Table 1. Open in new tab Location,...

		Latitude	Longitude	Altitude	Sampling time				Lake area	Temperature		Conductivity
Vondra 1	VO1*	−63.9613	−57.9028	229	14:20, 09.02.	1	V	Old	18 050	13.0	9.6	56
Vondra 4	VO4*	−63.9603	−57.8986	221	16:10, 09.02.	1	V	Old	6077	2.0	9.1	45
White	WH1*	−63.8971	−57.8124	65	12:15, 13.02.	1	V	Old	6662	8.2	7.7	128
Green 1	GR1*	−63.9033	−57.7805	65	14:00, 13.02.	1	V	Old	4220	6.8	8.8	97
Green 2	GR2*	−63.8985	−57.7761	40	14:40, 13.02.	1	V	Old	2970	7.9	9.2	176
Red	RED	−63.9093	−57.7962	65	13:00, 13.02.	1	V	Old	4324	7.4	8.9	265
Cyanobacterial	CYA*	−63.9657	−57.9069	185	13:45, 09.02.	1	V	Old	6944	15.7	9.2	84
Black	BLA	−63.9661	−57.8833	166	16:40, 09.02.	1	V	Old	5363	12.4	9.5	121
Vondra 3	VO3*	−63.9593	−57.9023	235	15:45, 09.02.	1	V	Old	13 300	10.9	9.0	55
Vondra 2	VO2*	−63.9601	−57.9063	228	15:00, 09.02.	1	V	Old	5977	11.1	9.0	49
Lachman 2	LA2*	−63.8000	−57.8086	13	19:15, 15.02.	2	G	Old	14 670	3.7	9.3	948
Lachman 1	LA1*	−63.7930	−57.8038	9	18:45, 15.02.	2	G	Old	29 670	5.2	7.2	411
Muddy	MUD	−63.8639	−57.9534	4	17:30, 12.02.	2	C	Old	10 940	7.9	7.9	376
Phormidium	PHO*	−63.8468	−58.0078	10	16:30, 12.02.	3	C+G	Old	158 100	7.1	8.2	268
Monolith C	MON-C*	−63.8978	−57.9565	67	09:40, 13.02.	3	C+G	Old	93 050	4.3	7.6	83
Katia 2	KA2*	−63.8711	−57.9757	38	18:30, 12.02.	3	C	Old	1518	6.8	7.8	198
Dan	DAN	−63.8789	−57.9788	41	19:15, 12.02.	3	C	Old	13 280	6.1	7.9	142
Louže	LOU*	−63.8687	−57.9207	40	12:20, 17.02.	3	n.a.	Old	12 150	4.9	8.0	552
Katia 1	KA1	−63.8731	−57.9758	36	18:55, 12.02.	3	C	Old	3289	5.3	7.8	149
Bibby	BIB*	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Federico	FED	−63.9379	−57.9806	387	19:30, 08.02.	4	M	Young	8269	1.4	10.4	59
Bibby 2	BIB-2	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Rožmberk	RO1*	−63.8177	−57.8455	201	16:00, 15.02.	5	M	Young	88 390	0.9	9.6	75
Naděje	NAD*	−63.8144	−57.8349	236	18:00, 15.02.	5	M	Young	8147	0.6	8.1	56
Blue–green	BLU*	−63.9151	−57.9568	184	n.a., 08.02.	6	M	Young	3806	5.5	7.8	91
Rozkoš	RO2*	−63.8230	−57.8448	260	17:00, 15.02.	6	M	Young	1944	0.9	8.8	77
Omega 1	OM1*	−62.8611	−57.8139	257	17:30, 13.02.	6	M	Young	24 320	0.6	9.2	54
Ginger	GIN*	−63.8748	−57.8028	197	16:10, 13.02.	6	M	Young	12 170	1.4	8.7	31
Láska	LAS*	−63.8237	−57.8448	269	16:30, 15.02.	6	M	Young	1455	1.1	9.3	63

Latitude

Longitude

Altitude

Sampling time

Lake area

Temperature

Conductivity

Lake

Code

(DD)

(m a.s.l.)

(HH:MM, DD.MM.)

