Citation:

bg-7-3333-2010

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Abstract:

Lake Ohrid is likely of Pliocene age and thus commonly referred to as the oldest existing lake in Europe. In this study spatial variability of recent sediment composition is assessed using >50 basin wide distributed surface sediment samples. Analysis of biogeochemical bulk parameters, selected metals, pigment concentrations as well as grain size distributions revealed a significant spatial heterogeneity in surface sediment composition. It implies that sedimentation in Lake Ohrid is controlled by an interaction of multiple natural and anthropogenic factors and processes. Major factors controlling surface sediment composition are related to differences in geological catchment characteristics, anthropogenic land use, and a counterclockwise rotating surface water current. In some instances processes controlling sediment composition also seem to impact distribution patterns of biodiversity, which suggests a common interaction of processes responsible for both patterns.

Coverage:

Median Latitude: 41.048040 * Median Longitude: 20.727015 * South-bound Latitude: 40.919667 * West-bound Longitude: 20.642600 * North-bound Latitude: 41.160167 * East-bound Longitude: 20.798600

Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 0.0 m

Event(s):

OHRID * Latitude Start: 40.900000 * Longitude Start: 20.633000 * Latitude End: 41.167000 * Longitude End: 20.800000 * Location: Lake Ohrid, Macedonian/Albanian border * Method/Device: Gravity corer (GC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	LATITUDE	Latitude			Geocode
2	LONGITUDE	Longitude			Geocode
3	UTM Northing, Universal Transverse Mercator	UTM north	m	Vogel, Hendrik
4	UTM Easting, Universal Transverse Mercator	UTM east	m	Vogel, Hendrik
5	UTM Zone, Universal Transverse Mercator	UTM Zone		Vogel, Hendrik
6	DEPTH, sediment/rock	Depth sed	m		Geocode
7	Carbon, inorganic, total	TIC	%	Vogel, Hendrik
8	Carbon, organic, total	TOC	%	Vogel, Hendrik
9	Nitrogen, total	TN	%	Vogel, Hendrik
10	Carbon/Nitrogen ratio	C/N		Vogel, Hendrik
11	Feldspar (Area, 3.18Å)	Fsp A 3.18Å	cps	Vogel, Hendrik
12	Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand	500-250 µm	%	Wessels, Martin
13	Size fraction 0.250-0.125 mm, 2.0-3.0 phi, fine sand	250-125 µm	%	Wessels, Martin
14	Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand	125-63 µm	%	Wessels, Martin
15	Silt, very coarse	Silt v coarse	%	Wessels, Martin
16	Size fraction 0.063-0.020 mm, coarse silt	63-20 µm gU	%	Wessels, Martin
17	Size fraction 0.020-0.0063 mm, medium silt	20-6.3 µm mU	%	Wessels, Martin
18	Size fraction 0.0063-0.002 mm, fine silt	6.3-2 µm fU	%	Wessels, Martin
19	Silt, very fine	Silt v fine	%	Wessels, Martin
20	Size fraction < 0.002 mm, clay	<2 µm	%	Wessels, Martin
21	Chlorophyll a per unit sediment mass	Chl a/sed	µg/g	Vogel, Hendrik
22	Aluminium	Al	%	Vogel, Hendrik
23	Chromium	Cr	mg/kg	Vogel, Hendrik
24	Nickel	Ni	mg/kg	Vogel, Hendrik
25	Calcium	Ca	%	Vogel, Hendrik
26	Cobalt	Co	mg/kg	Vogel, Hendrik
27	Copper	Cu	mg/kg	Vogel, Hendrik
28	Iron	Fe	%	Vogel, Hendrik
29	Potassium	K	%	Vogel, Hendrik
30	Lithium	Li	mg/kg	Vogel, Hendrik
31	Magnesium	Mg	%	Vogel, Hendrik
32	Manganese	Mn	mg/kg	Vogel, Hendrik

