DNA altered Superfish

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Read the book, "FOUR FISH"...Dateline just ripped the story off, typical news media. The book centers around "wild caught" food and how we are basically decimating and causing the extinction of many ocean fish, also the feed used on these "superfish" is created from fish...I believe the ratio is it takes 4 lbs. of fish meal to produce 1 lb. of edible salmon. We are basically killing the ecosystem from the bottom up (no bait fish, no food, no predators). As fans of fish we need to be more vocal in the preservation and restoration of ocean and freshwater habitats. PUT THE BLUE FIN TUNA ON THE ENDANGERED SPECIES LIST. The answer "well, we don't know how to count them in the wild, so we don't REALLY know how many there are...so we can catch as many as we want!" doesn't work anymore. I wish more people would be educated. *steps down from the soapbox*
 
I didn't read the article so it might be the same process but there are fish called "triploid trout" in which hatcheries alter the chromosomes(by basically pouring hot water on the eggs) in order to make sterile fish with that grow extremely fast since they don't waste any energy on the reproductive cycle among other things. Google "frankenfish" if anyone is interested. Triploid fish also occur in the wild, although very rarely.
 
Also, the process is still limited by natural maximum sizes so and 18 inch convict probably wouldn't happen, although a 8-10 incher might be possible. With the trout they are finding that they can grow them very quickly in hatcheries to close to the world record sizes. Faster growing 12 inch loaches anyone?
 
I want very slow growing (though already adult-looking) arapaimas or red tailed catfish. That's the exact opposite for datnoids and loaches.
 
Naos1984 said:
I want very slow growing (though already adult-looking) arapaimas or red tailed catfish. That's the exact opposite for datnoids and loaches.
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See I'm with him. I would love to have arapaima or a goonch, but due to their huge adult size I never will. If there was a way to alter their DNA without affecting their health to make these true monster fish max at say 30" I'd be all over it!


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trace said:
See I'm with him. I would love to have arapaima or a goonch, but due to their huge adult size I never will. If there was a way to alter their DNA without affecting their health to make these true monster fish max at say 30" I'd be all over it!


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You can purchase a (mini goonch) bagarius bagarius they only grow to 9"

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Chub_by said:
This is a rule because a faster metabolism and heartbeat lets the body grow older quickly. Just compare a mouse which will get a few years old to a 100 year old tortoise.
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What scientists did to develop the Atlantic salmon Superfish was add part DNA from 2 other fish. From the King Salmon, which grows faster and larger than the Atlantic. Atlantic salmon also grow mainly during summer months, so they also added DNA from some kind of eel so the Salmon grow all yr.
So guess I'm not sure how much lifespan of fish would b affected, just figured id let kno how they created the 'Superfish'. They growing them so salmon will make it to the market/dinner tables faster

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Egon said:
Ahhh so it's the heartbeat rule, got cha........

I vote when we alter the DNA to make the fish larger we disregard the heartbeat rule altogether. What the heck right?
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Definately!
I'd like to alter the DNA of morays so that they could live in freshwater :)

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