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magazine / apr13

April 2013 issue

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Actually Pattie, although it's easy to miss, I took great care to include the information about anaesthetization, even re-ing it after an early copy-edit inadvertently removed it. Here's the line: "... frogs the size of puppies are soon accumulating in the anaesthetic solution sloshing in the buckets (sedated frogs are later frozen and then either composted or distributed to university research projects in neuroscience, parasitology and genetics)."

Submitted by Leslie on Monday, April 1, 2013

Laurie, bullfrog eggs are not easy to find. When first laid, they appear like an oil sheen with black specks on the surface of the water. Within 24 hours or so, the egg mass sinks below the surface, where it is virtually undetectable.

Bob, good work with the fishing rod! Here in the Highlands, great blue herons do eat the juvenile frogs so do otters and garter snakes. They help, but a single mating can result in thousands of juveniles no way the herons, otters and snakes can keep up with them. We aim to prevent breeding on the lakes we and other Highlands volunteers patrol.

And to anybody interested: the article has a lot of great information, but neglected to mention one important point. The bucket into which we the frogs we catch contains water treated with clove oil, a natural anaesthetic. We don't want those frogs to suffer any longer than necessary.

It's not the frogs' fault they're a problem. We have a responsibility to treat them as humanely as possible.

Submitted by Pattie Whitehouse on Tuesday, March 26, 2013

Somewhere I read that bullfrog eggs are much larger than other frog's eggs, and easily identifiable. So a control measure may be to scoop out the bullfrog egg clusters in the spring and destroy them before they hatch.

Submitted by Laurie Baldwin on Saturday, March 23, 2013

I loved your story on bull frogs. I tried using a spear and it was too slow. Found an 8 or 9 foot fishing rod with 2 to 3 feet of line and a fish hook on the end much more efficient (frogs can't let a fly go by them). Just stand back and lower the hook down in front of them and you will have a frog.
If you don't want to work at all bring in some blue herons, that is what I believe got the frogs out of Ontario. The more frogs, the more cranes will multiply. They eat 4 to 6 frogs twice a day, do the math. When the frogs disappear the cranes will disappear also. Can you forward this to whoever wants to get rid of the frogs.

Submitted by Bob Burtch on Friday, March 22, 2013

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