cod
Active Member
So here is a little interesting thing that has had me puzzled....Maybe some of you Florida boaters have heard of this... I brought the boat to Florida from NY in November and on the way down each morning I would do my routine check in the engine room. Well somewhere in Florida waters, I started hearing this sound almost like rice crispy cereal after you pour the milk in..... Well all kinds of things were going through my head.....did I hit something and the hull is taking in water and expanding? The boat was performing perfectly and didn't notice any changes. I even had the boat short hauled by Marine Max in Naples as it was an uneasy feeling going back to NY for a couple of weeks. They inspected the hull and all looked fine....Well we just returned from a week long trip and while cleaning hearing it even more in other areas of the boat. Finally decided google it...... Turns out it's common in southern waters..friggin shrimp! Lesson learned.... Before you spend $600 for a short haul, google it idiot!!
Below is one of the many articles I found.... Maybe this will prevent another CSR member from scratching their head.......
As a cruiser, when you get to the warmer waters in Florida and further south, you may hear noisy crackling sounds coming from beneath your boat’s hull at night. The noise can be shocking if you do not know what you are hearing; is the boat breaking apart you think? The sound may be described as bacon cooking in a frying pan, the crackling of dry wood burning or Rice Krispies in a bowl of milk.
On the docks, it is often said that these sounds were merely krill feeding on the marine growth of your boat’s hull. Not so say marine biologists, it’s the sound of snapping shrimp.
The shrimp, Alpheus Heterochaelis, is a tiny one inch crustacean that exists in the shallow waters of sub tropical seas. It has two claws’, one larger than the other, which it uses to stun its quarry, such as tiny crabs, by snapping the largest claw close.
Researchers have only a short time ago found out how these little shrimp produce so much noise. At first they believed it was the clicking of the shrimps’ enlarged claws. And it is… more or less.
But it is now reported that the startling snap comes not from the clap of the claw itself but from a bubble produced by the claws’ quick closing movement.
Below is one of the many articles I found.... Maybe this will prevent another CSR member from scratching their head.......
As a cruiser, when you get to the warmer waters in Florida and further south, you may hear noisy crackling sounds coming from beneath your boat’s hull at night. The noise can be shocking if you do not know what you are hearing; is the boat breaking apart you think? The sound may be described as bacon cooking in a frying pan, the crackling of dry wood burning or Rice Krispies in a bowl of milk.
On the docks, it is often said that these sounds were merely krill feeding on the marine growth of your boat’s hull. Not so say marine biologists, it’s the sound of snapping shrimp.
The shrimp, Alpheus Heterochaelis, is a tiny one inch crustacean that exists in the shallow waters of sub tropical seas. It has two claws’, one larger than the other, which it uses to stun its quarry, such as tiny crabs, by snapping the largest claw close.
Researchers have only a short time ago found out how these little shrimp produce so much noise. At first they believed it was the clicking of the shrimps’ enlarged claws. And it is… more or less.
But it is now reported that the startling snap comes not from the clap of the claw itself but from a bubble produced by the claws’ quick closing movement.
