Articles | Volume 22, issue 17
https://doi.org/10.5194/bg-22-4367-2025
https://doi.org/10.5194/bg-22-4367-2025
Research article
 | 
04 Sep 2025
Research article |  | 04 Sep 2025

The primacy of dissolved organic matter to aquatic light variability

Henry F. Houskeeper and Stanford B. Hooker

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Oceanic light has historically been modeled based on phytoplankton concentration, consistent with a grazing food chain. This study indicates that oceanic light variability is more closely linked to variability in dissolved organic matter. The result is consistent with advancing knowledge of the microbial loop, wherein dissolved compounds are important ecosystem drivers. The findings also indicate that accurate retrieval of dissolved organics is key to the remote sensing of phytoplankton.
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