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EcoTaxa is a web application dedicated to the visual exploration and the taxonomic annotation of images that illustrate the beauty of planktonic biodiversity.

As a visitor, you have free access to the specimens that have been already identified by taxonomist experts.

You can explore the database by navigating along the UniEuk taxonomic tree which aims at unifying taxonomic names and tree according to reliable and curated molecular phylogenies. It encompasses the whole Eukaryotic and Prokaryotic lineages (Viruses coming soon) that have been molecularly described. Then images can be filtered according to several sample criteria: geographic location, depth, date and time of sampling, and imaging instrument.

As a scientist, you can contribute to the richness of this image database and/or to the collaborative taxonomic annotation effort. Images are organised in projects which should be consistent in terms of sampling and imaging techniques. We provide tools to support the annotation of large image datasets by supervised machine learning prediction.

EcoTaxa is not responsible for the safety of the images and archived data even if the application managers make their best to secure the application and the hosted data.

People annotating images in the EcoTaxa application cannot claim for any retribution but they can download and use the results of their work. The application can be freely downloaded and installed for scientific utilization. It can be installed either on servers or individual Windows computers.

To download EcoTaxa and install the application, email

If you use EcoTaxa in your work, we would appreciate that you cite it as: Picheral M, Colin S, Irisson J-O. EcoTaxa, a tool for the taxonomic classification of images.

Software developed by Laurent Navarro (Altidev)