"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.

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

weird clicking noises when boat motionless
 

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.

For the record the boat is in San Diego Bay.


"Falky foo" wrote in message
om...
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.

"Falky foo" wrote in message
om...
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.


You have heard the mysterious sound of biological noise. Shrimp or other
creatures on your hull.

The first time I took our Navigator south from MA to Florida, I started
hearing the clicking/popping sound as we got south of Norfolk, VA. The
engine room of the Navigator is fully insulated and I thought at first that
the sound was the insulation adhesive on the inside of the hull popping as
the water temperature was slowly increasing. Initially, I could only hear
it when I went into the engine room to check oils, etc, but by the time we
got to St. Augustine, FL, I could hear it faintly in the main stateroom.

Being my first long distance trip in a new boat, I was obviously getting
very concerned, thinking the hull was cracking or some stupid thing, until
my brother called me from the dock while we were tied up in St. Augustine.
I went over to where he was and he told me to listen to the hulls on some of
the other boats. They were all cracking and popping.

We stopped also in Titusville, FL and were talking to the harbormaster on
duty. He was an old timer and entertained us with all kinds of sea stories,
shuttle launch stories and other interesting tales. I happened to mention
the cracking and popping and he explained it was a biological noise - most
likely shrimp - and that I was only one of hundreds that had asked him about
the noise over the years.

Eisboch

I happened to mention
the cracking and popping and he explained it was a biological noise - most
likely shrimp - and that I was only one of hundreds that had asked him
about
the noise over the years.

Eisboch



I guess it's a question as old as sailing itself.

I've been asking myself the same question now for years :-) We're in a
slip on Harbor Island, and hear the same thing. Guess I have an answer now.

Keith Hughes

Falky foo wrote:
I happened to mention
the cracking and popping and he explained it was a biological noise - most
likely shrimp - and that I was only one of hundreds that had asked him

about

the noise over the years.

Eisboch




I guess it's a question as old as sailing itself.

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

Shrimp? Must be "popcorn" shrimp!

TDS
S/V Cimba


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.

"Keith Hughes" wrote in message
...
I've been asking myself the same question now for years :-) We're in a
slip on Harbor Island, and hear the same thing. Guess I have an answer
now.

Keith Hughes
And I'm on the Rock River in Northern Illinois. Have always heard the same
noise when anchored and assumed here that it was rocks rolling along the
bottom or carp feeding on the algae (or whatever) that builds up on the
bottom of the boat.
Tom.

They're called "Brine Shrimp", and when our boat was moored at Harbor
Island, we heard them too. Other noises you may hear in San Diego bay are
"Croakers" (a species of fish) and Harbor Seals (as they swim under your
boat to catch fish). Every once and a while, you may also hear the Dolphns
that the Navy trains for their "Special Ops" (they sometimes take the
dolphins down the channel behind Harbor Island.

--
Paul

=-----------------------------------=
renewontime dot com
FREE email reminder service for licensed mariners
http://www.renewontime.com
=-----------------------------------=

If they're brine shrimp that means they're SEA MONKEYS!!

Her: Honey what are those popping noises coming from outside?
Me: Those are sea monkeys.
Her: No really sweetheart, what are those noises?
Me: Sea Monkeys
Her: I'm serious!!
Me: SEA MONKEYS!!




"renewontime dot com" wrote in message
...
They're called "Brine Shrimp", and when our boat was moored at Harbor
Island, we heard them too. Other noises you may hear in San Diego bay are
"Croakers" (a species of fish) and Harbor Seals (as they swim under your
boat to catch fish). Every once and a while, you may also hear the
Dolphns
that the Navy trains for their "Special Ops" (they sometimes take the
dolphins down the channel behind Harbor Island.

--
Paul

=-----------------------------------=
renewontime dot com
FREE email reminder service for licensed mariners
http://www.renewontime.com
=-----------------------------------=

"Falky foo" wrote in message
. com...
For the record the boat is in San Diego Bay.



My boat is in Sydney, Australia and I get that noise at night too.

