Database release:
SDF
NATURA 2000 - STANDARD DATA FORM

For Special Protection Areas (SPA),
Proposed Sites for Community Importance (pSCI),
Sites of Community Importance (SCI) and
for Special Areas of Conservation (SAC)

TABLE OF CONTENTS

1. SITE IDENTIFICATION

Back to top

1.1 Type

B

1.2 Site code

BG0000233

1.3 Site name

Studena reka

1.4 First Compilation date

2004-07

1.5 Update date

2021-11

1.6 Respondent:

Name/Organisation:Ministry of Environment and Water, “National Nature Protection Service” Directorate
Address:  Sofia  22    Sofia    1000  Kn. Maria Luiza Blvd. 
Email:natura2000@moew.government.bg

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2007-03
Date site confirmed as SCI:2008-12
Date site designated as SAC:2021-03
National legal reference of SAC designation:Designation Order No. RD – 341/ 31.03.2021 (promulgated SG 54/2021) issued by the Minister of Environment and Water.
Explanation(s):Adopted by Council of Ministers Decision No. 122/02.03.2007 (promulgated SG 21/2007). Issued by the Minister of Environment and Water designation Order No. RD – 341/ 31.03.2021 (promulgated SG 54/2021) with prohibitions and restrictions on activities contradicting the conservation objectives of the site.

2. SITE LOCATION

Back to top

2.1 Site-centre location [decimal degrees]:

Longitude:25.530000
Latitude:43.575000

2.2 Area [ha]

5299.9014

2.3 Marine area [%]

0.0000

2.4 Sitelength [km] (optional):


No information provided

2.5 Administrative region code and name

NUTS level 2 code Region Name
BG32Severen tsentralen
BG32Severen tsentralen

2.6 Biogeographical Region(s)

Continental (100.00 %)

3. ECOLOGICAL INFORMATION

Back to top

3.1 Habitat types present on the site and assessment for them

Annex I Habitat types Site assessment
Code PF NP Cover [ha] Cave [number] Data quality A|B|C|D A|B|C
      RepresentativityRelative SurfaceConservationGlobal
1340  info      69.83  0.00  M  A  B  B  B 
1530  info      346.81  0.00  M  B  B  B  B 
40A0  info      0.15  0.00  G  D  -  -  - 
40C0  info      0.23  0.00  G  B  B  B  B 
6210  info      165.84  0.00  M  C  C  C  C 
6240  info      121.94  0.00  G  B  C  B  B 
6250  info      644.05  0.00  G  A  B  B  B 
  • PF: for the habitat types that can have a non-priority as well as a priority form (6210, 7130, 9430) enter "X" in the column PF to indicate the priority form.
  • NP: in case that a habitat type no longer exists in the site enter: x (optional)
  • Cover: decimal values can be entered
  • Caves: for habitat types 8310, 8330 (caves) enter the number of caves if estimated surface is not available.
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation)

3.2 Species referred to in Article 4 of Directive 2009/147/EC and listed in Annex II of Directive 92/43/EEC and site evaluation for them

