So we are back on the topic of bans? I grew up in an area of Canada/US where 60 yrs ago carp and koi had damaged the ecosystem to almost a point of no return. So parts of AU have deemed them noxious, again due to the morons of the world who feel it's ok to let aquarium fish go free into natural waterways. Bans are never going to be perfect, but it beats sticking ones head into the sand and pretending that there isn't a problem. Invasive species threaten wild ecosystems by outcompeting native fish and destroying natural habitat, what part of that don't people understand? No one wants the Govt to intervene, but what other option is available when people can't use common sense, and follow guidelines? Toss a 1K fine onto someone's ass and most folks start to think twice.
I think the fine is $50000 for importing banned animals. not sure what it is for having one but it will be more than $1000 and result in the animal being destroyed.
Theres two discussions on the topic of bans.
1) The discussion of fish that shouldnt be kept due to their size.
2) invasive species. I think most of us agree its necessary. ThoughOgertron3000 provided a pretty good example on why they are problematic.
Guy buys a koi in an area they are not banned all's good in the hood.... he moves to victoria and unknowingly is keeping a banned fish. Maybe theres legal consequences.
I think common sense can also be applied to understanding that two different conversations are taking place
That's right, trying to make an example of a ban that doesn't work. A 3 hour drive to buy a banned fish from another state isn't really effective. In this case the border between the states is a river so if you were stupid enough to let a koi go in it then as long as the koi swims north not South It wouldn't enter forbidden territory!
I agree with the above, and will give a couple of examples (although not all aquarium related).
I grew up on the shores of Lke Michigan.
When I was a kid, there were smelt, sculpin, bass, walleye and many other species in the near shore areas.
Now, just about the only thing you find are Asian Gobies, and zebra/Quagga mussels, probably from the bilge of international ships.
The perch fishing industry that was once booming, has totally collapsed, and the lake is heading toward a mono-culture system, at least near shore.
Another example
In the 1960s a Dr wanted a pond on the shore of Lake Gatun Panama, near where I live now, with Peacock bass.
During the rainy season those 6 P-bass (of course) escaped, now.....
most of the endemic cichlids are gone from the lake, eaten by the P-bass.
All it takes are a couple to ruin the entire system.
Common carp have destroyed native populations of fish in all rivers here. They are a huge problem that I don't think,can be solved It's too cold in winter for cichlids or plecos to survive here but up north I can only imagine what some convicts released into a lake could do.Also Indian mynah birds, rabbits, cane toads and many more have made an impact so do agree bans are necessary to avoid situations like you describe. I don't like the inconsistency when it comes to aquarium fish but obviously have a vested interest in it. It seems strange I can buy a reed devil but not Trimacs or comet goldfish but not koi etc.