COSEE Ocean Systems: News
Imbalanced nutrient recycling in a warmer ocean driven by differential response of extracellular enzymatic activities
Description: Ocean oligotrophication concurrent with warming weakens the capacity of marine primary producers to support marine food webs and act as a CO2 sink, and is believed to result from reduced nutrient inputs associated to the stabilization of the thermocline. However, nutrient supply in the oligotrophic ocean is largely dependent on the recycling of organic matter. This involves hydrolytic processes catalyzed by extracellular enzymes released by bacteria, which temperature dependence has not yet been evaluated. Here, scientists report a global assessment of the temperature-sensitivity which enable the uptake by bacteria of substrates rich in carbon, nitrogen, and phosphorus, respectively. [Source: Global Change Biology]
Availability: Summary
Source: Global Change Biology
Publish Date: 10/1/2017
Reading Level: Expert
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