Table 1.

List with lake names, corresponding to the numbers in figure 1 and values of EV and SV. (Data sources: n.d., no data available; references (a) Federal Office for the Environment (FOEN; P. Liechti), (b) http://www.ise.cnr.it/limno/limno.htm, (c) BUWAL (2002), (d) Liechti (1994), (e) Osservatorio dei Laghi Lombardi (2005), (f) Ohlendorf (1998), (g) Elber et al. (2001), (h) Ludovisi et al. (2004), (i) Garibaldi et al. (1997), (j) Keller et al. (2002), (k) Keller (2003), (l) Ribi et al. (2001), (m) Kiefer (1987), (n) W. Steiner Nordostschweizerische Kraftwerke (NOK 2004, personal communication), and (o) field sampling June/July 2003, upper 20 m.)

corresponding no. (figure 1)	lake name	‘historic dataset’	total phosphorus load (PT, μg l−1)	maximal phosphorus load (PM, μg l−1)	years since PM (YE)	volume (VO; 106 m3)	maximum depth (DM; m)	surface area (SU; km2)	elevation (EL; m a.s.l.)	longitude (LO)	latitude (LA)	references
lakes north of the Alps
1	Ägerisee	X	10	23	29	353	83	7	724	8.618	47.127	a, d, k
2	Baldeggersee	X	52	517	28	173	66	5	463	8.258	47.207	a, c, d
3	Bielersee	X	13	140	33	1240	74	40	429	7.163	47.071	a, d
4	Brienzesee	X	3	25	22	5170	261	30	564	7.966	46.728	a, c, d
5	Greifensee	X	63	535	30	148	32	8	435	8.677	47.353	a, d, j
6	Hallwillersee	X	45	270	26	280	47	10	449	8.211	47.297	a, d
7	Klöntalersee		12	n.d.	n.d.	56	47	3	847	8.975	47.025	n, o
8	Lej da Champfèr		11	n.d.	n.d.	9	33	1	1791	9.806	46.469	f, o
9	Lej da S. Murezzan		43	n.d.	n.d.	20	44	1	1768	9.849	46.495	f
10	Lej da Segel		11	n.d.	n.d.	137	71	4	1797	9.732	46.418	f
11	Lej da Silvaplauna		13	n.d.	n.d.	127	77	3	1791	9.796	46.449	f
12	Lungenersee		10	n.d.	n.d.	66	68	2	689	8.162	46.804	l, o
13	Murtensee	X	27	155	23	550	46	23	429	7.105	46.940	a, d
14	Neuenburgersee	X	14	59	23	13 980	152	218	429	6.736	46.835	a, c, d
15	Pfäffikersee	X	22	379	32	59	35	3	537	8.783	47.352	a, d, g
16	Sarnersee	X	5	21	25	244	52	8	469	8.221	46.871	a, d
17	Sempachersee	X	34	165	19	639	87	14	504	8.158	47.143	a, c, d
18	Sihlsee		13	n.d.	n.d.	97	23	11	889	8.788	47.122	l, o
19	Thunersee	X	3	23	22	6470	217	48	558	7.673	46.713	a, d
20	Türlersee	X	15	157	28	6	22	0	643	8.503	47.270	g, l
21	Vierwaldstättersee	X	7	32	27	11 907	214	114	434	8.364	47.013	a, c, d
22	Wägitalersee		19	n.d.	n.d.	149	65	4	900	8.922	47.095	m, o
23	Walensee	X	2	30	27	3180	145	24	419	9.211	47.123	a, d
24	Zugersee	X	114	210	20	3174	198	38	413	8.483	47.161	a, d, l
25	Zürichsee, Obersee	X	14	41	31	467	48	20	406	8.845	47.203	a, d
26	Zürichsee, Untersee	X	25	130	33	3300	136	68	406	8.577	47.293	a, c, d
lakes south of the Alps
27	Lago di Alserio	X	26	280	18	7	8	1	260	9.217	45.785	e, h
28	Lago di Comabbio	X	72	200	28	17	8	4	243	8.692	46.763	b, e, h
29	Lago di Como	X	35	74	24	22 500	410	145	198	9.267	46.000	e, h
30	Lago d'Endine	X	17	35	19	12	9	2	334	9.938	45.778	e, h, i
31	Lago d'Idro		24	n.d.	n.d.	684	122	11	370	10.517	45.767	b, e, h
32	Lago d'Iseo	X	17	41	23	7600	251	61	186	10.067	45.733	e, h
33	Lago di Lugano	X	47	176	23	5860	288	49	271	8.971	45.994	d, e, h
34	Lago Maggiore	X	11	35	25	37 500	370	213	194	8.654	45.967	a, c, e, h
35	Lago di Mergozzo		1	n.d.	n.d.	83	73	2	194	8.466	45.956	b, h
36	Lago di Monate		5	n.d.	n.d.	45	34	3	266	8.664	45.786	e, h
37	Lago di Montorfano	X	8	15	4	2	7	0	397	9.138	45.783	e, h
38	Lago Moro		8	n.d.	n.d.	4	42	0	389	10.158	45.863	b, e, h
39	Lago d' Orta		4	n.d.	n.d.	1300	143	18	290	8.400	45.817	b, h
40	Lago di Pusiano	X	74	200	12	69	24	5	259	9.273	45.802	e, h
41	Lago del Segrino		12	n.d.	n.d.	1	9	0	374	9.267	45.829	b, h
42	Lago di Sirio		24	n.d.	n.d.	5	44	0	271	8.929	45.451	b, h
43	Lago di Varese	X	82	400	28	160	26	15	238	8.750	45.800	e, h