Type

Bedrock

Age

(m²)

(°C)

(⁠|$\mu$|S cm⁻¹)

Vondra 1

VO1*

−63.9613

−57.9028

229

14:20, 09.02.

Old

18 050

13.0

9.6

Vondra 4

VO4*

−63.9603

−57.8986

221

16:10, 09.02.

Old

6077

2.0

9.1

White

WH1*

−63.8971

−57.8124

12:15, 13.02.

Old

6662

8.2

7.7

128

Green 1

GR1*

−63.9033

−57.7805

14:00, 13.02.

Old

4220

6.8

8.8

Green 2

GR2*

−63.8985

−57.7761

14:40, 13.02.

Old

2970

7.9

9.2

176

Red

RED

−63.9093

−57.7962

13:00, 13.02.

Old

4324

7.4

8.9

265

Cyanobacterial

CYA*

−63.9657

−57.9069

185

13:45, 09.02.

Old

6944

15.7

9.2

Black

BLA

−63.9661

−57.8833

166

16:40, 09.02.

Old

5363

12.4

9.5

121

Vondra 3

VO3*

−63.9593

−57.9023

235

15:45, 09.02.

Old

13 300

10.9

9.0

Vondra 2

VO2*

−63.9601

−57.9063

228

15:00, 09.02.

Old

5977

11.1

9.0

Lachman 2

LA2*

−63.8000

−57.8086

19:15, 15.02.

Old

14 670

3.7

9.3

948

Lachman 1

LA1*

−63.7930

−57.8038

18:45, 15.02.

Old

29 670

5.2

7.2

411

Muddy

MUD

−63.8639

−57.9534

17:30, 12.02.

Old

10 940

7.9

376

Phormidium

PHO*

−63.8468

−58.0078

16:30, 12.02.

C+G

Old

158 100

7.1

8.2

268

Monolith C

MON-C*

−63.8978

−57.9565

09:40, 13.02.

C+G

Old

93 050

4.3

7.6

Katia 2

KA2*

−63.8711

−57.9757

18:30, 12.02.

Old

1518

6.8

7.8

198

Dan

DAN

−63.8789

−57.9788

19:15, 12.02.

Old

13 280

6.1

7.9

142

Louže

LOU*

−63.8687

−57.9207

12:20, 17.02.

n.a.

Old

12 150

4.9

8.0

552

Katia 1

KA1

−63.8731

−57.9758

18:55, 12.02.

Old

3289

5.3

7.8

149

Bibby

BIB*

−63.8195

−57.9300

250

16:00, 12.02.

Young

7439

2.1

9.2

Federico

FED

−63.9379

−57.9806

387

19:30, 08.02.

Young

8269

1.4

10.4

Bibby 2

BIB-2

−63.8195

−57.9300

250

16:00, 12.02.

Young

7439

2.1

9.2

Rožmberk

RO1*

−63.8177

−57.8455

201

16:00, 15.02.

Young

88 390

0.9

9.6

Naděje

NAD*

−63.8144

−57.8349

236

18:00, 15.02.

Young

8147

0.6

8.1

Blue–green

BLU*

−63.9151

−57.9568

184

n.a., 08.02.

Young

3806

5.5

7.8

Rozkoš

RO2*

−63.8230

−57.8448

260

17:00, 15.02.

Young

1944

0.9

8.8

Omega 1

OM1*

−62.8611

−57.8139

257

17:30, 13.02.

Young

24 320

0.6

9.2

Ginger

GIN*

−63.8748

−57.8028

197

16:10, 13.02.

Young

12 170

1.4

8.7

Láska

LAS*

−63.8237

−57.8448

269

16:30, 15.02.

