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$800 million obstacle course fish zapper

$800 million obstacle course fish zapper

newtboy says...

Technically no, it's not about ballast tanks, but in a larger sense it's about stopping the spread of the carp. I'm just pointing out that no matter how well they block the river, there are other ways the fish can enter the lakes.
Also, as the video indicated, the methods have already failed since they've found the fish in the river past all the barricades.
I wonder what they've done to stop flooding from bypassing the barricades altogether.

I've been interested in this issue for decades, ever since the earlier videos of jumping fish smacking boaters started showing up. These days they allow electric fishing and other ecologically unfriendly methods in a last ditch effort to slow the spread, and none of it's working. If only someone would open a fish emulsion factory and make catching them an economically viable industry, maybe progress would be made....or not.

eric3579 said:

I guess my point is, is that ballast tanks are not an issue this fish net is trying to address. From what this video shows, it's exclusively about fish swimming in from this particular river.

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nanrod says...

I tend to agree. Any investigation has to begin with intent. My first thought was Asian Carp.

MilkmanDan said:

Although I don't know the specifics here, and I understand that ignorance of the law is not a valid defense, it seems flat out insane to criminally prosecute the guy.

I give him the benefit of the doubt that they are telling the truth and this at least started by bailing rainwater out of a boat. That's a very normal activity, no reason to presume that any harm could come of it.

Then, first bucket gets tossed in and he sees that big splash. It's Florida, so there could be lots of potential explanations. It might be bigass catfish. It might be alligators. Could even be dolphins, depending on where they are in Florida. ...And, it might be manatees, although that probably wouldn't be the first thing I would think of.

So, big splash. I'd be surprised. My first reaction would be: "I wonder if it will happen again after another bucket." NOT "Oh dear, perhaps I am frightening some poor defenseless little creatures and should immediately cease what I'm doing." If I came the the conclusion that it was gators (which seems more likely/reasonable than manatees to me, although I don't live there), it would even stand to reason that frightening them off would be a good thing to do -- encourage them to move away from populated areas.

Given all that, it seems very unlikely to me that the dude had any malicious intent. If he knew they were manatees and knew that stressing them out like that could negatively impact their health, perhaps punishment would be in order. But if he thought they were anything else (fish / gators / whatever), or just plain didn't know, continuing to bail the boat in an attempt to get whatever they might be to swim away seems like a very reasonable thing to do.

Educating people that "hey, if you see something like this happening, it might be manatees and you should try to avoid stressing them out" seems like by far a better and more rational option than "throw the animal torturer in the slammer!"

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nanrod says...

There are a number of other techniques for suppression or elimination of particlular pest species around the world. Check out the Sterile Insect Technique being used against the screwworm fly which has already 100% eliminated that particular nasty from the US and Mexico. There is also the Daughterless Carp Project in Australia aimed at eliminating an invasive carp species from the Darling River system. It involves releasing genetically modified male carp that are incapable of producing female offspring. Unlike 20 or 30 years ago I think the possible consequences of these various techniques are now being considered.

newtboy said:

Whenever there's a mosquito vectored disease, people talk about eradicating mosquitos, but never consider their role in the food chain, and it is not a small role.
They also never consider the effects of the eradication methods, which are often poison sprayed into the air or onto ponds. Decades ago, a 12 year old boy designed and made a device for eradicating mosquitos in water using sound waves for a science project, and it worked. He tuned his device to resonate at the same frequency as the gas bladder in mosquito larva, popping it and killing the mosquitos without effecting anything else, and leaving no residue. For some reason, I never hear about that method being used, but instead often see people dosing small ponds with poison, oil, or bacteria, all of which harm other organisms.
Targeting single strains of mosquito with genetics may be a good way to deal with disease issues, but will certainly also have unexpected unpredictable consequences. I hope they remember the fiasco caused by creating killer bees and study the issue from all sides thoroughly before releasing them into the wild.

Self Sacrificing Carp

blackfox42 says...

@newtboy ah, okay, sorry. I didn't realize they were carp. We have a carp problem here in our Murray River, such to the extent that if you catch a carp it's illegal to throw it back! (and as a side note it makes it difficult to fish as after an hour or so you can't cast into the water for all the pelicans, eying off your pile of carp )

newtboy said:

The ultimate TERRIBLE fishing spot. No one wants to eat Asian Carp, and nothing else can live where they've taken over, which is more and more of the Mississippi and it's tributaries all the time. :-(

Self Sacrificing Carp

Stormsinger says...

I've never actually agreed with the idea that nobody wants to eat them. Very few people eat the local carp, but outside of having a -lot- of bones, they make a great meal, with a wonderful flavor. And you can minimize the problems with the bones in a few different ways. Once they hit about 12-15 pounds, you can cut them into steaks, with two bones per steak. Or you can smoke and can them (my own personal favorite, as they soak up the smoke better than any other fish I've ever tried), which softens the bones until they're edible, just like canned salmon.

I'd have more worries over eating -any- fish caught in the Mississippi than I would over this one species from any other waters.

Self Sacrificing Carp

newtboy says...

The ultimate TERRIBLE fishing spot. No one wants to eat Asian Carp, and nothing else can live where they've taken over, which is more and more of the Mississippi and it's tributaries all the time. :-(

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VidRoth says...

Man, between age 8 and age 14 or so, I could take my bike apart down to the bolts, and put it back together ready to ride in about 30 mins... and I could change a flat without even thinking about it--my main concern was guilting my parents out of inner-tube money.

But... 45 seconds? Holy carp. That's a seriously fast ride-time change. Props.

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