Blepharisma tardum (?)

[Ariel Qassis]

Hello,
Here is Blepharisma tardum, from the Yarkon estuary, Israel.
Inverted, open coverslip, 40x, NIC
Thanks for watching!

[Jürgen Boschert]

Hi Ariel,

what a stunning video,again.
Thanks for sharing.

[Ariel Qassis]

Danke Jürgen!

Hi Ariel,

what a stunning video,again.
Thanks for sharing.

[Spectrum]

Hi Ariel,
Perfect as always.
Do you have Information about the salinity of the Probe?
Is it brackish water or higher?
Greetings Holger

[Ariel Qassis]

Sure Holger.
the gradient was 0.17-0.7%. that one is from the 0.7%

Hi Ariel,
Perfect as always.
Do you have Information about the salinity of the Probe?
Is it brackish water or higher?
Greetings Holger

[Spectrum]

Thx.
So salinity is in the brackish range, more leaning to freshtwater.

Blepharisma species are really interesting in terms of the salinity they are living in.

There are species living in rain water filled leafs with very low concentrations, up to others inhabiting extremophile (hypersaline) conditions.
Greetings Holger

[limno]

Hello Ariel,
I doubt a bit , that that your excellent video really shows Blepharisma tardum (I miss the size), because KAHL describes  B. tardum as halobiontic ciliate.. By the attached pages and table you may check your determination. I hope, it will help. 
Shalom
Heinrich

[Ariel Qassis]

Hello Henry,
Thanks for the detailed explanation.
Yes, Im not sure about that ID, thats why I added (?).
In my ID I was refering to Carey's "Marine Interstitial Ciliates",
Im attaching the relevant sections.
Thanks again