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

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1.1 Type

B

1.2 Site code

HR2000593

1.3 Site name

Mrežnica - Tounjčica

1.4 First Compilation date

2012-12

1.5 Update date

2015-04

1.6 Respondent:

Name/Organisation:Ministry of Economy and Sustainable Development - MESD
Address:               
Email:zavod@mingor.hr

1.7 Site indication and designation / classification dates

Date site proposed as SCI:2013-07
Date site confirmed as SCI:2014-12
Date site designated as SAC: No information provided
National legal reference of SAC designation: No information provided

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:15.395000
Latitude:45.284000

2.2 Area [ha]

1095.9765

2.3 Marine area [%]

0.0000

2.4 Sitelength [km] (optional):


No information provided

2.5 Administrative region code and name


No information provided

2.6 Biogeographical Region(s)

Continental (0.00 %)

3. ECOLOGICAL INFORMATION

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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
3260  info      0.00 
32A0  info      0.00 
  • 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.
F5291Alburnus sarmaticus          DD 
P1614Apium repens          DD 
I1093Austropotamobius torrentium          DD 
F5261Barbus balcanicus          DD 
M1337Castor fiber          DD 
F1163Cottus gobio          DD 
M1355Lutra lutra    12   
F5345Rutilus virgo          DD 
I1032Unio crassus          DD 
  • 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)


No information provided

4. SITE DESCRIPTION

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4.1 General site character

Habitat class % Cover
N0636.50
N0832.65
N094.40
N1513.98
N1611.14
N170.45
N190.47
N230.41

Total Habitat Cover

100

Other Site Characteristics

The Mrežnica River is located in the Sava River drainage. It is a karstic river 64 km long with one big tributary, the Tounjčica River. The Mrežnica and Tounjčica Rivers are located on carbonate base and that is the reason why their waters have a large percentage of dissolved carbonates. The carbonates from water are incrustrating by algae, bryophytes and plants and forming travertine. Just on the Mrežnica River 93 travertine barriers are located. On the segments between two barriers river often has slow water course with lakes characteristics. Mrežnica and Tounjčica are receiving water from numerous karstic fields around Velika and Mala Kapela mountain through underground connections. Booth rivers flow more than 90% trough canyons. They are inhabited with more than 20 fish species, mostly reophilic. Spring area of the Mrežnica River is in the middle of military zone „Eugen Kvaternik". Few larger municipalities are situated in the lover part of the river.

4.2 Quality and importance

- site with small population of Apium repens - the area is considered to support a significant presence of Castor fiber - important site for Lutra lutra - important site for fish species Barbus balcanicus, Alburnus sarmaticus, Cottus gobio and Rutilus virgo - the site is of importance for the conservation of Austropotamobius torrentium in Continental Biogeographical region in Croatia - the site is important for conservation of Unio crassus in the Continental Biogeographical Region, with the estimated population size of 3-5% of the national population.

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]
MC01.04.01o
LG01.01.02i
LI01i
HJ02.05o
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]

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)

Boršić, I., Posavec-Vukelić, V., Hruševar, D., Plavac, I. (2012): Status and distribution of NATURA2000 species Apium repens (Jacq.) Lag. (Apiaceae) in Croatia. U: Jelaska, S.D., Klobučar, G., Šerić Jelaska, L., Leljak Levanić, D., Lukša, Ž. (ur.): Zbornik sažetaka 11. Hrvatskog biološkog kongresa s međunarodnim sudjelovanjem: 211. Hrvatsko biološko društvo 1885, Zagreb. Grubešić, M., Tomljanović, K., i Kovač, I. (2008): Znanstvena analiza dabra (Castor fiber L.) na području Hrvatske. Sveučilište u Zagrebu, Šumarski fakultet Lajtner, J.; Klobučar, G.; Crnčan, P. & Kapetanović, I. (2009): NATURA 2000; Rasprostranjenost vrste Unio crassus u Hrvatskoj, Technical report, Prirodoslovno matematički fakultet, Zagreb. Maguire, I.; Klobučar, G.; Faller, M. & Gottstein, S. (2007): Izvješće o postojećim podacima za potrebe izrade prijedloga potencijalnih Natura 2000 područja; slatkovodni rakovi (Astacus astacus, Austropotamobius torrentium i Austropotamobius pallipes). Maguire, I.; Lajtner, J. & Klobučar, G. (2008): Izvješće za potrebe izrade prijedloga potencijalnih Natura 2000 područja; slatkovodni mekušci (Theodoxus transversalis i Unio crassus) i slatkovodni rakovi (Austropotamobius torrentium i Austropotamobius pallipes), Technical report, Prirodoslovno matematički fakultet, Zagreb. Mrakovčić, M., Brigić, A., Buj, I., Ćaleta, M., Mustafić, P. i Zanella, D. (2006): Crvena knjiga slatkovodnih riba Hrvatske. Ministarstvo kulture Republike Hrvatske, Državni zavod za zaštitu prirode. Mrakovčić, M., Ćaleta, M., Mustafić, P., Marčić, Z., Zanella, D. i Buj, I. (2010): Izvješće za potrebu izrade prijedloga potencijalnih Natura 2000 područja - slatkovodne ribe. Sveučilište u Zagrebu, Prirodoslovno-matematički fakultet. Biološki odsjek. Mrakovčić, M., Mustafić, P., Zanella, D., Ćaleta, M., Marčić, Z., Mihinjač, T. i Vajdić, S. (2014): Projekt integracije EU Natura 2000 - Terensko istraživanje i laboratorijska analiza novoprikupljenih inventarizacijskih podataka za taksonomske skupine: Actinopterygii i Cephalaspidomorphi, Amphibia i Reptilia, Aves, Chiroptera, Decapoda, Lepidoptera, Odonata, Plecoptera, Trichoptera. Kvartalno izvješće za skupine Actinopterygii i Cephalaspidomorphi za Državni zavod za zaštitu prirode. Hrvatsko ihtiološko društvo. Šijan, M. (2009): Znanstvena analiza euroazijske vidre ( Lutra lutra L.) s dodatka II i IV direktive o zaštiti prirodnih staništa i divlje faune i flore na području mediteranske i alpske biogeografske zone Hrvatske. Udruga Sunce, Split

5. SITE PROTECTION STATUS

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6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:


No information provided

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

6.3 Conservation measures (optional)


No information provided

 

7. MAP OF THE SITE

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

SITE DISPLAY