Young

1455

1.1

9.3

		Latitude	Longitude	Altitude	Sampling time				Lake area	Temperature		Conductivity
Vondra 1	VO1*	−63.9613	−57.9028	229	14:20, 09.02.	1	V	Old	18 050	13.0	9.6	56
Vondra 4	VO4*	−63.9603	−57.8986	221	16:10, 09.02.	1	V	Old	6077	2.0	9.1	45
White	WH1*	−63.8971	−57.8124	65	12:15, 13.02.	1	V	Old	6662	8.2	7.7	128
Green 1	GR1*	−63.9033	−57.7805	65	14:00, 13.02.	1	V	Old	4220	6.8	8.8	97
Green 2	GR2*	−63.8985	−57.7761	40	14:40, 13.02.	1	V	Old	2970	7.9	9.2	176
Red	RED	−63.9093	−57.7962	65	13:00, 13.02.	1	V	Old	4324	7.4	8.9	265
Cyanobacterial	CYA*	−63.9657	−57.9069	185	13:45, 09.02.	1	V	Old	6944	15.7	9.2	84
Black	BLA	−63.9661	−57.8833	166	16:40, 09.02.	1	V	Old	5363	12.4	9.5	121
Vondra 3	VO3*	−63.9593	−57.9023	235	15:45, 09.02.	1	V	Old	13 300	10.9	9.0	55
Vondra 2	VO2*	−63.9601	−57.9063	228	15:00, 09.02.	1	V	Old	5977	11.1	9.0	49
Lachman 2	LA2*	−63.8000	−57.8086	13	19:15, 15.02.	2	G	Old	14 670	3.7	9.3	948
Lachman 1	LA1*	−63.7930	−57.8038	9	18:45, 15.02.	2	G	Old	29 670	5.2	7.2	411
Muddy	MUD	−63.8639	−57.9534	4	17:30, 12.02.	2	C	Old	10 940	7.9	7.9	376
Phormidium	PHO*	−63.8468	−58.0078	10	16:30, 12.02.	3	C+G	Old	158 100	7.1	8.2	268
Monolith C	MON-C*	−63.8978	−57.9565	67	09:40, 13.02.	3	C+G	Old	93 050	4.3	7.6	83
Katia 2	KA2*	−63.8711	−57.9757	38	18:30, 12.02.	3	C	Old	1518	6.8	7.8	198
Dan	DAN	−63.8789	−57.9788	41	19:15, 12.02.	3	C	Old	13 280	6.1	7.9	142
Louže	LOU*	−63.8687	−57.9207	40	12:20, 17.02.	3	n.a.	Old	12 150	4.9	8.0	552
Katia 1	KA1	−63.8731	−57.9758	36	18:55, 12.02.	3	C	Old	3289	5.3	7.8	149
Bibby	BIB*	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Federico	FED	−63.9379	−57.9806	387	19:30, 08.02.	4	M	Young	8269	1.4	10.4	59
Bibby 2	BIB-2	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Rožmberk	RO1*	−63.8177	−57.8455	201	16:00, 15.02.	5	M	Young	88 390	0.9	9.6	75
Naděje	NAD*	−63.8144	−57.8349	236	18:00, 15.02.	5	M	Young	8147	0.6	8.1	56
Blue–green	BLU*	−63.9151	−57.9568	184	n.a., 08.02.	6	M	Young	3806	5.5	7.8	91
Rozkoš	RO2*	−63.8230	−57.8448	260	17:00, 15.02.	6	M	Young	1944	0.9	8.8	77
Omega 1	OM1*	−62.8611	−57.8139	257	17:30, 13.02.	6	M	Young	24 320	0.6	9.2	54
Ginger	GIN*	−63.8748	−57.8028	197	16:10, 13.02.	6	M	Young	12 170	1.4	8.7	31
Láska	LAS*	−63.8237	−57.8448	269	16:30, 15.02.	6	M	Young	1455	1.1	9.3	63

Latitude

Longitude

Altitude

Sampling time

Lake area

Temperature

Conductivity

Lake

Code

(DD)

(m a.s.l.)

(HH:MM, DD.MM.)

Type

Bedrock

Age

(m²)

(°C)

(⁠|$\mu$|S cm⁻¹)

Vondra 1

VO1*

−63.9613

−57.9028

229

14:20, 09.02.

Old

18 050

13.0

9.6

Vondra 4

VO4*

−63.9603

−57.8986

221

16:10, 09.02.

Old

6077

2.0

9.1

White

WH1*

−63.8971

−57.8124

12:15, 13.02.

