Some marine diatoms

In April 2026, Elizabeth Beston (The Plankton Project https://nbn.org.uk/biological-recording-scheme/the-plankton-project/) kindly sent me a plankton sample collected at Cromer Pier in North Norfolk. Fine sediment had also been washed into the sample.

A look inside the sample reveals many colonies of Bacillaria paxillifer in motion.

Isolated and cultured Bacillaria paxillifer.

Asterionellopsis glacialis Asterionellopsis glacialis

Lithodesmium undulatum Lithodesmium undulatum

Lithodesmium undulatum Lithodesmium undulatum

Ditylum brightwellii Ditylum brightwellii

Ditylum brightwellii Ditylum brightwellii

Rhizosolenia Rhizosolenia

Odontella sp. Odontella sp.

Odontella sp. Odontella sp.

Centric diatom (Coscinodiscus?) Centric diatom (Coscinodiscus?)