18 August 2022 3 5K Report

Hello everyone.

Does anyone have comprehensive references (review articles, books, data set/bank) on Vitamin B12 (cobalamin) levels or concentrations in aquatic ecosystems (lakes, ocean, coastal and marine, sea, etc.)? I collected papers and articles for a complete study, however, they only published data from their lab investigations.

Thank you in advance.

Regards,

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