Close-up of a fiber with brightly colored pathogens beside it
Microplastics in Seawater May Harbor Parasites
Laboratory experiments find that Toxoplasma, Cryptosporidium, and Giardia can congregate on microplastic beads and fibers, suggesting they might make their way into and around the world’s oceans by hitching rides on tiny bits of trash.
ABOVE: University of California, Davis
Microplastics in Seawater May Harbor Parasites
Microplastics in Seawater May Harbor Parasites

Laboratory experiments find that Toxoplasma, Cryptosporidium, and Giardia can congregate on microplastic beads and fibers, suggesting they might make their way into and around the world’s oceans by hitching rides on tiny bits of trash.

Laboratory experiments find that Toxoplasma, Cryptosporidium, and Giardia can congregate on microplastic beads and fibers, suggesting they might make their way into and around the world’s oceans by hitching rides on tiny bits of trash.

ABOVE: University of California, Davis

marine microbes

Fish in a big blue aquarium
Microbes Responsible for Stealing Aquarium Medicine
Amanda Heidt | Feb 1, 2022
Researchers discover that bacteria break down medicinal compounds for their nitrogen, solving a mystery that has vexed aquatic veterinarians for years.
A boat, the Tara, sailing past an island in Patagonia, Chile
Sailing the Seas in Search of Microbes
Shawna Williams | Jun 1, 2021
Projects aimed at collecting big data about the ocean’s tiniest life forms continue to expand our view of the seas.
A scanning electron micrograph of the picozoan Picomonas judraskeda
Picozoans Are Algae After All: Study
Christie Wilcox | May 6, 2021
Phylogenomics data place the enigmatic plankton in the middle of the algal family tree, despite their apparent lack of plastids—an organelle characteristic of all other algae.
The sponge Mycale grandis overgrowing coral on the reef in K?ne?ohe Bay
Image of the Day: Cooperative Sponges
Nicoletta Lanese | Aug 15, 2019
Mycale grandis teams up with microbes housed inside it to gather nutrients.
dinoflagellate marine microbe microbes ocean cyanobacteria symbiotic symbiont symbionts
Image of the Day: Stowaway
Chia-Yi Hou | Jun 26, 2019
Previously undetected cyanobacteria are symbionts of dinoflagellates.
A New Role for Marine Archaea
Catherine Offord | Jul 1, 2016
Researchers discover acetogenesis in archaea, suggesting an important role for these little-studied organisms in generating organic carbon below the seafloor.