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Article Dans Une Revue Nature Communications Année : 2021

Marine snow morphology illuminates the evolution of phytoplankton blooms and determines their subsequent vertical export

Résumé

The organic carbon produced in the ocean's surface by phytoplankton is either passed through the food web or exported to the ocean interior as marine snow. The rate and efficiency of such vertical export strongly depend on the size, structure and shape of individual particles, but apart from size, other morphological properties are still not quantitatively monitored. With the growing number of in situ imaging technologies, there is now a great possibility to analyze the morphology of individual marine snow. Thus, automated methods for their classification are urgently needed. Consequently, here we present a simple, objective categorization method of marine snow into a few ecologically meaningful functional morphotypes using field data from successive phases of the Arctic phytoplankton bloom. The proposed approach is a promising tool for future studies aiming to integrate the diversity, composition and morphology of marine snow into our understanding of the biological carbon pump.
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Origine : Publication financée par une institution

Dates et versions

hal-03230967 , version 1 (20-05-2021)

Identifiants

Citer

Emilia Trudnowska, Léo Lacour, Mathieu Ardyna, Andreas Rogge, Jean Olivier Irisson, et al.. Marine snow morphology illuminates the evolution of phytoplankton blooms and determines their subsequent vertical export. Nature Communications, 2021, 12 (1), pp.2816. ⟨10.1038/s41467-021-22994-4⟩. ⟨hal-03230967⟩
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