Winter Dinoflagellates, my first encounters.

About the shape and function of different specimens
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charlie g
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Winter Dinoflagellates, my first encounters.

#1 Post by charlie g » Tue May 03, 2022 5:58 am

Hi all, happy earth-day, happy Easter 2022. This 2/22 winter hike for microscopy specimens, good doggie and I of course found frozen solid tree-stump waters...so no collection at this collection site..by default...I elected to collect a water sample from our artificial pond.

This 38 ft x18 ft wide pond ( a mesocosm) has open water only at the 10 ft depth deep end, due aerator constant churning, the rest of this midwinter pond is covered by approx. 3 inches of surface ice ( 2.53 cm per inch).

Wonderfully, and by chance ( I usually avoid deep waters in full winter season) this my first microscopal encounter with fresh water dinoflagellates, please enjoy these winter flagellates.
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charlie g
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Re: Winter Dinoflagellates, my first encounters.

#2 Post by charlie g » Tue May 03, 2022 6:19 am

These winter dinoflagellates are a first time encounter for me. Please understand that freshwater dinoflagellates are poorly understood as nobody has done the field work effort to surrvey north american freshwaters for dinoflagellate organisms.
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charlie g
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Re: Winter Dinoflagellates, my first encounters.

#3 Post by charlie g » Tue May 03, 2022 6:28 am

These charming flagellates constantly tumbled as they spiral swam about.
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charlie g
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Re: Winter Dinoflagellates, my first encounters.

#4 Post by charlie g » Tue May 03, 2022 6:52 am

The colonial flagellate : Genus Dinobryon also graced my wet mount slides from this winter microscopy collection hike. Please enjoy, please all be safe and well. charlie guevara/ finger lakes, US
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ScienceMatters
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Re: Winter Dinoflagellates, my first encounters.

#5 Post by ScienceMatters » Thu May 05, 2022 4:50 am

Great finds! Hadn’t seen those dinoflagellates before, and love the colonial flagellates!

charlie g
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Re: Winter Dinoflagellates, my first encounters.

#6 Post by charlie g » Thu May 05, 2022 5:00 am

Thanks for looking. 'sci-guy'. Our north-hemisphere / North America has so many dynoflagellates to be encountered/ to be documented and described. All the best in your microscopy.

apochronaut
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Re: Winter Dinoflagellates, my first encounters.

#7 Post by apochronaut » Thu May 05, 2022 11:46 am

Those are always wonderful. I have mused sometimes whether they are responsible for the development of eyes.

Javier
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Re: Winter Dinoflagellates, my first encounters.

#8 Post by Javier » Thu May 05, 2022 6:58 pm

This is great, Charlie. Thanks for sharing!

charlie g
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Re: Winter Dinoflagellates, my first encounters.

#9 Post by charlie g » Fri May 06, 2022 4:48 pm

Hi, Javier, apo, and all. Wow, apochronaut...your opine regards to 'eyes', quite precient! Our mammalian eyes sensors (rods and cones) are indeed modified cilium structures. Of course with a legacy of cellular 'support systems'.

In protists ( light seeking flagellates, etc. protozoa, or light intolerant protozoans...or in 'picky/ choosey '/'goldilocks: 'just right level and quality of light insolation'...cilia/ flagella systems evolved to coordinate with systems of pigments which can be moved about.. to either shield the light receptors/ protect the light receptors...all the while orienting the organism . As we all know..intracellular microtubular scaffolds dynamically form/ dynamically disassemble , as needs for literally movement of organelles ( be it chloroplasts, pigment shields for chloroplasts, all sorts of 'basic housekeeping duties' for cell level of getting on with the work of living )...as needs to shuffle organelles about within the cell ( eukaryotic cells mind you, another pattern/ another strategy occurrs in prokaryote cells, and viruses...err..where are prions in this dense community of players?!) .

Delightfully all this drama plays out for we microscopists with light stands, when we enjoy lightmicroscopy observations at our benches. all the best, charlie g/finger lakes.US
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