Species Population in the site Site assessment
G Code Scientific Name S NP T Size Unit Cat. D.qual. A|B|C|D A|B|C
      MinMax  Pop.Con.Iso.Glo.
F1138Barbus meridionalis    p  67903  67903  i  C  G  B  A  C  A 
A1188Bombina bombina    p  2  2  localities  V  P  C  A  B  A 
F1149Cobitis taenia    p  487513  487513  i  C  G  C  A  C  A 
I4045Coenagrion ornatum    p  1  1  localities  R  G  C  A  B  C 
P4091Crambe tataria    p  7  7  i    G  A  B  B  A 
R5194Elaphe sauromates    p      localities  P  DD  C  A  C  B 
R1220Emys orbicularis    p  6  6  localities  R  M  C  A  C  A 
M1355Lutra lutra    p  10  11  i    G  C  A  C  A 
M2633Mustela eversmanii    p        R  DD  C  A  C  A 
F5339Rhodeus amarus    p  733500  733500  i  C  G  C  A  C  B 
F5329Romanogobio vladykovi    p  4368  4368  i  R  G  C  B  B  B 
M1335Spermophilus citellus    p  5  5  colonies  R  M  C  B  C  A 
R1219Testudo graeca    p  1  1  localities  V  P  C  A  C  A 
R1217Testudo hermanni    p      localities  P  DD  C  A  C  A 
A1993Triturus dobrogicus    p      localities  P  DD  C  A  B  A 
I1032Unio crassus    p      i  R  M  C  B  C  B 
  • Group: A = Amphibians, B = Birds, F = Fish, I = Invertebrates, M = Mammals, P = Plants, R = Reptiles
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Type: p = permanent, r = reproducing, c = concentration, w = wintering (for plant and non-migratory species use permanent)
  • Unit: i = individuals, p = pairs or other units according to the Standard list of population units and codes in accordance with Article 12 and 17 reporting (see reference portal)
  • Abundance categories (Cat.): C = common, R = rare, V = very rare, P = present - to fill if data are deficient (DD) or in addition to population size information
  • Data quality: G = 'Good' (e.g. based on surveys); M = 'Moderate' (e.g. based on partial data with some extrapolation); P = 'Poor' (e.g. rough estimation); VP = 'Very poor' (use this category only, if not even a rough estimation of the population size can be made, in this case the fields for population size can remain empty, but the field "Abundance categories" has to be filled in)

3.3 Other important species of flora and fauna (optional)

Species

Population in the site

Motivation

Group CODE Scientific Name S NP Size Unit Cat. Species Annex Other categories
     MinMax C|R|V|PIVVABCD
P  Adonis volgensis          R      X       
P  Anemone sylvestris          P      X       
I  Arctosa leopardus          C      X       
I  Calosoma inquisitor          C      X       
I  Calosoma sycophanta          C      X       
I  Carabus scabrosus          C      X       
P  Centaurea thracica          P        X     
P  Ephedra distachya          R      X       
P  Hedysarum grandiflorum ssp. bulgaricum          V        X     
P  Limonium bulgaricum          R        X     
P  Nepeta parviflora          V      X       
I  Orictes nasicornis          C      X       
P  Paeonia tenuifolia          R      X       
I  Saturnia pyri          C      X       
P  Serratula bulgarica          R          X   
P  Stachys arenariaeformis          C        X     
P  Stipa lessingiana          R      X       
P  Taraxacum bessarabicum          R      X       
  • Group: A = Amphibians, B = Birds, F = Fish, Fu = Fungi, I = Invertebrates, L = Lichens, M = Mammals, P = Plants, R = Reptiles
  • CODE: for Birds, Annex IV and V species the code as provided in the reference portal should be used in addition to the scientific name
  • S: in case that the data on species are sensitive and therefore have to be blocked for any public access enter: yes
  • NP: in case that a species is no longer present in the site enter: x (optional)
  • Unit: i = individuals, p = pairs or other units according to the standard list of population units and codes in accordance with Article 12 and 17 reporting, (see reference portal)
  • Cat.: Abundance categories: C = common, R = rare, V = very rare, P = present
  • Motivation categories: IV, V: Annex Species (Habitats Directive), A: National Red List data; B: Endemics; C: International Conventions; D: other reasons

4. SITE DESCRIPTION

Back to top

4.1 General site character

Habitat class % Cover
N067.00
N083.00
N0942.00
N1537.00
N167.00
N211.00
N233.00

Total Habitat Cover

100

Other Site Characteristics

The site includes open and low hilly areas, pastures, cereal fields, which fall especially in Studena River valleys. This valley is surroinded by hills with steppe vegetationa and there are salt meadows along the river. One part of the valleys is transfomed as a big fishponds.

