www.maritime-executive.com/article/orcas-sink-yacht-in-strait-of-gibraltar

You'd want some of those things the salmon guys use to deter seals from the fish pens.

Give 'em a headache.

They learned it, they can unlearn it. Question is how?

Obviously electricity is out.

www.stm-products.com/en/products/fishing-technology/dissuasori-per-delfini-yellow/ddd-03l-ddd-03n~52.html

Dolphin deterrent - haven't read of anyone trying to use them

Edit - someone's doing it: www.yachtingworld.com/news/whale-pingers-trialled-to-deter-orcas-149697

www.facebook.com/share/r/ECQost9rntZKytUT/?mibextid=D5vuiz
Meanwhile this is more of an Oz problem in our northerly latitudes.

I really don't believe in sailing with pets!!

dearjohn said..


Shotguns?

Definately,, they would soon learn.

Sometimes I wonder if Whales are far more intelligent than we think and recognize that we humans are destroying their environment, resent it and are trying to fight back.

Trek said..
Sometimes I wonder if Whales are far more intelligent than we think and recognize that we humans are destroying their environment, resent it and are trying to fight back.

Whale numbers are increasing so they might like any environmental changes that might be happening.
Especially that sea levels aren't rising!
www.bom.gov.au/ntc/IDO70000/IDO70000_60370_SLI.pdf

Yes.
The important message is rising sea levels are not encroaching on dry land, the Maldives aren't being flooded nor are the South Pacific countries.
Sadly, my Leichhardt place won't be waterfront in my lifetime, even if I live another few hundred years.
It would be an interesting research topic why the minimum and mean appear to be rising when the maximum is stable.

Ramona said..
It's the old story of getting your own message across. While there are areas where the sea level is obviously rising there are also areas that have raised several feet in recent times. That's why the maximum is stable.

Totally don't get sea level rise being differential throughout the planet. Barring local man-made effects like large canals or subsistence due to mining or drilling I would have thought that the moon's pull on the tides would be constant and predictable so that overall any rise would even out and be consistent throughout the planet.

moons pull isn't constant, it doesn't orbit in a perfect circle, earth isn't perfectly spherical, doesn't spin on a verticals axis, pull at the equator is nearly vertical, pull at the poles is near horizontal. Ocean floor isn't flat.

Just google the Thwaites Glacier. It's like the plug in the bath. When it goes, which it looks like it's going to, it's going allow all the glaciers behind it to just slide into the sea.

Its going to make that 20cm look like the rainwater you sponge out of your bilge after a few days rain..

www.abc.net.au/news/science/2023-02-16/thwaites-glacier-melting-icefin-revolution-sea-level-rise/101970762
65cm just from Thwaites. It's about a kilometre deep so plenty in it.