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1534 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Latitude	2 Longitude	3 UTM north [m]	4 UTM east [m]	5 UTM Zone	7 TIC [%]	8 TOC [%]	9 TN [%]	10 C/N	11 Fsp A 3.18Å [cps]	12 500-250 µm [%]	13 250-125 µm [%]	14 125-63 µm [%]	15 Silt v coarse [%]	16 63-20 µm gU [%]	17 20-6.3 µm mU [%]	18 6.3-2 µm fU [%]	19 Silt v fine [%]	20 <2 µm [%]	21 Chl a/sed [µg/g]	22 Al [%]	23 Cr [mg/kg]	24 Ni [mg/kg]	25 Ca [%]	26 Co [mg/kg]	27 Cu [mg/kg]	28 Fe [%]	29 K [%]	30 Li [mg/kg]	31 Mg [%]	32 Mn [mg/kg]
40.9267	20.7544	4530649	479323	34T	0.21	0.8	0.059	13.5	6672	0.2	16.4	37.3	21.0	10.7	6.4	3.6	2.3	2.5	0.71
40.9267	20.7543	4530649	479315	34T	0.24	1.0	0.069	14.5	10340	1.2	12.0	39.5	26.0	9.9	4.8	2.7	1.9	2.2	0.71
41.0452	20.6942	4543819	474301	34T	3.09	2.0	0.334	6.0	353	0.5	4.2	7.5	12.0	14.3	22.2	19.5	10.7	9.5	0.67	4.28	86	40	1.16	14	16	2.18	1.36	18	0.48	714
41.0454	20.6956	4543847	474413	34T	2.94	2.0	0.276	7.2	279	0.0	0.0	4.0	12.0	14.2	22.9	22.5	13.0	11.7	0.64	4.90	86	36	1.22	8	20	2.56	1.50	22	0.58	748
41.1210	20.7676	4552215	480494	34T	1.33	2.5	0.246	10.1	885	0.7	7.9	22.2	22.0	15.9	12.7	8.9	5.3	4.7	6.54	6.04	150	150	9.56	16	40	3.66	1.84	50	1.06	1032
41.1221	20.7661	4552333	480368	34T	2.37	2.3	0.286	8.0	951	0.0	1.4	8.9	19.0	20.3	19.8	14.9	8.6	7.6	5.04	6.04	148	150	9.38	8	40	3.70	1.84	48	1.06	986
41.1223	20.7666	4552361	480403	34T	2.40	2.5	0.375	6.7	654	0.1	2.4	8.6	15.0	18.0	20.6	16.8	10.0	8.6	4.82	5.62	144	136	11.42	10	34	3.58	1.68	44	1.04	1848
41.1061	20.7964	4550553	482901	34T	7.45	2.4	0.307	7.8	255	0.0	0.4	10.2	25.0	20.6	16.9	11.4	6.9	9.2	10.80	5.74	154	154	10.28	16	36	3.60	1.62	44	1.08	1048
41.1063	20.7950	4550581	482787	34T	7.53	2.4	0.217	11.0	142	0.0	1.0	12.3	25.0	19.2	15.8	11.1	6.7	8.6	2.58	5.70	106	70	7.08	16	44	3.38	2.04	50	0.80	810
40.9696	20.7143	4535425	475961	34T	3.45	2.0	0.292	6.9	320	0.0	0.1	4.2	11.0	14.3	23.5	21.9	12.4	12.6	0.34	5.88	148	170	10.78	16	40	3.66	1.74	48	1.06	1488
41.0021	20.7792	4539012	481428	34T	3.31	1.6	0.245	6.5	545	0.0	0.1	3.2	10.0	16.3	25.7	21.9	11.9	11.4	0.45	5.40	118	110	11.70	10	32	3.32	1.66	44	0.98	1878
