clicking noises coming from, I think, the bottom of the boat. It's
sort of the sound of pop rocks on your tongue or really loud champagne
bubbles or of pop corn popping in the microwave (but not that loud).

Somebody told me it was barnacles feeding. Is that right? It doesn't
happen when the boat is moving and I don't remember if it happens in the
day.


It's shrimp - at least my boat doesn't have barnacles on the bottom.

As to the question of whether you can hear it during the day - it
depends on how many shrimp and how quiet it is, and also on the
species - when they feed etc. I first heard this noise when
snorkeling off St. John USVI. So I think if you swim in the water,
you can hear this also even during the day. I think it may be one of
the ways that dolphin find the shrimp.

If you use the toilet at night without turning on the light and you
are using water from outside the boat to flush, you can see
phosphorescence in there too.


grandma Rosalie

grandma Rosalie