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)

SITE	FR9101391
SITENAME	Le Vidourle

1. SITE IDENTIFICATION
2. SITE LOCATION
3. ECOLOGICAL INFORMATION
4. SITE DESCRIPTION
5. SITE PROTECTION STATUS
6. SITE MANAGEMENT
7. MAP OF THE SITE

1. SITE IDENTIFICATION

1.1 Type

1.2 Site code

FR9101391

1.3 Site name

Le Vidourle

1.4 First Compilation date

1996-01

1.5 Update date

2017-12

1.6 Respondent:

Name/Organisation:	Ministère de la Transition écologique - DGALN/DEB/SDET/ET5
Address:
Email:	en3.en.deb.dgaln@developpement-durable.gouv.fr

1.7 Site indication and designation / classification dates

Date site proposed as SCI:	2006-04
Date site confirmed as SCI:	2008-03
Date site designated as SAC:	2015-11
National legal reference of SAC designation:	http://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000031531618

2. SITE LOCATION

2.1 Site-centre location [decimal degrees]:

Longitude:	4.137780
Latitude:	43.741110

2.2 Area [ha]

209.0000

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
FR81	Languedoc-Roussillon

2.6 Biogeographical Region(s)

Mediterranean

(100.00 %)

3. ECOLOGICAL INFORMATION

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
						Representativity	Relative Surface	Conservation	Global
92A0			2.1	0.00	G	B	C	B	A

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
						Min	Max				Pop.	Con.	Iso.	Glo.
F	1103	Alosa fallax			p			i	P	G	C	C	C	B
M	1337	Castor fiber			p			i	P	G	B	A	C	A
R	1220	Emys orbicularis			p			i	P	G	C	C	A	B
I	1046	Gomphus graslinii			p			i	P	G	C	C	B	B
I	1036	Macromia splendens			p			i	P	G	C	C	B	C
I	1041	Oxygastra curtisii			p			i	P	G	C	C	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)

No information provided

4. SITE DESCRIPTION

4.1 General site character

Habitat class	% Cover
N06	83.00
N10	5.00
N16	10.00
N23	2.00
Total Habitat Cover	100

Other Site Characteristics

Dans sa partie aval, le Vidourle marque la limite entre les départements du Gard et de l'Hérault. La partie aval du Vidourle présente un caractère anthropisé (aménagements de protection contre les crues). Néanmoins, ce petit fleuve côtier de la plaine méditerranéenne constitue un corridor biologique important et abrite une faune remarquable. Le périmètre proposé ne concerne que le cours d'eau et ses abords immédiats. La limite amont se trouve à la hauteur du village de Boisseron tandis que la limite aval, sur la commune de St Laurent d'Aigouze, se trouve à la jonction avec le site Natura 2000 de la Camargue gardoise (FR9101406). La qualité de l'eau joue un rôle majeur dans les conditions de conservation des poissons et de leurs habitats. Pour le Gomphe de Graslin, des eaux claires et oxygénées et des secteurs sablonneux et limoneux bordés d'une végétation aquatique et riveraine abondante sont nécessaires. Périodiquement, le Vidourle connaît des crues très violentes et dévastatrices qui ont motivé son endiguement dans sa partie inférieure. Les digues font l'objet d'entretiens et de travaux de génie végétal conséquents. Les aménagements du cours d'eau, notamment pour la sécurité des riverains, devront également prendre en compte les objectifs de conservation des habitats des espèces visées.

4.2 Quality and importance

Le fleuve présente un intérêt biologique tout particulier au regard de l'existence d'espèces aquatiques et palustres remarquables et singulières par rapport à d'autres cours d'eau de la région. Le Gomphe de Graslin, libellule d'intérêt communautaire, justifie notamment l'inscription du Vidourle au réseau Natura 2000. Dans sa partie aval, le Vidourle est une rivière de plaine assez large qui se caractérise par des eaux claires et un courant lent. Plusieurs seuils diversifient les habitats. En amont, ils créent des secteurs profonds et calmes et, en aval, ils génèrent des courants plus vifs favorisant l'oxygénation des eaux. Les 2 seuils situés en aval du site sont aménagés pour assurer la libre circulation des poissons migrateurs. L'ensoleillement et la température très douce des eaux en été favorisent le développement de la végétation aquatique. La végétation rivulaire est parfois importante, voire remarquable. La variété de ces habitats permet à de nombreuses espèces de faune d'être présentes. La richesse piscicole du Vidourle est notamment reconnue.

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
Rank	Threats and pressures [code]	Pollution (optional) [code]	inside/outside [i\|o\|b]
H	A07		o
M	A08		o
L	D01.02		o
L	D01.04		o
M	E01		o
M	G01.01		i
H	H01		i
H	J02.03		i
M	L08		i
H	L08		o

Positive Impacts
Rank	Activities, 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		[%]
Public	National/Federal	0
	State/Province	0
	Local/Municipal	0
	Any Public	0
Joint or Co-Ownership		0
Private		0
Unknown		0
sum		100

4.5 Documentation (optional)

No information provided

5. SITE PROTECTION STATUS

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

Code	Cover [%]
FR00	100.00

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

No information provided

5.3 Site designation (optional)

No information provided

6. SITE MANAGEMENT

6.1 Body(ies) responsible for the site management:

Organisation:	SIA Vidourle
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)

No information provided

TABLE OF CONTENTS

1. SITE IDENTIFICATION

1.1 Type

1.2 Site code

1.3 Site name

1.4 First Compilation date

1.5 Update date

1.6 Respondent:

1.7 Site indication and designation / classification dates

2. SITE LOCATION

2.1 Site-centre location [decimal degrees]:

2.2 Area [ha]

2.3 Marine area [%]

2.4 Sitelength [km] (optional):

2.5 Administrative region code and name

2.6 Biogeographical Region(s)

3. ECOLOGICAL INFORMATION

3.1 Habitat types present on the site and assessment for them

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

3.3 Other important species of flora and fauna (optional)

4. SITE DESCRIPTION

4.1 General site character

Total Habitat Cover

Other Site Characteristics

4.2 Quality and importance

4.3 Threats, pressures and activities with impacts on the site

4.4 Ownership (optional)

4.5 Documentation (optional)

5. SITE PROTECTION STATUS

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

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

5.3 Site designation (optional)

6. SITE MANAGEMENT

6.1 Body(ies) responsible for the site management:

6.2 Management Plan(s):

6.3 Conservation measures (optional)

7. MAP OF THE SITE

SITE DISPLAY