4.2 Quality and importance

Open and low hilly areas, pastures, cereal fields. Hadzidimitrovo fishponds are of special importance for migrating and breeding water-connected species of birds, being also a feeding place for birds, nesting along the Danube. Important for the existence for the invertebrate fauna. This is one of the most steppe regions in Bulgaria with represantative steppe species and communities. Single locality in Danube plain for Crambe tataria and Serratula bulgarica, which are with international conservation importance. The biggest halophylous habitats in North Bulgaria. Many rare, endemic plant and animal species. The steppe communities have a diverse floristic composition. The most valuable are steppe communities with many rare and endagered steppe plant species as Serratula bulgarica, Hedysarum grandiflorums subsp. bulgaricum, Astragalus pubiflorus, Paeonia tenuifolia.

4.3 Threats, pressures and activities with impacts on the site

The most important impacts and activities with high effect on the site

Negative Impacts
RankThreats and pressures [code]Pollution (optional) [code]inside/outside [i|o|b]
HA01o
HA01i
MA04i
MA07i
LBi
MB01i
LB02.04i
LD01.02i
ME01i
MF01i
LF02.03i
MF03.01i
MF03.01o
MJ01o
HJ02.01.01i
HJ02.05.02i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
MA04.03i
LD01.02i
ME01i
LF02.03i

Rank: H = high, M = medium, L = low
Pollution: N = Nitrogen input, P = Phosphor/Phosphate input, A = Acid input/acidification,
T = toxic inorganic chemicals, O = toxic organic chemicals, X = Mixed pollutions
i = inside, o = outside, b = both

4.4 Ownership (optional)


No information provided

4.5 Documentation (optional)

Initial proposal and description of the site made by Zdravko Hubenov, Christo Deltshev - Institute of Zoology, 1 Tsar Osvoboditel Blvd., 1000 Sofia; Ivailo NIikolov, Nikolai Todorov - Bulgarian Ornithological Centre, 1 Tsar Osvoboditel Blvd., Sofia; Rossen Tzonev - Sofia University, rossentzonev@abv.bg.Data revised by a team of Bulgarian Academy of Sciences (http://www.bas.bg). New data provided by project "Mapping and assessment of the conservation status of the natural habitats and species - Phase 1" (see link).
http://natura2000.moew.government.bg/Home/ProtectedSite?code=BG0000233&siteType=HabitatDirective

5. SITE PROTECTION STATUS

Back to top

5.1 Designation types at national and regional level (optional):

Code Cover [%]
BG00100.00

5.2 Relation of the described site with other sites (optional):


No information provided

5.3 Site designation (optional)

The second (after Dobrudzha) big steppe region in Bulgaria. Locality of many rare, endangered and endemic plant species. Single localitiy within the interior of the country of habitat 6290. Serratula bulgarica is in IUCN, Crambe tataria is in the Directive 92/43, Studena River is the single locality of these species in Danube plain and one of the several in Bulgaria. Rich and still uninvestigated complitelly fauna.

6. SITE MANAGEMENT

Back to top

6.1 Body(ies) responsible for the site management:

Organisation:Regional Inspectorate of Environment and Water: Veliko Tarnovo, Ruse
Address:
Email:

6.2 Management Plan(s):

An actual management plan does exist:

 Yes
No, but in preparation
X
No

6.3 Conservation measures (optional)

Sustainable development of fisheries, implemented by creation of ponds with small fish of no commercial value for attracting and feeding fish-eating birds in order to reduce the interaction between fisheries and piscivorous birds. Leaving large areas of reedbeds within the area of the fishponds to ensure refuges for breeding/resting birds. Stop of the forestation with pine and locust tree plantations. Restoration of the normal water regime of Studena River an least in some parts of the course. Strict prtotection of steppe communities. Creating of strictly protected area in the locality of "Chaushchair", Karamanovo village for Limonium bulgariacum, and the locality of "Smardlikata" and "Delihassan", Hadzhidimitrovo village for Serratula bulgaruca, Hedysarum grandiflorum subsp. bulgaricum.

 

7. MAP OF THE SITE

Back to top
INSPIRE ID:
Map delivered as PDF in electronic format (optional)
 Yes
X
 No

SITE DISPLAY