Chain diatom
Chaetoceros spp
Chaetoceros spp.
Video
About this species
Species identity
Chaetoceros spp. are microscopic diatoms, typically a few to tens of micrometers in size, that live as part of the phytoplankton. They inhabit sunlit surface waters and often form long chains of cells. Each cell has thin, hair-like spines made of silica that help the chains remain suspended and influence how they interact with the surrounding water.
Where it lives
Chaetoceros species are found in oceans worldwide and are among the most widespread groups of marine phytoplankton. They occur in polar, temperate, and tropical regions, from coastal zones to open ocean waters.
They are most abundant in sunlit surface layers where light supports photosynthesis.
These diatoms often dominate in nutrient-rich environments, such as areas influenced by upwelling, river input, or seasonal mixing.
Role in the ecosystem
Chain diatom helps explain how marine food webs function through its ecological role, habitat use, and connection to broader ecosystem change.
Scientific reference
Citation
Ocean Literacy Connections
This resource can be explored through Ocean biodiversity, Ocean makes life possible and Ocean and climate.
- How do ocean habitats support so many forms of life and interaction?
- How does the ocean help make Earth habitable?
- What ocean processes help shape climate and weather patterns?
Explore and connect
Open the primary producer view and compare this species with related marine life.
