Monday 18 November 2013

Water Bear seen in shop !

Monday 18 November 2013
While a Yellow-breasted Bunting was being found on Blakeney Point today, we found our own very exciting record - a Water Bear or Moss Piglet - in a tiny sample of moss that we had immersed in spring water overnight. The Water Bears, or Tardigrades to give them their proper name, have been referred to as the "hardiest critters on earth" being able to withstand freezing down to -151 C and heated to 200 C , they can dehydrate to just 3% of water and don't need to eat for more than 30 years. They can withstand pressures six times that of the deepest ocean and have been sent to space, where they survived !

So we were elated when we managed to see one in our moss sample. Using a Stereo 3D microscope, on 40x we had our first Tardigrade sighting ! At less than half a millimeter long they are not easy to see,  translucent under a light microscope, and move surprisingly fast, but we managed quickly to capture an image using a mobile phone held up to the eyepiece tube. It's a pretty dreadful picture (below), due to our haste and excitement but our first and we shall be setting up a GX Cam to get better pictures. The hunt is on !
And here are some pictures taken by the North Carolina Museum of Sciences


No comments:

Post a Comment