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Re: NFC: Goldfish chase trout away

You could just take a .22 rifle and some bread out to the pond.  Throw out the bread
and then shoot the fish.  Oh, yea... the lead in the bullets is toxic to the fish.
Well there goes that idea.

Wright Huntley wrote:

> Chris Hedemark wrote:
> >
> > Eric Coffman wrote:
> >
> > > Maybe their are some sterile hybrid striped bass or muskuelege they can use?
> > > Something that wont reproduce and will be fished out in a few years. After
> > > they eat the goldfish.*smile**
> >
> > If I understand it correctly, it is pretty easy in the aquaculture
> > business to produce a large run of male fish.  Now I don't know if these
> > are NORMAL males (XY chromosomes)  snip...
>
> Fish don't have sex determined by chromosomes, and many species of fish can
> change sex as needed. I suspect this method might have some problems. IDK.
>
> Predators do not *have* to eat the goldfish. Something that interferes with
> reproduction is usually more effective. [A species-specific disease often is
> the very best.] The goldfish get old and die, usually fairly early if the
> feed is really good.
>
> Malaysian Trumpet Snails are the most predacious egg-eaters I have ever
> found. Those are the long spiral goodies that look like a mini-cornucopia or
> ice-cream cone. Fish that do not nest and guard their eggs, or bear young
> alive, have real difficulty in propagating when MTS are present in any
> quantity. They burrow in the sand and are murder to eliminate. They have
> shells too tough for the most voracious loach.
>
> Combining snails with live bearers, like damnbusia or mollies, the few eggs
> that hatch can not grow up as the livebearers eat them all. This is a
> problem in most of our desert springs. Folks dump aquaria, including fish,
> plants and snails, and we have an ill-informed group of biologists who
> refuse to understand the problems with damnbusia. They have formed their own
> psuedo-scientific society and publish "learned" papers, while advocating the
> spread of the nasty little murderers into all kinds of native-fish waters.
> Several California coastal counties are strongly under their influence, so
> our natives are in really short supply, now.
>
> *Gambusia affinis* and related species are not at all good as mosquito fish.
> They eat eggs and young of the native fish, and are invariably *worse* at
> controlling mosquitoes than the natives they crowd out. They *could* be part
> of a control program if an exit strategy is in place before introducing
> them. [I realize this is an unpopular process in the federal government
> these days. ;-)] Incompetent biologists adore them, because they are so easy
> to breed even *they* can keep them alive. That also makes them really tough
> to eradicate when the job is done, tho.
>
> Wright
>
> --
> Wright Huntley, Fremont CA, USA, 510 494-8679  huntleyone at home dot com
>
>       To all gun-control advocates: Please just place a sign
>       on your front lawn that reads: "This home is gun-free."
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