Crackling noise from hull at night. ! NOW. ! Reassurance needed. !

[TactilePaul]

We are on a bouy at Yarmouth. All is calm , except ... I figured it must be rain , light rain.., but no. Sounds like a crumpled plastic bag expanding , but from all over the hull , any ideas. ?? Thanks.

 

[sarabande]

Shrimps.

 

[Robert Wilson]

Shrimps.

+1

 

[Deleted member 36384]

It happens up here in Scotland and IIRC from a previous forum post it is the bugs in the water making a noise and being amplified through your hull.

 

[Cardinal]

If you are near a fish farm, perhaps it is a seal scarer?

 

[VicS]

Shrimps.

Polyester boring worms.

 

[RichardS]

Shrimps.

Either shrimps or those fish with little teeth that graze on your hull.

Richard

 

[Robert Wilson]

Just a thought
If it was in daylight hours, it might be ducklings scraping the hull for "bits". I had that at Cambrai Island centre in 2014. Sweet wee things, but fearful noise inside!

 

[chrisclaydon]

Pistol shrimps. Here's how. Fascinating! https://www.youtube.com/watch?v=1wBYPjkGRdo

 

[Neeves]

Up on the Great Barrier Reef the Parrot fish graze on a weedy hull (the AF has never been reported as doing them harm) and you can here the whales singing as they pass by. The latter is a bit surreal.

Jonathan

 

[William_H]

Yes we have it here on Swan River (west Oz) but we call them snapper prawns. Very noisy but hard to actually find in day light. ol'will

 

[TactilePaul]

Brilliant stuff thanks. I had concluded that it must be some form of marine life , it’s 5am now and they are still crackling away , nearly time for my rice crispies !!
I was worried that it was an electrical fault , light switches make a similar noise when wet , but a. It’s not 240v , b, it comes from all over the boat , and c . It carried on with batteries Isolated. !

 

[fisherman]

Bait a shrimp pot, hang it overside.

https://www.fishingmegastore.com/tr...wDvBQaoWBuYZYYWFe8aIO9bC9FSuGcGBoCFy0QAvD_BwE