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

DE2815331

1.3 Site name

Sager Meer, Ahlhorner Fischteiche und Lethe

1.4 First Compilation date

1998-03

1.5 Update date

2017-05

1.6 Respondent:

Name/Organisation:Nieders. Landesbetrieb f. Wasserwirtschaft, Küsten- und Naturschutz
Address:               
Email:Poststelle@nlwkn-h.niedersachsen.de
Date site proposed as SCI:2000-06
Date site confirmed as SCI:2004-12
Date site designated as SAC: No data
National legal reference of SAC designation: No data

2. SITE LOCATION

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2.1 Site-centre location [decimal degrees]:

Longitude:8.123600
Latitude:52.949400

2.2 Area [ha]

868.9500

2.3 Marine area [%]

0.0000

2.4 Sitelength [km]:

0.00

2.5 Administrative region code and name

NUTS level 2 code Region Name
DE94Weser-Ems
DE94Weser-Ems
DE94Weser-Ems

2.6 Biogeographical Region(s)

Atlantic (100.00 %)

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
2310  info      3.9  0.00 
2330  info      5.1  0.00 
3110  info      16.2  0.00 
3130  info      69.4  0.00 
3150  info      0.4  0.00 
3160  info      1.1  0.00 
3260  info      0.00   
4010  info      0.6  0.00 
4030  info      3.8  0.00 
5130  info      0.05  0.00 
6430  info      1.4  0.00 
7110  info      0.4  0.00 
7120  info      34.7  0.00 
7140  info      1.6  0.00 
7150  info      0.6  0.00 
9110  info      0.8  0.00 
9160  info      0.3  0.00 
9190  info      87.7  0.00 
91D0  info      41.6  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.
F1099Lampetra fluviatilis     
F1096Lampetra planeri     
P1831Luronium natans    101  1000     
M1355Lutra lutra       
A1166Triturus cristatus    251  500     
  • 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
Apium inundatum             
Cladium mariscus             
Elatine hexandra             
Elatine hydropiper ssp. hydropiper             
Gentiana pneumonanthe             
Leersia oryzoides             
Littorella uniflora             
Lobelia dortmanna             
Pseudognaphalium luteoalbum             
1039Sympecma paedisca             
  • 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

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4.1 General site character

Habitat class % Cover
N0618.00
N0711.00
N083.00
N1425.00
N159.00
N1611.00
N1918.00
N204.00
N231.00

Total Habitat Cover

100

Other Site Characteristics

Ehemals oligotropher Geestsee mit Relikten von Strandlings-Gesellschaften und randlichem Übergangsmoor. Fischteichgebiet mit wertvoller Teichboden-Vegetation. Teile eines Bachtals mit randl. Mooren, Heiden, Wäldern.

4.2 Quality and importance

Sehr vielfältiger Biotopkomplex. Einer der wenigen Geestseen des Landes mit Strandlingsvegetation. Teichgebiet mit wertvollen Zwergbinsen- und Strandlings-Gesellschaften. Fließgewässer mit Bedeutung für das Flussneunauge.

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]
MA03.03i
LA04.01i
MA04.01i
MF02b
LF04i
MG01i
HH01.05b
HH04.02b
MH05.01i
MI01i
LJ02.05.02i
MJ02.06b
LJ02.10i
MJ03.02b
LJ03.02.01b
HK01.02i
HK02.01i
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
MB02.01.01i
MB02.05i

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

4.5 Documentation

L 3114/1-6, 8-9, 10, 12, 61, 68, 69, 71, 72 FFH-Basiserfassung LAVES, Binnenfischerei, Daten zur Fischfauna in Niedersachsen, unveröff. NLWKN, Pflanzenarten-Erfassungsprogramm NLWKN, Tierarten-Erfassungsprogramm NLÖ, Biotopkartierung

5. SITE PROTECTION STATUS

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5.1 Designation types at national and regional level:

Code Cover [%]
DE0271.67
DE030.13
DE0598.97
DE0721.67
DE112.19

5.2 Relation of the described site with other sites:

Designated at national or regional level:

Type code Site name Type Cover [%]
DE11Ahlhorner Fischteiche+2.19
DE03Heidefläche an der Lethe+0.13
DE07Lethetal*7.06
DE07Ahlhorner Fischteiche, Sager Heide*4.50
DE07Lethe-Tal und Staatsforst Tüdick*10.11
DE05Wildeshauser Geest*98.97
DE02Sager Meer+22.44
DE02Ahlhorner Fischteiche49.23

Designated at international level:

Type Site name Type Cover [%]
Other Ahlhorner Fischteiche+2.19
Heidefläche an der Lethe+0.13
Lethetal*7.06
Ahlhorner Fischteiche, Sager Heide*4.50
Lethe-Tal und Staatsforst Tüdick*10.11
Wildeshauser Geest*98.97
Sager Meer+22.44
Ahlhorner Fischteiche49.23

5.3 Site designation (optional)

Der Lebensraumtyp 3260 konnte 2006 nicht bestätigt werden. Status und/oder Möglichkeiten der Wiederansiedlung/-herstellung sind zu prüfen.

6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:LK Cloppenburg Landkreis Cloppenburg
Address:
Email:
Organisation:LK Oldenburg Landkreis Oldenburg
Address:
Email:
Organisation:Stadt Oldenburg Stadt Oldenburg
Address:
Email:

6.2 Management Plan(s):

An actual management plan does exist:

X
Yes Name: Erhaltungs- und Entwicklungsplan für das FFH-Teilgebiet 'Ahlhorner Fischtieche mit Letheoberlauf' , Niedersächsisches Forstamt Ahlhorn, Landkreise Oldenburg und Cloppenburg 2011
Link:

No, but in preparation
No

 

7. MAP OF THE SITE

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

SITE DISPLAY