Table 2. Nutrient limitation classifications (N.L.C.) and ambiguity of classification for total phytoplankton biomass and specific algal taxa (Andersen et al. 2005).

Group	N.L.C.	Null	XN	N1	XP	P1	XC	C1
Total	C1	0	0	22.5	0	3.3	1.1	73.1
phytoplankton	(N1)	(0)	(0)	(93.3)	(0)	(0.2)	(0.2)	(6.3)
Diatoms	P1	0	0	1.3	0	51.4	1.6	45.7
	(XC)	(0)	(0)	(20.0)	(0)	(9.9)	(45.5)	(24.6)
Cryptophytes	N1	0	0	54.2	0	18.7	11.5	15.6
	(N1)	(0)	(0)	(64.2)	(0)	(5.2)	(25.3)	(5.3)
Chlorophytes	C1	0	0	31.9	0	0	8.5	59.6
	(N1)	(0)	(0)	(9.7)	(0)	(3.2)	(7.9)	(79.2)
Cyanobacteria	N1	0	0	38.4	0	30.6	12.1	18.9
	(N1)	(0)	(0)	(40.5)	(0)	(29.5)	(9.5)	(20.5)
Microcystis sp.	P1	0	0	1.4	0	87.7	0.3	10.6
	(P1)	(0)	(12.0)	(2.8)	(0)	(69.1)	(0.5)	(15.6)
Anabaena spp.	–	7.8	35.7	18.1	11.5	28.0	1.5	13.7
	(–)	(11.3)	(64.0)	(7.7)	(0)	(5.7)	(9.2)	(2.1)

Total phytoplankton biomass as spectrophotometric Chl a. Ambiguity of the classification of the nutrient limitation status is shown by the frequency (%) of different classifications from 1000 bootstrapped data sets. Values in parentheses are results excluding data from the period following the 27 July 2013 rain event. A – indicates that the null model was chosen in greater than 5% of boot-strapped cases.