Old

6662

8.2

7.7

128

Green 1

GR1*

−63.9033

−57.7805

14:00, 13.02.

Old

4220

6.8

8.8

Green 2

GR2*

−63.8985

−57.7761

14:40, 13.02.

Old

2970

7.9

9.2

176

Red

RED

−63.9093

−57.7962

13:00, 13.02.

Old

4324

7.4

8.9

265

Cyanobacterial

CYA*

−63.9657

−57.9069

185

13:45, 09.02.

Old

6944

15.7

9.2

Black

BLA

−63.9661

−57.8833

166

16:40, 09.02.

Old

5363

12.4

9.5

121

Vondra 3

VO3*

−63.9593

−57.9023

235

15:45, 09.02.

Old

13 300

10.9

9.0

Vondra 2

VO2*

−63.9601

−57.9063

228

15:00, 09.02.

Old

5977

11.1

9.0

Lachman 2

LA2*

−63.8000

−57.8086

19:15, 15.02.

Old

14 670

3.7

9.3

948

Lachman 1

LA1*

−63.7930

−57.8038

18:45, 15.02.

Old

29 670

5.2

7.2

411

Muddy

MUD

−63.8639

−57.9534

17:30, 12.02.

Old

10 940

7.9

376

Phormidium

PHO*

−63.8468

−58.0078

16:30, 12.02.

C+G

Old

158 100

7.1

8.2

268

Monolith C

MON-C*

−63.8978

−57.9565

09:40, 13.02.

C+G

Old

93 050

4.3

7.6

Katia 2

KA2*

−63.8711

−57.9757

18:30, 12.02.

Old

1518

6.8

7.8

198

Dan

DAN

−63.8789

−57.9788

19:15, 12.02.

Old

13 280

6.1

7.9

142

Louže

LOU*

−63.8687

−57.9207

12:20, 17.02.

n.a.

Old

12 150

4.9

8.0

552

Katia 1

KA1

−63.8731

−57.9758

18:55, 12.02.

Old

3289

5.3

7.8

149

Bibby

BIB*

−63.8195

−57.9300

250

16:00, 12.02.

Young

7439

2.1

9.2

Federico

FED

−63.9379

−57.9806

387

19:30, 08.02.

Young

8269

1.4

10.4

Bibby 2

BIB-2

−63.8195

−57.9300

250

16:00, 12.02.

Young

7439

2.1

9.2

Rožmberk

RO1*

−63.8177

−57.8455

201

16:00, 15.02.

Young

88 390

0.9

9.6

Naděje

NAD*

−63.8144

−57.8349

236

18:00, 15.02.

Young

8147

0.6

8.1

Blue–green

BLU*

−63.9151

−57.9568

184

n.a., 08.02.

Young

3806

5.5

7.8

Rozkoš

RO2*

−63.8230

−57.8448

260

17:00, 15.02.

Young

1944

0.9

8.8

Omega 1

OM1*

−62.8611

−57.8139

257

17:30, 13.02.

Young

24 320

0.6

9.2

Ginger

GIN*

−63.8748

−57.8028

197

16:10, 13.02.

Young

12 170

1.4

8.7

Láska

LAS*

−63.8237

−57.8448

269

16:30, 15.02.

Young

1455

1.1

9.3

Table 1.

Open in new tab

Location, sampling time (all in 2017), and the most relevant characteristics of the JRI lakes. The information on lake type, bedrock, age, and lake area were extracted from Nedbalová et al. (2013). Samples analyzed for diatoms are indicated by an asterisk (n.a. = not available).

