Just over a year ago I had a stroke. It affected my speech and several times a day the nurse or therapist would check on my progress and have me repeat very specific phrases: “baseball”, “huckleberry”, “no ifs, ands, or buts about it”, “fifty-fifty”. Every time I said that last one, it made me think […]

Antarctic diatom growth in a light- and iron-limited environment

Phytoplankton are the primary producers in marine and freshwaters and key components of ecological food webs. Their growth is often shaped by the presence of important resources, such as light, nutrients (trace metals and macronutrients such as nitrogen and silica) and an organism’s optimal growth temperature. In certain regions of the ocean, phytoplankton productivity is […]

Introducing the Diatom Web Academy, first of its name (that I know of)!

I currently have the fun and exciting role of serving as chair of the Society for Freshwater Science’s Diatom Taxonomic Certification Committee. The biggest motivation for this group is to develop a program that helps federal and state resource managers in the US obtain diatom data that are accurate, consistent, and reliable for use in […]

Decade in Review

Since our last post we welcomed in a new year and a new decade, so we want to take the opportunity to reflect on some of the great diatom science from the 2010s. This month Nick Schulte, with input from the rest of the DOM editorial board, put into the spotlight a paper or project […]

Year in Review

December’s Diatom of the Month marks our 50th blog post! Thank you all for your continued support. This month we are reflecting on the past year and looking forward to the new one. Keep reading for data and thoughts on our annual readership and last month’s survey responses. At the end, we also invite you […]


November’s Diatom of the Month is you. Aka Diatoma readerii (Fig. 1). Figure 1. Diatoma readerii. In reality, blogger and co-editor Nick Schulte dressed as the diatom he wishes he could be (Chamaepinnularia cymatopleura). Note the white scale bar and plate-like, golden chloroplasts. This month we, the editorial board of DOM, want to ask you, […]

Nitzschia fenestralis

How do you define a new species of Nitzschia? An example from an Ethiopian crater lake Around 50 km south east of the hectic Addis Ababa (Ethiopia) is a group of maars – explosion crater lakes – surrounded by hotels on the lake edges and populated by people practicing water sports. Around 65 m below […]

Cyclotella paleo-ocellata

A palaeoecological tale of Cyclotella paleo-ocellata from Lake Kinneret.

Diatom blooms and their effects on human health

Humans have long benefited from algae in many ways; from breathing the oxygen released during photosynthesis or consuming algae and organisms that feed on algae, to using their components and extracts in everything from foods to fuels, medicines and cosmetics. However, as Paracelsus wisely said, “All things are poison, and nothing is without poison, the […]