Another perspective on Orca Attacks

[SailingHarmonie]

https://marineindustrynews.co.uk/vid...to-deter-orca/

I have to say, the representative of the Sea Shepard group strikes me as unbelievably arrogant and self-centered

He seems to be incapable of empathy for any member of his own species. He basically comes out and says the attacks either are not real, or are not a problem because nobody has died--yet.

I think the organization would find people more receptive to listening if they hired someone with a clue.

[TeddyDiver]

About those blades on the rudder, I'm pretty sure orcas are smart enough not get to hurt on them as they have managed to avoid also propellers. Might find some other fun to do with the boats thou..

[boatman61]

Can't comment as the link does not come up..

[barnakiel]

Sea Shepherd are business like any other. They say what is good for their business, not yours.


Btw I think that German scientist who pointed out that orcas' attacks coincide with the area where Moroccan and Spanish drug smugglers dump tons of hash and cocaine each year deserves more merit. Why should drugged orcas act any different from drugged humans ?


I say forget Sea Shepherd stories. They are made to sell Sea Shepherd merchandise.


Still in doubt? Visit seashepherdstore.com. Be your own judge.


b.

[SailingHarmonie]

Originally Posted by barnakiel

Sea Shepherd are business like any other. They say what is good for their business, not yours.


Btw I think that German scientist who pointed out that orcas' attacks coincide with the area where Moroccan and Spanish drug smugglers dump tons of hash and cocaine each year deserves more merit. Why should drugged orcas act any different from drugged humans ?


I say forget Sea Shepherd stories. They are made to sell Sea Shepherd merchandise.


Still in doubt? Visit seashepherdstore.com. Be your own judge.


b.

barnakiel,

I have been involved enough with "non-profits" to know there is truly no such thing.

I have seen major environmental advocacy groups knowingly and deliberately lying when it suited their bottom line or local political goals. In my personnel experience it has happened MORE than for-profit corporations doing the same. The non-profit can justify their lies because they are all "in a good cause."

I just forget that.

[ArmyDaveNY]

Originally Posted by SailingHarmonie

barnakiel,

I have been involved enough with "non-profits" to know there is truly no such thing.

I have seen major environmental advocacy groups knowingly and deliberately lying when it suited their bottom line or local political goals. In my personnel experience it has happened MORE than for-profit corporations doing the same. The non-profit can justify their lies because they are all "in a good cause."

I just forget that.

Spot on.

[Kello]

Truly ANOTHER PERSPECTIVE. Recently I was too hot and tired to continue working on my boat, so I joined my not as hot and tired neighbors at the pool, and one of them had a brilliant (to me) insight on the Orca attacks. He said that for whales swimming under our boats that when they look up they see is something that looks like the silhouette of a big whale invading their territory, so they instinctively attack it. Sounds logical to me. I forget which neighbor that was, so if you want to send money like he was a nonprofit I'll keep it for my many impending boat projects.

[boatman61]

Obviously never been near an Orca else he'd know that they like a complete picture, from the surface as well as below.
As for the boats that have been 'played' with, it's likely the crew and skippers first experience with Orca as well from the description of huge animals attacking them.
Yes juveniles can look big at 10 ft but when you've seen adults from 25 to 30ft.. that's big, especially if your on a 32ftr..

[GordMay]

Originally Posted by SailingHarmonie

...I have been involved enough with "non-profits" to know there is truly no such thing...

Aren't atheist charities non-prophet?

I always wanted to be my own boss; so now I run a nonprofit
Not by choice. I’m just a shitty businessman.

[hpeer]

Gord,
I was pretty involved with what many would call an atheist non-profit for a quite a while. In this case it was not strictly atheist but rather non-theistic. That is which God or diety you believed in was irrelevant. Their point was that, here on Earth, how you behaved towards fellow humans was of consequence. This is known as Ethical Humanism. It’s status as a religion has been legally challenged and affirmed by State Supreme Courts as it provides the same types of ethical guidance.

[Symphony]

The wild animal bunch believe their opinions are "science" but they fail to see that protecting and promoting creatures like grizzly bears, wolves, orcas, sea lions is only their preference for such predators. If you want to promote bio-diversity and put the ecosphere back like it was - why not protect and promote creatures like polio virus, e.coli, brown rat, ebola? They deserve the same treatment even though they are not cuddly looking.

Knives on rudder? I hope some non-profit Protect the Rudder group can develop small spikes to line a rudder, much like are used to prevent birds from roosting on building ledges or mast tops. I can see that small thin steel spikes on all sides of a rudder would not upset water flow as much as knives would - and would deter even the most aggressive orca.

[senormechanico]

How about an electrode underwater on each side the stern, which could be energized from a button at the helm when necessary? If the invader gets too agressive, give it a shot as if to say,
"BACK OFF JACK!"


An inverter with an incandescent lightbulb in series as a current limiter ought to work nicely.

[Seafarer7]

Originally Posted by senormechanico

How about an electrode underwater on each side the stern, which could be energized from a button at the helm when necessary? If the invader gets too agressive, give it a shot as if to say,
"BACK OFF JACK!"


An inverter with an incandescent lightbulb in series as a current limiter ought to work nicely.

Earlier suggestion from:
https://www.cruisersforum.com/forums/f2/orca-rudder-attacks-solution-254488-10.html#post3799620

>>>
Wondering why it seems no one has thought of an “electrical” solution to this issue. A mild intermittent shock therapy carefully controlled and manually administered via two wires trailing aft of the vessel-under-attack , on either side of rudder, should discourage orcas within a few feet of the rudder with no harm.

This site details a way to build something appropriate, as well as a bit of history on “electrofishing”:

https://www.techwalla.com/articles/h...a-fish-shocker

When done right it should administer mild to median increasingly unpleasant sensation to an Orca the closer it approaches the rudder.

In addition to causing no permanent harm to Orcas it should teach the Orca population to avoid boats in general, and reduce inadvertent collisions. Similar concept to dog training collars.

[dannc]

Originally Posted by senormechanico

How about an electrode underwater on each side the stern, which could be energized from a button at the helm when necessary? If the invader gets too agressive, give it a shot as if to say,
"BACK OFF JACK!"

An inverter with an incandescent lightbulb in series as a current limiter ought to work nicely.

Fishery biologists in the US go electrofishing to study fish populations, https://en.wikipedia.org/wiki/Electrofishing.

When I was doing this many moons ago, a generator was put in a small boat with two arms running off the bow. One arm has a positive conductor and the other arm is negative. Fish caught in between are stunned, attracted to the anode, and easily netted so they can be studied. The fish are not harmed.





One would think something like this could be created to make it unpleasant for the Orca's attacking rudders. Just deploy and turn on if the Orcas start playing.

[Setbud]

Originally Posted by barnakiel

Sea Shepherd are business like any other. They say what is good for their business, not yours.


Btw I think that German scientist who pointed out that orcas' attacks coincide with the area where Moroccan and Spanish drug smugglers dump tons of hash and cocaine each year deserves more merit. Why should drugged orcas act any different from drugged humans ?


I say forget Sea Shepherd stories. They are made to sell Sea Shepherd merchandise.


Still in doubt? Visit seashepherdstore.com. Be your own judge.


b.

“Oh no! Drugged humans are biting sailboat rudders?”