Chelidonura varians - shipping stresses?

May 28, 2003
From: James Urquhart

I recently purchased 2 Chelidonura varians or whatever they are calling "velvet seaslugs". They were shipped in the same bag and the water seemed somewhat tinted black. I followed a slow acclimation procedure and noticed NO movement on either slug. Both were very flat and seemingly devoid of blue strips.... Put them in the tank and subsequently one went drifting behind the rocks, the other went drifting off behind some other rocks...

Any words of wisdom with these? I was told by someone else I asked on another board that they could potentially release toxins when stressed and that shipping 2 together is not good...

Thanks in advance for you help.
James.

james.urquhart@nautica.com

Urquhart, J., 2003 (May 28) Chelidonura varians - shipping stresses?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10051

Dear James,
Sounds like they were dead on arrival - which I am afraid is not surprising. The water was apparently tinted black from the pigment released from the skin when the body began to break down. What killed these animals was humans not toxins released due to stress. Sea Slugs are very sensitive to changes in water chemistry, and to heat and cold etc. To ship them in small plastic bags around the world is irresponsible. To trade in them when we know that 99% will die from physical shock or starvation is criminal. While I have some sympathy for the poor villagers in 3rd world countries who wreck their environment to collect specimens to sell to relatively rich aquarium owners in the developed world, I have little sympathy for the dealers who make huge profits as middlemen. The only way to stop the trade is to encourage aquarium owners like you from buying this stuff. If you don't buy it the middlemen can't make a profit. Even the collection of such apparently harmless stuff as 'live rock' is causing huge damage to tropical shores. After all it is the very stuff which makes the reefs and the rocky shores and provides the home for countless plants and animals. How many thousand die each time a 'live rock' is hammered or dynamited off the shore. There is nothing wrong with keeping an aquarium, but try an restrict your plants and animals do those that are bred in captivity. Your aquarium should remind you of the beauty you can find in the sea, not be the last surviving remnant of a beauty that can no longer be found in the sea.
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (May 28). Comment on Chelidonura varians - shipping stresses? by James Urquhart. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10051

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