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

FR2500110

1.3 Site name

Vallee de la See

1.4 First Compilation date

1995-11

1.5 Update date

2014-01

1.6 Respondent:

Name/Organisation:Ministère de l'écologie, du développement durable et de l'énergie - DGALN/DEB/SDEN/Bureau Natura 2000
Address:          La Défense Cedex  92055   
Email:en3.en.deb.dgaln@developpement-durable.gouv.fr
Date site proposed as SCI:1999-03
Date site confirmed as SCI:2004-12
Date site designated as SAC:2014-10
National legal reference of SAC designation:http://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000029583015

2. SITE LOCATION

Back to top

2.1 Site-centre location [decimal degrees]:

Longitude:-1.107220
Latitude:48.726110

2.2 Area [ha]

1424.0000

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
FR25Basse-Normandie

2.6 Biogeographical Region(s)

Atlantic (100.00 %)

3. ECOLOGICAL INFORMATION

Back to top

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.
F1163Cottus gobio         
F1096Lampetra planeri         
F1095Petromyzon marinus         
F1106Salmo salar         
  • 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
A168Actitis hypoleucos (Linnaeus, 1758)               
Blasia pusilla L.                 
Lathraea clandestina L.                 
A156Limosa limosa (Linnaeus, 1758)               
Pilularia globulifera L.                 
Salmo trutta fario Linnaeus, 1758                 
Salmo trutta trutta Linnaeus, 1758                 
  • 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
N061.00
N0714.00
N1060.00
N2125.00

Total Habitat Cover

100

Other Site Characteristics

La géologie du site est composite : large fond de vallée composé d'alluvions récentes reposant sur un substrat schisteux, pentes constituées de roches métamorphiques très dures ou cornéennes et plateau de nature granitique, renfermant des aquifères qui permettent un soutien d'étiage de la Sée assez élevé. Le haut bassin s'inscrivant dans un contexte pluvieux, les crues peuvent être sévères, fortement accentuées par un ruissellement important. L'importance des précipitations et du ruissellement sur les roches dures du bassin ont façonné des cours d'eau aux écoulements rapides, localement encaissés, à la morphodynamique très active et aux fonds pierreux bien ouverts. - Dégradation progressive de la qualité physico-chimique des eaux de la Sée (augmentation régulière de la teneur en nitrates). - Divagation du bétail dans le lit mineur contribuant à la dégradation des habitats naturels aquatiques. - Impact négatif potentiel sur le cours aval lors de la mise en place de l'autoroute des estuaires.

4.2 Quality and importance

Motivations pour la liste des autres espèces importantes de faune et de flore (rubrique 3.3) : - protection réglementaire ; - populations remarquables.

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]
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)

Type[%]
PublicNational/Federal0
State/Province0
Local/Municipal0
Any Public0
Joint or Co-Ownership0
Private0
Unknown0
sum100

4.5 Documentation

CONSEIL SUPERIEUR DE LA PECHE, 1998 - Directive européenne 92/43/CEE Habitats Faune-Flore. Projet de Réseau Natura 2000. Etude des sites d'intérêt piscicole en Basse-Normandie. Département de la Manche. Vallées de la Sée et de l'Airou. DIREN Basse-Normandie.

5. SITE PROTECTION STATUS

Back to top

5.1 Designation types at national and regional level:

Code Cover [%]
IN004.00

5.3 Site designation (optional)

Liste des codes désignations non reportés dans le nouveau FSD : Code Designation : FR33 ; Couverture : 1 Un arrêté préfectoral de protection de biotope est prévu sur la Sée dans le Schéma départemental de vocation piscicole (complément de la rubrique 5.1).

6. SITE MANAGEMENT

Back to top

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

6.3 Conservation measures (optional)

Opérations de nettoyage de la rivière en cours d'achèvement.

 

7. MAP OF THE SITE

Back to top No data

SITE DISPLAY