. 2005 Dec;71(12):8201–8206. doi: 10.1128/AEM.71.12.8201-8206.2005

TABLE 1.

Characteristics of the 15 lakes included in this study

Lake	Abbreviation	Geographic region	Trophic status	pH	Temp (°C)	Lake area (km²)	THRT (days)
Sarsvatnet	SA	Svalbard	Ultraoligotrophic, unstained	7.9	3.0	0.22	695^a
Tvillingvatna	TV	Svalbard	Oligomesotrophic, unstained	7.9	6.2	0.03	59^a
Storvatnet	ST	Svalbard	Oligotrophic, unstained	8.3	7.0	0.03	66^a
Øvretjørna	ØV	Svalbard	Oligotrophic, unstained	8.1	6.2	0.01	9^a
Upper Bear	UB	Lappland	Mesotrophic, polyhumic	6.3	14.3	0.05	62^a
Lower Bear	LB	Lappland	Mesotrophic, polyhumic	5.7	14.0	0.03	67
Reindeer	RE	Lappland	Mesotrophic, polyhumic	5.5	13.6	0.01	42^a
Siholma	SH	Lappland	Oligomesotrophic, humic	5.9	13.6	0.01	83^a
Örträsket	ÖR	Lappland	Mesotrophic, humic	6.3	11.6	7.30	100
Ånnsjön	ÅN	Jämtland	Oligotrophic, unstained	7.3	12.0	62.80	428
Tvigölingen	TG	Uppland	Mesotrophic, humic	7.5	18.5	0.07	147^a
Siggeforasjön	SF	Uppland	Oligomesotrophic, humic	7.3	17.9	0.76	180
Hålsjön	HÅ	Uppland	Mesoeutrophic, weakly humic	7.9	15.7	0.20	730
Vallentunasjön	VA	Uppland	Eutrophic, unstained	8.7	18.7	6.20	730
Äs puss	ÄP	Uppland	Hypereutrophic, humic	8.4	20.5	0.04	66^a

Headwater lake.