Would you believe I found #Microcystis in the top layer of #sediment at 17 mtr depth in lake #Haarlemmermeersebos / NL
#cyanobacteria #citizenscience #microscopy water temperature 4,5°C

Some people see faces in clouds. I see them in #cyanobacteria. Even #Microcystis can roll their eyes😳
#microscopy #plankton

My buddy with DPV.

An overview on clay boulders at the bottom of the lake.

Faint view of the sailboat wreck lying at 5-7 mtr depth. Seen from the surface.

A Microcystis colony. Cyanobacteria

Dutch waters are known for its bad visibility. Well in comparison with tropical waters thats true. 1-4 mtr is common. Yesterday I measured a #Secchi depth of 13,8 mtr. I could even see the wreck at 5-7 depth from the surface. There are still #Microcystis colonies present at 5°C. #cyanobacteria

Microcystis is a bluegreen algae or better said, cyanobacteria. It produces oxygen, but can also become toxic. A colony is formed and held together in a mucilage layer. The open net-like structure of this colony is one of the many morphological appearences #Microcystis can have.

Different structure same colony of Microcystis.

A Microcystis colony of about 1 cm in length.

#cyanobacteria #Microcystis is almost #art in the form of natural #pointillism It's structure is open and beautiful. These colonies can be big. Sometimes 1 cm! #plankton #bacteria #freshwater #microscopy

#Microcystis aeruginosa is actually beautiful under a #microscope. Especially when stained with indian ink, when the #mucilage (white edges) becomes visible. Colony is about 3-3,5 mm in size.#plankton is fun! #algae #microscopy #photopgraphy #freshwater #citizenscience

#Blauwalgen die ik ving zweefden nog in de waterkolom door wind en stroming, maar wat gebeurt er als die wegvallen? De grotere koloniën gaan drijven en de kleinere blijven zweven. #citizenscience #plankton #cyanobacteria #microcystis

youtu.be/yGARtARBigM?...
Flow in an isolated lake. It's partially caused by an active mixing system amplified by a strong wind. Night #scuba #diving. This is the front deck of a small sailboat scuttled in 2017 functioning as an artificial reef. The particles floating by are #Microcystis colonies.

How about this #Microcystis cell disguised as a Ninja turtle.😁

#freshwater #plankton is perhaps not as beautiful as marine plankton, but just as important. It is teeming with nauplius and rotifers. There is even a flow in the jar. On the bottom, mainly #Aulacoseira sp (bloom ongoing) and little bubbles of oxygen. Top #Microcystis #citizenscience

Take a closer look at this #rotifer Chomping jaws with teeth #mastax and juggling a small #Microcystis colony. Also two eggs attached.
#freshwater #protistsonsky #microscopy #plankton #zooplankton

One drop of #plankton taken with a planktonnet today. #freshwater #microscopy #eudorina #volvox #rotifers #Microcystis

How does #cyanobacteria #Microcystis aeruginosa keeps cells together in an open structure #mucilage #polysaccharides is pretty strong! #microscopy #bacteria #freshwater

Isolated a giant #Microcystis aeruginosa colony yesterday during snorkeling. It's pretty sturdy as well as it survived a car ride home and the narrow opening of my pipet. #cyanobacteria #freshwater #Microscopy #citizenscience
#bacteria #snorkeling

#Microcystis on the left with mucilage forming a barrier against active #bacteria on the right. Indian ink staining. #microscopy #freshwater #cyanobacteria #plankton

Amazing keynote talk by Elke Dittmann @dittmannelke.bsky.social "Dissecting the Role of #Microcystin on the Carbon Concentrating Mechanism of #Microcystis aeruginosa".

First report of potentially #microcystin producing #Microcystis in the Dominican Republic
www.sciencedirect.com/science/arti... #OpenAccess #MicroSky #IDSky

KEYNOTE & INVITED SPEAKERS – ICTC13 | 13th International Conference on Toxic Cyano Bacteria Keynote Speech: “Dissecting the Role of Microcystin on the Carbon Concentrating Mechanism of Microcystis aeruginosa”

Elke Dittmann @dittmannelke.bsky.social will be a keynote speaker in #ICTC13, "Dissecting the role of #microcystin on the carbon concentrating mechanism of #Microcystis aeruginosa. #cyanobacteria.
Check out our invited/keynote speakers: ictc13.gr/invited-spea...

Cyanobacteria diversity challenges 'one-size-fits-all' algal bloom solutions When populations of tiny aquatic organisms called cyanobacteria (formerly known as blue-green algae) explode, their toxic overgrowth can threaten human drinking water and cause wildlife deaths in even...

#Cyanobacteria #diversity challenges 'one-size-fits-all' #algal bloom solutions.

#pollution #HAB #Microcystis #climate_warming

phys.org/news/2025-02...

Background of magenta circles packed into one layer. In the middle of the image, we see yellow filaments made up of rectangular cells surrounding five large green cells.

Happy #FluorescentFriday! Autofluorescence of cells embedded within a #Microcystis aggregate.

Taken by Tingting Gu at the Samuel Roberts Noble Microscopy Laboratory at OU.