Table 1.
Growth rates and doubling times for both species, Marinobacter hydrocarbonoclasticus (M. hydro) and Cobetia marina (C. mar), during the exponential growth phase using absorbance λ= 595 nm (Optical Density at λ = 595 nm (OD595)), where: ASWPH, artificial sea water peptone high; ASWPL, artificial sea water peptone low; ASW, artificial sea water; FASWPH, filtered artificial sea water peptone high; NSWPH, natural sea water peptone high; NSWPL, natural sea water peptone low; and NSW, natural sea water.
| Species | ASWPH | ASWPL | ASW | FASWPH | NSWPH | NSWPL | NSW | |
|---|---|---|---|---|---|---|---|---|
| M. hydro | Growth rate (h−1) | 0.115 ± 0.008 | 0.091 ± 0.006 | 0.022 ± 0.010 | 0.113 ± 0.007 | 0.109 ± 0.009 | 0.090 ± 0.002 | 0.013 ± 0.002 |
| Doubling time (h) | 6.03 ± 0.39 | 7.59 ± 0.52 | 35.66 ± 14.80 | 6.11 ± 0.36 | 6.35 ± 0.53 | 7.63 ± 0.22 | 53.38 ± 8.41 | |
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| C. mar | Growth rate (h−1) | 0.079 ± 0.004 | 0.072 ± 0.002 | 0.055 ± 0.006 | 0.075 ± 0.002 | 0.073 ± 0.002 | 0.075 ± 0.002 | 0.06 ± 0.010 |
| Doubling time (h) | 8.77 ± 0.47 | 9.54 ± 0.30 | 13.77 ± 2.25 | 9.21 ± 0.31 | 9.39 ± 0.30 | 9.15 ± 0.27 | 11.29 ± 2.51 | |