"Falky foo" wrote in message
om...
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.

"renewontime dot com" :

Every once and a while, you may also hear the Dolphns
that the Navy trains for their "Special Ops" (they sometimes take the
dolphins down the channel behind Harbor Island.

Where do people get these crazy ideas from? The very idea that the Navy
trains dolphins belongs in woo-woo land! Please try to get your facts right
in the future. The dolphins are training the Navy to give them free fish! :)
Now you know where your tax dollars are going. :)

Earl Colby Pottinger

--
I make public email sent to me! Hydrogen Peroxide Rockets, OpenBeos,
SerialTransfer 3.0, RAMDISK, BoatBuilding, DIY TabletPC. What happened to
the time? http://webhome.idirect.com/~earlcp

Quick, tell the Navy they are in woo-woo land.

http://www.navytimes.com/story.php?f...25-1715834.php

Earl Colby Pottinger wrote:
"renewontime dot com" :


Every once and a while, you may also hear the Dolphns
that the Navy trains for their "Special Ops" (they sometimes take the
dolphins down the channel behind Harbor Island.


Where do people get these crazy ideas from? The very idea that the Navy
trains dolphins belongs in woo-woo land! Please try to get your facts right
in the future. The dolphins are training the Navy to give them free fish! :)
Now you know where your tax dollars are going. :)

Earl Colby Pottinger

They're 'pistol shrimp'. One of their claws is small, and the other is
rather large, and one of the joints in the big claw cavitates, so I've
heard, when they operate it. I've heard them in Marina del Rey as well as in
San Diego Bay.

Tom Dacon

"Falky foo" wrote in message
om...
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.

Every once and a while, you may also hear the Dolphns
that the Navy trains for their "Special Ops" (they sometimes take the
dolphins down the channel behind Harbor Island.

Where do people get these crazy ideas from?

Sorry Earl, crazy as it may seem, it's all true. I'm a retired Lieutenant
Commander from the US Navy, and back in the 70's and 80's trained dolphins
were referred to (this was Top Secret info back then) as the "Mark 8", used
for anti-swimmer and anti-mine defense. One of the ships I served on used
the "Mark 8" several times in training exercises. The holding pen for the
dolphins and harbor seals that the Navy trains is just to the North of
Shelter Island. If you've ever sailed there, I'm sure you've seen them. In
fact, just about everyone that's ever sailed San Diego Bay has seen the
Special Ops folks driving Boston Whalers with a -blue foam triangular-
carrier on deck, that's what they transport the dolphins with.

Shortly after declassifying the project, the Navy announced that they were
going to disband it, but as far as I know, the pens, the animals and the
program are still active.

This is not to say that I condone this use/misuse of our waterborne friends,
I'm just telling you that it is being done.

--
Paul

=-----------------------------------=
renewontime dot com
FREE email reminder service for licensed mariners
http://www.renewontime.com
=-----------------------------------=

Subject: weird clicking noises when boat motionless
From: "Falky foo"

For the record the boat is in San Diego Bay.


"Falky foo" wrote in message

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.

Most likely shrimp or other critters.

Capt. Bill

I dont belive it could be Shrimp as we get that noise in New Zealand
in places where there are no shimp.

I have noticed that this noise only occurs in harbours with a sandy or
muddy floor but not with a rocky bottom.
Other theorys have been that they are small crabs on the seabed

On Sat, 22 Jan 2005 14:30:47 -1000, "renewontime dot com"
wrote:

Every once and a while, you may also hear the Dolphns
that the Navy trains for their "Special Ops" (they sometimes take the
dolphins down the channel behind Harbor Island.

Where do people get these crazy ideas from?

Sorry Earl, crazy as it may seem, it's all true. I'm a retired Lieutenant
Commander from the US Navy,
///
This is not to say that I condone this use/misuse of our waterborne friends,
I'm just telling you that it is being done.


Hmmm...someone didn't read the dolphin post quite well enough, I'd
say?

:-)

Brian W