MicrobeHunter.com Microscopy Forum

Hello.
I found these beautiful specimens in some abandoned fishing nets on the seashore. I put them under the Mitutoyo fs100 and with MplanApos 10x and 20x. Too bad my camera is a simple cell phone, but the images directly from the eyepiece are very satisfying.

Super cool pictures!! I've always wanted to see hydras, are they exclusive to saltwater or are there freshwater species too? Also, are you using a filter to make the backdrop purple? Looks great

~ Tenshi

Tabkiel.
Thank you for your kind comment.
You can also find them in Lakes and Rivers. They are very interesting creatures.
The technique I use is Polarized Light.

These are quite interesting I agree, its amazing that you can find them in freshwater too.

Did you use a compensator to get the magenta background?

Wes wrote: ↑

Tue Sep 15, 2020 4:39 pm

These are quite interesting I agree, its amazing that you can find them in freshwater too.

Did you use a compensator to get the magenta background?

Wes.
Hydrozoa in general can be found in different water bodies.
This class in particular, only in the sea.

"Obelia, genus of invertebrate marine animals of the class Hydrozoa (phylum Cnidaria). The genus, widely distributed in all the oceans, is represented by many species. The animal begins life as a polyp—a tentacled, stalklike form resembling a small sea anemone attached to the ocean bottom or some other solid surface. The polyp asexually produces medusae, or jellyfish. Obelia medusae release sperm or eggs into the surrounding water, and the resulting ciliated larva eventually metamorphoses to produce a branching colony of polyps."

In connection with this explanation I found in the same sample taking ,what looks like a young jellyfish, still adjacent to the polyps

https://youtu.be/sLUB3Gfx2R0