		Latitude	Longitude	Altitude	Sampling time				Lake area	Temperature		Conductivity
Lake	Code	(DD)	(DD)	(m a.s.l.)	(HH:MM, DD.MM.)	Type	Bedrock	Age	(m²)	(°C)	pH	(⁠\|$\mu$\|S cm⁻¹)
Vondra 1	VO1*	−63.9613	−57.9028	229	14:20, 09.02.	1	V	Old	18 050	13.0	9.6	56
Vondra 4	VO4*	−63.9603	−57.8986	221	16:10, 09.02.	1	V	Old	6077	2.0	9.1	45
White	WH1*	−63.8971	−57.8124	65	12:15, 13.02.	1	V	Old	6662	8.2	7.7	128
Green 1	GR1*	−63.9033	−57.7805	65	14:00, 13.02.	1	V	Old	4220	6.8	8.8	97
Green 2	GR2*	−63.8985	−57.7761	40	14:40, 13.02.	1	V	Old	2970	7.9	9.2	176
Red	RED	−63.9093	−57.7962	65	13:00, 13.02.	1	V	Old	4324	7.4	8.9	265
Cyanobacterial	CYA*	−63.9657	−57.9069	185	13:45, 09.02.	1	V	Old	6944	15.7	9.2	84
Black	BLA	−63.9661	−57.8833	166	16:40, 09.02.	1	V	Old	5363	12.4	9.5	121
Vondra 3	VO3*	−63.9593	−57.9023	235	15:45, 09.02.	1	V	Old	13 300	10.9	9.0	55
Vondra 2	VO2*	−63.9601	−57.9063	228	15:00, 09.02.	1	V	Old	5977	11.1	9.0	49
Lachman 2	LA2*	−63.8000	−57.8086	13	19:15, 15.02.	2	G	Old	14 670	3.7	9.3	948
Lachman 1	LA1*	−63.7930	−57.8038	9	18:45, 15.02.	2	G	Old	29 670	5.2	7.2	411
Muddy	MUD	−63.8639	−57.9534	4	17:30, 12.02.	2	C	Old	10 940	7.9	7.9	376
Phormidium	PHO*	−63.8468	−58.0078	10	16:30, 12.02.	3	C+G	Old	158 100	7.1	8.2	268
Monolith C	MON-C*	−63.8978	−57.9565	67	09:40, 13.02.	3	C+G	Old	93 050	4.3	7.6	83
Katia 2	KA2*	−63.8711	−57.9757	38	18:30, 12.02.	3	C	Old	1518	6.8	7.8	198
Dan	DAN	−63.8789	−57.9788	41	19:15, 12.02.	3	C	Old	13 280	6.1	7.9	142
Louže	LOU*	−63.8687	−57.9207	40	12:20, 17.02.	3	n.a.	Old	12 150	4.9	8.0	552
Katia 1	KA1	−63.8731	−57.9758	36	18:55, 12.02.	3	C	Old	3289	5.3	7.8	149
Bibby	BIB*	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Federico	FED	−63.9379	−57.9806	387	19:30, 08.02.	4	M	Young	8269	1.4	10.4	59
Bibby 2	BIB-2	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Rožmberk	RO1*	−63.8177	−57.8455	201	16:00, 15.02.	5	M	Young	88 390	0.9	9.6	75
Naděje	NAD*	−63.8144	−57.8349	236	18:00, 15.02.	5	M	Young	8147	0.6	8.1	56
Blue–green	BLU*	−63.9151	−57.9568	184	n.a., 08.02.	6	M	Young	3806	5.5	7.8	91
Rozkoš	RO2*	−63.8230	−57.8448	260	17:00, 15.02.	6	M	Young	1944	0.9	8.8	77
Omega 1	OM1*	−62.8611	−57.8139	257	17:30, 13.02.	6	M	Young	24 320	0.6	9.2	54
Ginger	GIN*	−63.8748	−57.8028	197	16:10, 13.02.	6	M	Young	12 170	1.4	8.7	31
Láska	LAS*	−63.8237	−57.8448	269	16:30, 15.02.	6	M	Young	1455	1.1	9.3	63

