“…Parameters affecting bacterial production when oil is present can also include specific capacities of bacterial taxa to degrade various hydrocarbon species (Head et al, 2006;Vergeynst et al, 2019;Bacosa et al, 2020a), microbial production of biosurfactants that facilitate bioavailability of petroleum molecules (Matvyeyeva et al, 2014), the relative abundance of nitrate-reducers among microbial community members (Melkonian et al, 2021), and the trophic state of the seawater upon oil introduction (Haule and Freda, 2021). Water temperature, nutrient availability, solar exposure, and oxygen affect microbial activity (Scofield et al, 2015;Hutchins and Fu, 2017;Cavicchioli et al, 2019;Robinson, 2019) altering the microbial degradation of crude oil components (Atlas and Hazen, 2011;Gregson et al, 2021).…”