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In Atlantic Water, over the depth of the mixed layer, bacterial production rate averaged 6.6 times the average in Arctic Water and 2.3 times the average in the polar front regions. Below 30 m depth, bacterial production rates were generally higher in the Arctic Water than in the Atlantic Water. Moreover, when production rates of bacteria were compared according to temperature, the rates in Arctic Water were systematically higher than the rates in Atlantic Water. This difference implies that the heterotrophic bacteria from the Arctic have adapted towards higher growth efficiency than the bacteria in Atlantic Water. [Source: Journal of Marine Systems]
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