41.0478	20.7986	4544081	483074	34T	5.06	0.3	0.100	3.0	360										3.33	2.44	70	56	15.20	6	8	1.18	0.92	20	0.72	158
41.0409	20.7654	4543322	480283	34T	3.22	2.1	0.296	7.1	425	0.0	0.1	4.9	13.0	15.5	22.1	20.4	11.4	12.7	0.52	5.46	152	174	9.92	10	40	3.56	1.60	46	1.04	1958
41.0092	20.7180	4539817	476284	34T	3.57	1.9	0.307	6.2	233	0.0	0.0	3.9	11.0	13.3	22.0	23.1	14.0	12.5	0.19	5.60	128	118	11.68	10		3.38	1.82		0.98	830
41.1602	20.6981	4556581	474670	34T	5.45	2.1	0.288	7.3	266	0.1	0.8	3.2	17.0	25.4	20.9	14.0	8.5	10.3	4.80	3.72	70	40	16.06	4	28	2.22	1.28	32	0.68	426
41.1569	20.6760	4556227	472812	34T	6.55	2.3	0.339	6.8	378	0.0	0.3	2.7	14.0	23.8	23.9	15.8	8.9	10.7	5.27	5.94	110	62	7.00	20	44	3.52	2.04	52	0.82	896
41.1535	20.6803	4555850	473174	34T	5.30	2.2	0.310	7.1	286	0.0	0.0	1.8	10.0	21.5	25.4	15.1	10.0	12.8	2.92	5.68	122	118	10.78	12	34	3.46	1.88	48	0.94	846
41.1225	20.6883	4552401	473833	34T	3.84	1.5	0.227	6.6	381	0.0	0.0	2.5	8.0	16.9	28.7	21.6	10.3	11.7	0.37	5.04	164	144	10.84	16	38	3.72	1.78	46	1.06	2158
41.1172	20.6664	4551825	471992	34T	3.62	1.5	0.228	6.6	352	0.0	0.2	2.1	6.0	14.1	27.1	24.2	13.0	13.7	0.34	2.40		46	23.02		16	1.28	0.78	22	0.66	246
41.0721	20.6961	4546802	474465	34T	3.44	1.9	0.276	6.9	346	0.0	0.1	4.4	12.0	15.7	24.9	20.9	10.9	11.2	0.37	3.36	68	38	19.66	4	26	2.00	1.14	30	0.66	412
41.0536	20.7369	4544737	477891	34T	3.39	1.9	0.296	6.4	322	0.0	0.1	4.1	12.0	14.8	20.5	20.2	13.0	15.3	0.37	5.18	150	152	10.08	8	42	3.50	1.56	42	1.00	1994
41.0789	20.7511	4547544	479091	34T	3.55	1.5	0.248	6.0	343	0.0	0.3	4.2	10.0	14.1	24.0	22.2	12.4	13.1	0.19	2.10	62	44	24.76		16	1.12	0.66	18	0.58	210
41.0788	20.7513	4547540	479109	34T	3.70	1.9	0.308	6.2	422	0.0	0.0	3.5	10.0	15.0	26.5	23.1	11.5	10.3	0.60	6.42	104	66	3.96	20	46	3.80	2.28	56	0.82	1114
41.0217	20.6745	4541213	472637	34T	3.30	2.0	0.310	6.5	333	0.0	0.1	3.6	10.0	15.5	26.4	22.6	11.4	10.2	1.05	5.90	158	158	9.92	12	42	3.66	1.80	52	1.06	1662
41.0186	20.6426	4540882	469951	34T	5.36	1.8	0.273	6.6	290	0.1	1.4	5.8	11.0	16.9	25.6	19.2	9.5	10.1	1.83	3.98	186	198	15.76	10	30	2.82	1.22	32	1.18	952
40.9853	20.6989	4537167	474667	34T	3.62	2.0	0.286	7.0	237	0.0	0.2	4.5	10.0	14.0	22.6	21.7	12.4	14.4	0.68	5.28	142	152	11.20	16	42	3.46	1.54	42	1.02	1258
