Table 1. r ² values for the relationships between nitrite oxidation rates, ammonia oxidation rates, NOB abundance and dissolved nitrite.

Station	Nitrite oxidation vs nitrite	Nitrite oxidation vs ammonia oxidation	Nitrite oxidation vs Nitrospina
1	0.021	0.401*	0.126
2	0.443*	0.038 (negative)	0.135
3	0.013	0.003	0.881*
4	0.003	0.001	0.004 (negative)
5	0.443*	0.790*	0.085 (negative)
6	0.027	0.731*	0.647*
Overall	0.344*	0.000	0.225*

*P<0.05.