Can we stop the American crayfish invasion?

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Offline thedoc

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Can we stop the American crayfish invasion?
« on: 20/03/2012 16:34:17 »
Native white-clawed British crayfish are in trouble.  Weakened by a parasite, this endangered species is being driven out of waterways by the North American signal crayfish.  Richard Hollingham discovers more about this American invasion...
Read a transcript of the interview by clicking here

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« Last Edit: 20/03/2012 16:34:17 by _system »

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Offline Andrew K Fletcher

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Re: Can we stop the American crayfish invasion?
« Reply #1 on: 27/03/2012 15:55:34 »
Could we promote some excellent recipes for the signal crayfish, together with techniques for capturing them and how to distinguish them from our own species. We could then become their natural predators, maybe even start up a business that supplies the blighters to restaurants?
Science is continually evolving. Nothing is set in stone. Question everything and everyone. Always consider vested interests as a reason for miss-direction. But most of all explore and find answers that you are comfortable with

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Offline Bored chemist

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Re: Can we stop the American crayfish invasion?
« Reply #2 on: 27/03/2012 19:29:46 »
Could we promote some excellent recipes for the signal crayfish, together with techniques for capturing them and how to distinguish them from our own species. We could then become their natural predators, maybe even start up a business that supplies the blighters to restaurants?
They are quite easy to distinguish from our own species.  We live on land, have hair, fewer limbs etc.

However, apart from that bad joke, I have to say I agree. Eating them is probably a fairly good solution- the trouble is that it would be difficult to guarantee you got them all.
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Offline Mazurka

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Re: Can we stop the American crayfish invasion?
« Reply #3 on: 28/03/2012 16:48:42 »
Nice idea, although i don't think it would be terribly practical - or if we start with one species where does it stop?

Furthermore, it was eating them that got us into this problem in the first palce.  Signal Crayfish were more suited to farming (as they were less susceptible to crayfish plague) which is why they were delibnerately introduced in the first place - unlike the mitten crab - which is though to have migrated from China via ships ballast and as well as being able to tolerate really quite dirty water, whilst underminning river banks with its burrowing they will happily predate signal crayfish...