Planted fish vs. naturally spawned - Colorado Fishing Forum

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Old 01-28-2008, 04:28 PM   #1 (permalink)
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Default Planted fish vs. naturally spawned

Does anyone know if planted (genetically manipulated) fish can grow as large as naturally spawned fish? After catching stocker after stocker with little size, it made me wonder how big these fish could really get. Seems like all of the large fish are spawned naturally. Could a planted lake trout for example, ever reach state record size?? I, for one, don't know.....
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Old 01-28-2008, 04:44 PM   #2 (permalink)
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Default Re: Planted fish vs. naturally spawned

i think the planted can grow just as big as the natural spawned...as long as they don't get caught right away....the wipers n tiger muskie seems 2 grow pretty good 4 a man made fish
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Old 01-28-2008, 04:47 PM   #3 (permalink)
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Default Re: Planted fish vs. naturally spawned

Planted fish have not "survived" nature and therefore are more suseptible to being caught fast....that's just IMO though. I think they can get as big as naturals, but usually don't.
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Old 01-28-2008, 04:47 PM   #4 (permalink)
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Default Re: Planted fish vs. naturally spawned

Interesting Kraz. Makes me think that being a fry in an altered environment would or should have a detrimental effect on a fish as far as strength to survive or reproduce, or to garner real growth when compared to a fish in a natural environment. I would love to see a chart or data on fish size and how they first started out in life....
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Old 01-28-2008, 06:08 PM   #5 (permalink)
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Default Re: Planted fish vs. naturally spawned

Antero fish are all stockers, or at least were. If the environment is right they can grow pretty healthy.
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Old 01-28-2008, 06:15 PM   #6 (permalink)
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Default Re: Planted fish vs. naturally spawned

I believe most stocked fish can and will grow as large as a wild fish.

When the fish is first stocked, the flesh and muscle tone is different as they have been eating manufactered food as opposed to the natural food base. They also do not have the strength that wild fish exhibit due to living in an environment devoid of the typical stresses wild fish are under. (predation, current, etc...)

But once the farmed fish lives in the "wild" environment long enough, it basically will become wild.

I happen to know the former (retired) Asst Supt. of CDOW state Hatcheries fairly well (he goes to our church). I'll have to ask him sometime.
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Old 01-28-2008, 06:23 PM   #7 (permalink)
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Default Re: Planted fish vs. naturally spawned

Quote:
Originally Posted by nascar or fishing?
Does anyone know if planted (genetically manipulated) fish can grow as large as naturally spawned fish?
As far as I know, the planted fish are artificially fertilized and raised, but they are not genetically manipulated in any way. Their genetics are the same as if the eggs and milt came together in the wild.

And yes, they can grow as large as fish spawned in the wild. The reason you catch so many small ones is that the stockers are just plain dumb. Not having grown up in the wild, they have "learned" that anything that looks like food, they can happily munch on without fear.

Any that survive after a year or two will be indistinguishable from trout that grew up in the wild.
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Old 01-28-2008, 07:47 PM   #8 (permalink)
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Default Re: Planted fish vs. naturally spawned

Thanks for the responses so far...getting more edumacated all the time!
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Old 01-28-2008, 08:24 PM   #9 (permalink)
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Default Re: Planted fish vs. naturally spawned

I agree with Walking Eagle.

Stocked fish are super stupid at first, but any survivors will soon be as smart as the naturally spawned fish.

The upside of hatchery fish is that more eggs survive to fry size than they would in the wild. They are then higher on the food chain when introduced to the wild (less likely to be eaten by insects, etc)

The downside is that disease spreads more easily in a hatchery, and if undetected an contaminate half the state's waters in a short period of time. It happened with whirling disease.

We would not have nearly as many places to fish without hatchery fish.

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Old 01-28-2008, 08:37 PM   #10 (permalink)
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Default Re: Planted fish vs. naturally spawned

can't say for sure but i belive that a large majority of the fish in our water systems are stockers. i don't think that we see a large number of fish make it in the wild. i think the dow stock with all different sizes of fish. a 20" fish can be a recent stocked fish as well as a 10" fish. IMO!!!!!!!!!


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