Tuesday 17 March 2015

Microscopic Pond Life - A Closer Look

From time to time I try different video cameras to find the best microscope / camera combination. All the cameras show some aberrations at low lighting levels. Can't quite make my mind up whether this is on the IR filter which they all have or some aspect of the sensor which only shows at low light levels.

This experiment was with a Siemens camera which is good quality but unfortunately shows a lot of aberrations. I have tried different high magnifications object lenses and that makes no difference. 

This time I managed to obtain some closer views of the life in a bit of algae taken from the pond waterfall:



Once again I haven't managed to identify the various forms of life.

8 comments:

  1. Wonderful! I think the brownish, round organisms might be dinoflagellates. Looks like the alga Scenedesmus is in there too...

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    Replies
    1. Many thanks for the IDs Phil. That helps a lot. Plenty of the alga in the sample.

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  2. I can't help but it is great watching the one at 42s eating.

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  3. Replies
    1. SDT: They do seem to spend a lot of time bumping into each other.

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  4. little globs go round and round. makes you wonder what we ingest with our food and drink every day. :)

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    Replies
    1. TWG: Hopefully our food and tap water is suitably purified but not so for many in the 3rd world, especially where they get water from rivers and streams.

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Thank you for visiting. Hope you enjoyed the pictures. Any comment, or correction to any information or identification I get wrong, is most welcome. John

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