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Hydra

 
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Robert Berdan



Joined: 18 Oct 2017
Posts: 143
Location: Calgary
PostPosted: Fri Aug 03, 2018 12:09 pm    Post subject: Hydra Reply with quote
Hi - I have been photographing everything I can that lives in ponds and I found two types of hydra. I have photographed the hydra feeding on copepods and Daphnia - though they seem to leave Ostracods alone. Also included some high mag photos of the 4 types of cnidoblasts.

I used a combination of low power to capture the entire Hydra using 2.5, 5X objectives and high power 40X, 63X objectives with DIC to capture the cnidoblasts. Below are some pictures - if you are interested in learning more about Hydra - see the article I just posted. http://www.canadiannaturephotographer.com/hydra.html - I have included links to PDFs of various research papers and online books.

Pictures:
1. Green Hydra Hydra viridissima
2. Brown Hydra - Darkfield Microscopy
3. Brown Hydra - tentacle showing cnidoblasts
4. DIC microscopy with 63X objective of 4 types of cnidoblasts
5. Hydra feeding on Daphnia Darkfield microscopy
6. Hydra with a copepod inside












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vasselle



Joined: 05 Jan 2014
Posts: 1497
Location: France
PostPosted: Fri Aug 03, 2018 12:12 pm    Post subject: Reply with quote
Bonjour
Superbes images
Cordialement seb
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Microscope Leitz Laborlux K
Boitier EOS 1200d
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Troels



Joined: 15 Feb 2016
Posts: 463
Location: Denmark, Engesvang
PostPosted: Fri Aug 03, 2018 12:13 pm    Post subject: Reply with quote
Excellent and very interesting.
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Troels Holm, biologist (retired), environmentalist, amateur photographer.
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Jacek



Joined: 02 Oct 2011
Posts: 5325
Location: Poland
PostPosted: Fri Aug 03, 2018 9:41 pm    Post subject: Reply with quote
Super !
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https://photos.app.goo.gl/MV9IynUtBdaKkVj53
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Sumguy01



Joined: 28 Jan 2013
Posts: 1351
Location: Ketchikan Alaska USA
PostPosted: Sat Aug 04, 2018 11:20 am    Post subject: Reply with quote
Very nice.
Thanks for sharing.
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carlos.uruguay



Joined: 23 Feb 2012
Posts: 5224
Location: Uruguay - Montevideo - America del Sur
PostPosted: Thu Aug 09, 2018 10:48 am    Post subject: Reply with quote
Super!!!!
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