40.9726	20.6514	4535774	470669	34T	6.47	1.2	0.191	6.3	114	0.3	11.7	32.7	16.0	8.5	11.7	8.7	4.9	5.5	1.94	2.20	210	442	18.50	28	20	2.76	0.64	16	3.42	516
40.9417	20.6758	4532338	472713	34T	3.85	1.9	0.262	7.2	300	0.0	0.1	3.4	9.0	14.7	23.4	21.5	12.2	15.5	0.52	5.02	156	162	11.22	6	38	3.44	1.52	40	1.06	1028
40.9392	20.6505	4532063	470579	34T	5.15	2.2	0.345	6.4	168	0.0	0.8	6.1	14.0	18.1	23.9	17.5	9.2	10.6	2.54	3.44	218	344	15.10	22	32	3.02	1.00	28	1.48	1580
40.9197	20.6867	4529887	473616	34T	4.31	1.9	0.264	7.2	2003	0.0	0.8	7.5	19.0	20.5	20.8	14.8	8.0	8.5	3.06	3.96	166	186	12.70	16	52	2.80	1.16	28	1.10	1298
40.9248	20.7334	4530440	477556	34T	3.55	2.3	0.236	9.8	893	0.1	1.8	6.6	12.0	23.9	27.1	14.4	7.2	7.0		5.17	211	176	12.36	22	27	3.29	1.35	31	1.23	1156
40.9362	20.7548	4531704	479356	34T	1.62	2.0	0.208	9.6	1249	0.4	3.1	7.5	13.0	26.0	26.2	12.0	6.1	5.5		6.23	156	104	5.57	15	30	3.61	1.54	36	1.00	1647
40.9452	20.7279	4532711	477101	34T	2.67	2.3	0.254	9.1	717	0.2	2.5	8.0	14.0	20.7	24.5	14.7	8.1	7.3		5.46	160	136	8.24	9	32	3.30	1.56	38	1.06	2192
40.9506	20.7553	4533306	479405	34T	2.79	1.9	0.206	9.2	1502	0.3	1.7	6.7	14.0	23.2	26.2	14.3	7.2	6.8		5.80	191	148	9.75	14	27	3.41	1.51	36	1.17	963
40.9769	20.7676	4536224	480451	34T	3.02	2.4	0.287	8.4	549	0.0	1.1	8.4	14.0	20.3	26.1	15.3	7.9	7.0		5.69	154	150	10.05	13	35	3.52	1.55	40	1.10	1210
40.9836	20.7511	4536961	479063	34T	1.56	3.9	0.288	13.5	319	0.3	3.9	9.7	15.0	18.5	23.0	13.9	8.3	7.7		6.02	156	151	10.21	18	40	3.62	1.61	43	1.13	3053
40.9901	20.7440	4537695	478464	34T	1.08	4.1	0.310	13.2	252	0.1	2.4	9.5	15.0	17.5	21.8	15.9	9.6	8.4		6.40	161	164	9.16	11	38	3.80	1.67	43	1.13	5327
40.9927	20.7528	4537971	479204	34T	2.73	2.5	0.305	8.2	240	0.1	2.3	9.6	16.0	18.0	21.5	14.7	9.3	8.7		5.87	153	161	8.22	10	40	3.47	1.63	43	1.09	3447
40.9911	20.7479	4537796	478795	34T	3.47	1.6	0.266	6.0	454	0.1	2.2	8.0	10.0	15.8	24.7	18.2	10.3	10.7		5.62	144	160	11.81	15	33	4.01	1.55	40	1.11	1216
41.0249	20.7075	4541557	475407	34T	2.83	2.7	0.358	7.5	322	0.6	3.3	9.7	14.0	17.6	23.0	15.3	8.7	7.5		6.05	153	144	9.36	9	42	3.61	1.63	42	1.10	2373
