← Back to Species Directory
Species

Nordenskioeld’s diatom

Thalassiosira nordenskioeldii

Thalassiosira nordenskioeldii is a microscopic diatom, typically around 10–50 micrometers in diameter, that lives as part of the phytoplankton.

Ecoregions
Arctic OceanNorwegian Current
Ecoregion types
Polar & Subpolar
Trophic levels
Primary Producer

Video

About this species

Species identity

Thalassiosira nordenskioeldii is a microscopic diatom, typically around 10–50 micrometers in diameter, that lives as part of the phytoplankton. It occurs in cold, nutrient-rich waters and often forms chains or loose colonies of round cells. Its cell wall is made of glass-like material and has tiny patterns that protect the cell and help it move and stay suspended in the water.

Where it lives

Thalassiosira nordenskioeldii lives in cold and cool parts of the ocean, especially near the Arctic. It is often found near coasts, in fjords, and close to sea ice.

It lives near the surface where sunlight reaches the water. It grows best when there is enough light and nutrients, especially after winter.

In spring, it can grow in large numbers and become very common in cold seas.

Role in the ecosystem

Nordenskioeld’s diatom helps explain how marine food webs function through its ecological role, habitat use, and connection to broader ecosystem change.

Scientific reference

Citation

https://doi.org/10.1093/plankt/fbw030

Ocean Literacy Connections

This resource can be explored through Ocean biodiversity and Ocean makes life possible.

  • How do ocean habitats support so many forms of life and interaction?
  • How does the ocean help make Earth habitable?

Explore and connect

Open the primary producer view and compare this species with related marine life.