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@DrPlanktonguy@ecoevo.social
2025-08-02 14:00:34

Weekend #Plankton Factoid 🦠🦐
Plankton have #parasites, just like any other organism, but in some cases, this leads to improved feeding conditions. #Daphnia zooplankton must often feed on freshwater cy…

image/jpeg microscope photo of long strands of brown-red algae with puffy globular growths on it. Planktothrix rubescens with chytrid infection. https://www.igb-berlin.de/en/project/integrating-fungal-parasites-plankton-ecology
image/jpeg microscope photograph of two transparent crustacean zooplankton with bright green guts are shown top and bottom. Photo of Daphnia dentifera from Meghan Duffy.
@DrPlanktonguy@ecoevo.social
2025-08-30 13:45:39

Weekend #Plankton Factoid 🦠🦐
While algal #blooms are often associated with summer, they can occur in any season. SE #Australia is experiencing a prolonged bloom of Karenia mikimotoi (same genus as Flor…

image/jpeg two microscope images of a golden brown coloured algae cell on the left and a black and white SEM image on the right showing the distinct grooves, one lateral, on vertical where the flagella are located. Images from NOAA and WHOI.
image/jpeg photo of a person on a beach which has extensive piles of brownish white foam. Photo from ABC Caroline Horn. https://www.abc.net.au/news/2025-03-17/waitpinga-beach-foam-investigation/105060888
@DrPlanktonguy@ecoevo.social
2025-08-23 14:00:45

Weekend #Plankton Factoid 🦠🦐
Last week, I mentioned a ciliate that can cause red tide #blooms. Mesodinium rubrum is an example of a unicellular organism that can both injest food and photosynthesize. Its main prey are cryptomonad

image/jpeg a graphic drawing of Mesodinium rubrum of a round organism with extended spines consuming a Geminigera cryophila cell that has two flagella. Text reads "Steals prey nucleus (kleptokaryon) and other organelles. Final diagram shows organelles inside the cell. From Johnson et al. 2023. https://doi.org/10.1016/j.cub.2023.01.027
image/jpeg a microscope photograph of an oblong orange - brown cell with distinctive radiating spines from the sides. Mesodinium rubrum from NOAA, public domain.