41.0202	20.7538	4541034	479298	34T	2.53	2.3	0.278	8.3	347	0.0	0.8	7.6	13.0	18.8	23.7	16.8	9.9	9.2		6.57	162	168	8.71	22	40	3.77	1.75	44	1.15	2290
41.0302	20.7956	4542132	482819	34T	3.41	1.5	0.166	9.0	486	0.0	0.7	4.9	9.0	20.1	28.0	17.9	9.1	10.6		4.13	113	86	10.97	9	21	3.01	1.22	28	0.82	1001
41.0688	20.7818	4546417	481668	34T	3.43	2.3	0.275	8.4	444	0.0	0.3	5.4	12.0	19.2	26.2	18.2	9.3	9.6		5.32	158	153	11.29	14	33	3.34	1.45	39	1.08	1975
41.0957	20.7690	4549408	480599	34T	3.36	2.3	0.291	7.9	458	0.0	1.2	6.7	10.0	21.1	30.5	15.6	8.2	7.1		5.62	149	152	11.03	16	36	3.40	1.56	42	1.08	2184
41.0922	20.7246	4549025	476868	34T	3.07	2.3	0.304	7.6	298	0.4	3.2	7.6	10.0	18.8	28.1	15.5	8.5	7.9		5.92	149	131	10.80	12	37	3.54	1.65	44	1.10	1826
41.0879	20.6664	4548568	471985	34T	4.21	1.8	0.325	5.5	401	0.0	0.8	4.3	10.0	21.6	29.4	17.0	8.9	7.8		5.49	132	106	10.83	15	35	3.55	1.64	43	0.97	2619
41.0981	20.6487	4549710	470495	34T	3.74	2.2	0.259	8.5	371	0.2	2.7	4.0	6.0	20.5	30.5	18.0	9.1	8.9		5.64	118	109	12.23	15	33	3.17	1.70	42	0.97	919
41.1398	20.6717	4554325	472445	34T	3.32	2.3	0.273	8.4	420	0.0	0.0	0.6	7.0	20.9	30.1	20.9	10.4	10.4		5.53	108	80	10.53	10	40	3.17	1.77	43	0.89	1161
41.1483	20.7012	4555261	474928	34T	3.14	2.6	0.293	8.9	484	0.0	0.0	1.2	10.0	20.9	27.3	20.3	10.4	10.2		5.65	122	88	9.78	19	35	3.25	1.74	42	0.90	1879
41.1566	20.7219	4556182	476667	34T	2.71	3.4	0.347	9.8	362	0.0	0.0	2.3	11.0	20.4	24.7	19.2	10.7	11.5		5.88	111	77	10.31	11	37	3.42	1.80	45	0.89	1005
41.1382	20.7159	4554143	476155	34T	2.70	2.0	0.231	8.6	429	0.0	0.0	1.7	9.0	19.6	28.7	20.7	10.4	10.2		6.00	130	96	8.73	15	36	3.40	1.85	46	1.00	1234
41.1356	20.7385	4553838	478051	34T	2.74	2.5	0.285	8.8	484	0.0	0.1	2.7	8.0	22.2	30.8	18.4	9.4	8.2		6.04	135	114	9.14	17	40	3.58	1.85	47	1.00	1635
41.1165	20.7201	4551731	476501	34T	2.98	2.1	0.252	8.3	393	0.0	0.3	4.5	10.0	20.5	29.4	17.5	9.3	8.8		6.25	149	134	10.12	12	37	3.74	1.75	45	1.09	1930
41.1159	20.7552	4551648	479448	34T	2.60	2.4	0.292	8.2	412	0.0	1.2	5.1	10.0	22.4	29.1	16.2	8.4	7.2		6.24	143	108	8.61	23	38	3.78	1.87	45	1.03	1967
41.0984	20.7889	4549698	482275	34T	5.06	2.0	0.234	8.6	460	0.0	0.2	3.3	9.0	19.4	26.8	18.9	10.1	12.6		4.18	113	83	15.89	11	22	2.35	1.24	35	0.91	563