Table 4. Number of positive test results and bacteria MPN-index at 25 depth during POLARSTERN cruise ANT-VIII/6

Number of positive test results in low-nutrient (LN) broth using 5 Erlenmeyer flasks, or in high-nutrient (HN) broth using 5 test tubes per dilution, and the MPN-index per 1 ml for combination of dilutions 0.1, 0.01, 0.001 ml, or 0.01, 0.001, and 0.0001 ml.