Ocean nutrient ratios shift, challenging the long-standing Redfield Ratio model

Ocean nutrient ratios shift, challenging the long-standing Redfield Ratio model

A new study published in Nature Geoscience has revealed that the global ocean's chemical makeup is undergoing a transformation, with key nutrient ratios critical to marine life shifting away from the long-accepted Redfield Ratio over the past decades.

Total alkalinity measurements in small samples: methods based on CO2 equilibration and spectrophotometric pH - Ocean Acidification

Highlights: Abstract Background: Total alkalinity (AT) is a fundamental parameter in understanding the oceanic cycling of carbon dioxide (CO2). Measurements of the AT of natural waters are typically obtained through single- or multi-step titrations using a strong acid, with the endpoint pH determined via potentiometry or spectrophotometry. Conventional AT determinations are labor-intensive and require precise knowledge of […] The post Total alka…