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John Huisman

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Micro images

Image title:

A heavy load: Achnanthes brevipes

Image description:

Achnanthes brevipes is an epiphytic diatom that forms short chains and is very common in the Swan Estuary, Perth, Western Australia. The photograph shows dense clusters growing on the green alga Chaetomorpha and was taken on a Nikon 80i microscope, using darkfield illumination, and a 20x objective. Several images were taken at different focal planes and then stacked in Adobe Photoshop. For scale the frame width is approximately 600 µm.