The acidification and warming of seawater have several impacts on marine organisms, including over microorganisms. The influence of acidification and warming of seawater on biofilms grown on API 5L steel surfaces was evaluated by sequencing the 16S ribosomal gene. For this, three microcosms were designed, the first simulating the natural marine environment (MCC), the second with a decrease in pH from 8.1 to 7.9, and an increase in temperature by 2 °C (MMS), and the third with pH in around 7.7 and an increase in temperature of 4 °C (MES). The results showed that MCC was dominated by the Gammaproteobacteria class, mainly members of the Alteromonadales Order. The second most abundant group was Alphaproteobacteria, with a predominance of Rhodobacterales and Oceanospirillales. In the MMS system there was a balance between representatives of the Gammaproteobacteria and Alphaproteobacteria classes. In MES there was an inversion in the representations of the most prevalent classes previously described in MCC. In this condition, there was a predominance of members of the Alphaproteobacteria Class, in contrast to the decrease in the abundance of Gammaproteobacteria members. These results suggest that possible future climate changes may influence the dynamics of the biofouling process in surface metals.

海水的酸化和变暖对海洋生物有多种影响，包括对微生物的影响。通过对 16S 核糖体基因进行测序，评估了海水酸化和变暖对 API 5L 钢表面上生长的生物膜的影响。为此，设计了三个缩影，第一个模拟自然海洋环境 (MCC)，第二个模拟 pH 从 8.1 降低到 7.9，温度升高 2 °C (MMS)，第三个模拟 pH 在约 7.7，温度升高 4°C (MES)。结果表明，MCC 以Gammaproteobacteria类为主，主要是Alteromonadales Order 的成员。第二丰富的组是Alphaproteobacteria , 占优势红杆菌目和海洋螺菌目。在 MMS 系统中，在Gammaproteobacteria和Alphaproteobacteria类别的代表之间存在平衡。在 MES 中，先前在 MCC 中描述的最流行类的表示形式存在倒置。在这种情况下，Alphaproteobacteria类的成员占优势，而Gammaproteobacteria成员的丰度下降。这些结果表明，未来可能的气候变化可能会影响表面金属生物​​污染过程的动态。