		Latitude	Longitude	Altitude	Sampling time				Lake area	Temperature		Conductivity
Lake	Code	(DD)	(DD)	(m a.s.l.)	(HH:MM, DD.MM.)	Type	Bedrock	Age	(m²)	(°C)	pH	(⁠\|$\mu$\|S cm⁻¹)
Vondra 1	VO1*	−63.9613	−57.9028	229	14:20, 09.02.	1	V	Old	18 050	13.0	9.6	56
Vondra 4	VO4*	−63.9603	−57.8986	221	16:10, 09.02.	1	V	Old	6077	2.0	9.1	45
White	WH1*	−63.8971	−57.8124	65	12:15, 13.02.	1	V	Old	6662	8.2	7.7	128
Green 1	GR1*	−63.9033	−57.7805	65	14:00, 13.02.	1	V	Old	4220	6.8	8.8	97
Green 2	GR2*	−63.8985	−57.7761	40	14:40, 13.02.	1	V	Old	2970	7.9	9.2	176
Red	RED	−63.9093	−57.7962	65	13:00, 13.02.	1	V	Old	4324	7.4	8.9	265
Cyanobacterial	CYA*	−63.9657	−57.9069	185	13:45, 09.02.	1	V	Old	6944	15.7	9.2	84
Black	BLA	−63.9661	−57.8833	166	16:40, 09.02.	1	V	Old	5363	12.4	9.5	121
Vondra 3	VO3*	−63.9593	−57.9023	235	15:45, 09.02.	1	V	Old	13 300	10.9	9.0	55
Vondra 2	VO2*	−63.9601	−57.9063	228	15:00, 09.02.	1	V	Old	5977	11.1	9.0	49
Lachman 2	LA2*	−63.8000	−57.8086	13	19:15, 15.02.	2	G	Old	14 670	3.7	9.3	948
Lachman 1	LA1*	−63.7930	−57.8038	9	18:45, 15.02.	2	G	Old	29 670	5.2	7.2	411
Muddy	MUD	−63.8639	−57.9534	4	17:30, 12.02.	2	C	Old	10 940	7.9	7.9	376
Phormidium	PHO*	−63.8468	−58.0078	10	16:30, 12.02.	3	C+G	Old	158 100	7.1	8.2	268
Monolith C	MON-C*	−63.8978	−57.9565	67	09:40, 13.02.	3	C+G	Old	93 050	4.3	7.6	83
Katia 2	KA2*	−63.8711	−57.9757	38	18:30, 12.02.	3	C	Old	1518	6.8	7.8	198
Dan	DAN	−63.8789	−57.9788	41	19:15, 12.02.	3	C	Old	13 280	6.1	7.9	142
Louže	LOU*	−63.8687	−57.9207	40	12:20, 17.02.	3	n.a.	Old	12 150	4.9	8.0	552
Katia 1	KA1	−63.8731	−57.9758	36	18:55, 12.02.	3	C	Old	3289	5.3	7.8	149
Bibby	BIB*	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Federico	FED	−63.9379	−57.9806	387	19:30, 08.02.	4	M	Young	8269	1.4	10.4	59
Bibby 2	BIB-2	−63.8195	−57.9300	250	16:00, 12.02.	4	M	Young	7439	2.1	9.2	29
Rožmberk	RO1*	−63.8177	−57.8455	201	16:00, 15.02.	5	M	Young	88 390	0.9	9.6	75
Naděje	NAD*	−63.8144	−57.8349	236	18:00, 15.02.	5	M	Young	8147	0.6	8.1	56
Blue–green	BLU*	−63.9151	−57.9568	184	n.a., 08.02.	6	M	Young	3806	5.5	7.8	91
Rozkoš	RO2*	−63.8230	−57.8448	260	17:00, 15.02.	6	M	Young	1944	0.9	8.8	77
Omega 1	OM1*	−62.8611	−57.8139	257	17:30, 13.02.	6	M	Young	24 320	0.6	9.2	54
Ginger	GIN*	−63.8748	−57.8028	197	16:10, 13.02.	6	M	Young	12 170	1.4	8.7	31
Láska	LAS*	−63.8237	−57.8448	269	16:30, 15.02.	6	M	Young	1455	1.1	9.3	63

Bedrock explanation: C = Late Cretaceous marine sediments, G = Miocene–Holocene glacial sediments composed mostly of local volcanic rocks and marine Cretaceous sediments, with minor admixture of Antarctic Peninsula derived igneous and metamorphic rocks, M = recent glaciogenic (morainic) sediments with present glacier ice composed mostly of local volcanic rocks, with some admixture of marine Cretaceous sediments, V = Neogene volcanic rocks consisting mostly of hyaloclastite breccias, tuffs, and subaerial basalts.

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