River typology in Romania

General description

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Classification system

Stream type (former symbol)	Code	eco	Catchment size (km2)	Geology	Lithological bed structure	Slope (%0)	Altitude (mdMN)	Precipitation (mm/year)	Temperature (°C)	q (l/s/km2)	q 95% (l/s/km2)	Fish zonnation
Stream in mountain, pied-mont or high plateau area (01+02)	RO01	10	10-1000	a-siliceous, b-calcareous, c. organic	blocks, boulders, gravel	20-200	>500	600-1400	-2 +9	>5	>0.5	Traut, Grayling, Dace
Stream sector in pied-mont or high plateau area Stream sector in pied-mont or high plateau area with endemic species (03)	RO02 RO02*	10	1000-10000	a-siliceous, b-calcareous	gravel, boulders	3-20	>500	600-800	7-9	5-20	1-3	Grayling, Chub, Romanichthys valsanicola (*)
Stream sector in intramountain depression (05) File:Type3.jpg	RO03	10	>10	a-siliceous, b-calcareous, c-organic	sand, gravel, boulders	1-3	>500	600-800	7-9	3-20	0.2-2	Dace, Chub
Stream in hilly or plateau area (07+09+014+23) File:Type4.jpg	RO04	10a,11,12,16	10-1000	a-siliceous, b-calcareous, c-organic	sand, gravel	1-30	200-500	500-700	8-10	1-5	0.01-0.5	Dace
Stream sector in hilly and plateau area (04+06+08)	RO05	10, 10a	1000-10000	a-siliceous, b-calcareous, c-organic	sand, gravel	0.5-20	200-500	500-700	8-10	3-15	0.2-2	Chub, Med. Barbel
Stream in plain area (10+15+24) File:Type6.jpg	RO06	11,12,16	10-2000	a-siliceous, b-calcareous, c-organic	sand, silty clay, silt	<8	<200	400-600	9-11	<3	<0.3	Chub, Perch, Carp
Stream sector in plain area (11) File:Type7.jpg	RO07	11	1000-3000	a-siliceous, b-calcareous, c-organic	Sand, silt, clay	<1	<200	400-500	9-11	1-3	0.2-0.4	Dace
Stream sector in plain area (16) File:Type8.jpg	RO08	12	1000-5000	a-siliceous, b-calcareous, c-organic	Sand, silt	0.5-5	<200	400-600	9-11	1-3	0.2-0.4	Chub, Perch
Stream sector with wetlands in plain area (25)	RO09	16	1000-5000	a-siliceous, b-calcareous, c-organic	Sand, silt	<2	<200	400-600	9-11	1-3	0.2-0.4	Chub
Stream sector in plain area F>3000km2 (11) F>5000 km2 (12+17+26) File:Type10.jpg	RO10 RO10*	11, 12,16	>3000 >5000	a-siliceous, b-calcareous, c-organic	Sand, silt, clay	0.5-5	<200	400-600	9-11	2-10	0.05-1	Chub, Barbel, Dace
Stream sector with wetlands in plain area F>3000km2 (11) F>5000 km2 (13+18+27)	RO11 RO11*	11, 12,16	>3000 >5000	a-siliceous, b-calcareous, c-organic	Sand, silt clay	<1	<200	400-600	9-11	2-10	0.1-1	Barbel, Carp
Danube river-Cazane Km 975-863 (RO19) File:Type12.jpg	RO12	12	570.900-574.850	Calcareous	sand, gravel, boulders	0,07	100-200	600-800	8-10	9	3	Carp
Danube river Cazane-Calarasi Km 863-375.5 (20) File:Type13.jpg	RO13	12	574.000-698.000	Siliceous	sand, gravel, boulders	0,05	5-70	500-600	9-11	8	2	Carp*
Danube river Calarasi-Isaccea Km 375.5-100 (21) File:Type14.jpg	RO14	12	698.000-780.650	Siliceous	sand, clay	0,04	5	400-500	9-11	7	1.5	Carp*
Isaccea-Sulina (22)	RO15	12	805.300	Organic	sand, silt	<0,01	<5	400-500	>11			Carp, Pontic shad**
Streams qualitatively influenced by natural causes and temporar waters Stream influenced from qualitative point of view by natural causes (28) File:Type16.jpg	RO16		10-1000
Temporary stream in mountain area (29) File:Type17.jpg	RO17		10-1000	siliceous	blocks, boulders, gravel	20-150	>800	700-1100	-2 +8	2-16	0
Temporary stream in pied-mont or high plateau area(30) File:Type18.jpg	RO18		10-1000	a-siliceous, b-calcareous	boulders, gravel	25-45	500-800	600-800	7-9	5-17	0
Temporary stream in plateau area (31) File:Type19.jpg	RO19		10-1000	a-siliceous, b-calcareous	gravel, sand, silt	5-30	200-500	450-550	8-10	1.5-7	0
Temporary stream in plain area (32) File:Type20.jpg	RO20		10-2000	a-siliceous, b-calcareous	sand, silt	<8	<200	400-500	9-11	<2	0