Insights into global diatom distribution and diversity in the world’s ocean Article Swipe

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diatom oceanography biology phytoplankton plankton photic zone mesopelagic zone ecology chaetoceros pelagic zone geology nutrient

Shruti Malviya , Eleonora Scalco , Stéphane Audic , Flora Vincent , Alaguraj Veluchamy , Julie Poulain , Patrick Wincker , Daniele Iudicone , Colomban de Vargas , Lucie Bittner , Adriana Zingone , Chris Bowler ·

YOU? · · 2016 · Open Access · · DOI: https://doi.org/10.1073/pnas.1509523113 · OA: W2290413657

Significance Diatoms, considered one of the most diverse and ecologically important phytoplanktonic groups, contribute around 20% of global primary productivity. They are particularly abundant in nutrient-rich coastal ecosystems and at high latitudes. Here, we have explored the dataset generated by Tara Oceans from a wide range of oceanic regions to characterize diatom diversity patterns on a global scale. We confirm the dominance of diatoms as a major photosynthetic group and identify the most widespread and diverse genera. We also provide a new estimate of marine planktonic diatom diversity and a global view of their distribution in the world’s ocean.