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

MT0000103

1.3 Site name

Zona fil-Bahar fl-Inhawi tad-Dwejra (Ghawdex)

1.4 First Compilation date

2010-08

1.5 Update date

2012-09

1.6 Respondent:

Name/Organisation:Environment and Resources Authority
Address:  Biodiversity Unit             
Email:natura.2000@era.org.mt
Date site proposed as SCI:2010-08
Date site confirmed as SCI: No data
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:14.186100
Latitude:36.052500

2.2 Area [ha]

228.6100

2.3 Marine area [%]

0.0000

2.4 Sitelength [km]:

0.00

2.6 Biogeographical Region(s)

Mediterranean (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
1120  info      9.05  0.00 
1170  info      26.13  0.00   
8330  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.
  • 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
Astroides calycularis               
Centrostephanus longispinus               
Cladocora caespitosa               
Cystoseira barbata               
Cystoseira ercegovicii               
Cystoseira spinosa var. tenuior               
Cystoseira stricta               
Epinephelus marginatus               
Ophidiaster ophidianus               
Palinurus elephas               
Paracentrotus lividus               
Petrobiona massilliana               
Pinna nobilis               
Posidonia oceanica               
Sargassum vulgare               
Sciaena umbra               
Scyllarides latus               
  • 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
N01100.00

Total Habitat Cover

100

Other Site Characteristics

A multitude of geomorphological features are present in this area, hence forming a complex seabed geomorphology. A series of drop-offs closely associated with rocky shoals and rocky platforms are found running along the coast. At the base of cliffs and beneath drop-offs, extensive boulder fields are present. A number of arches, caves and tunnels are also found along the coast of the site.

4.2 Quality and importance

The Dwejra coastal area in Gozo has been identified by the Structure Plan for theMaltese Islands as an area of potential international scientific importance in view of a complex of features of interest known from here, including geological, geomorphological, ecological, archaeological, historical and aesthetic aspects.Considering Posidonia meadows, there is an extensive, though non-continuous, bed within the area of 'Il-Bajja tad-Dwejra' (Dwejra Bay) where the sea-grass strands are dense and healthy. Small patches of the sea-grass also occur on bedrock in other parts of the area. The Posidonia oceanica meadows within this site are considered to be isolated since there is little or no continuity with meadows present in other coastal areas due to the prevailing deep water off most of the eastern coast of Gozo (Posidonia does not grow in deep waters). A baseline survey on the extent and character of Posidonia oceanica (L.) Delile Meadows in the territorial waters of Malta was carried out in 2002. Following examination ofvarious parameters during this Posidonia Baseline Survey, the meadow and thegeneral environmental conditions have been classified as normal within this site.The classification used was based on Pergent et. al (1995).Marine invertebrates associated with the Posidonia oceanica meadows includenumerous species of molluscs, polychaetes, crustaceans and echinoderms that seek refuge in the leaf canopy and root-rhizome layers, hence being quiteinconspicuous. Additionally, several species of sponges, corals, sea urchins, seastars, crabs and anemones occur within this site. Of particular note is the existence of small populations of Pinna nobilis, Centrostephanus longispinus andScyllarides latus, and Epinephelus marginatus which is frequently encountered bydivers. A single sighting of Tursiops truncatus (Baldacchino & Schembri, 2002)has been reported in this area. These are amongst the species which are affordedinternational (apart from national) protection.Rocky Reefs are present throughout the area and may either be reefs that rise vertically from a sandy bottom littered with large boulders to join submarine bedrock platforms or submarine continuations of emergent cliffs. Associations with Flabellia petiolata and Peyssonnelia squamaria cover most reef areas. A total of five fully submerged caves and six semi-submerged caves are present in the area. Several of these caves support very diverse assemblages characteristic of semi-obscure caves, that is those with dim light conditions but not complete darkness. The macrofaunal component of this assemblage type consists of a large number of bryozoans, sponges and serpulid polychaetes.The submerged caves mostly located in the northern half of the site have a very complex physiognomy and a bottom characterised by fine sediment. The largest of these appear to be two caves lying below the shore of Il-Hofra ta' Birwin and Iz-Zerqa area. The emergent caves, which are distributed throughout the study area, also have a very complex physiognomy, both underwater and above sea-level. The bottom inside the emergent caves consists of bedrock, with small boulders, cobbles and pebbles present in some places.Note on section: Ecological Information - Habitats The extent of national territory covered by Annex I marine habitat types 1170 & 8330 is not known; hence the relative surface fields were left blank. Caves (8330) are present on site, but have not been mapped; hence the % cover at this site was left blank.

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]
MD03.02o
MG02.08o
LE03.04i
MF03.01o
MF02.01.01i
MA07o
LL06i
ME01o
LI01i
LE03o
MD06i
MF02.02b
MG01.01i
MF02.03b
MF06b
MF02.01b
MA08o
LK01.01o
LL05i
HG05i
LG05o
Positive Impacts
RankActivities, management [code]Pollution (optional) [code]inside/outside [i|o|b]
LL06i
ME01o
MA08o
LF02.01.01o
LK01.01o
MG02.08o
LL06i
MF02.01b
LJ01o
MA07o
MF02.03b
MD03.02o
MF02.01.01i
MF02.02b
MG01.01i
LL05i
HG05i
MF03.01o
LE03.04i

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

5. SITE PROTECTION STATUS

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5.1 Designation types at national and regional level:

Code Cover [%]
MT99100.00

5.2 Relation of the described site with other sites:

Designated at national or regional level:

Type code Site name Type Cover [%]
MT99Zona fil-Bahar fl-inhawi tad-Dwejra (Ghawdex)=100.00

Designated at international level:

Type Site name Type Cover [%]
Other Zona fil-Bahar fl-inhawi tad-Dwejra (Ghawdex)=100.00

5.3 Site designation (optional)

The site is designated as a Special Area of Conservation of International Importance via Government Notice 851 of 2010, as declared through the provisions of the Flora, Fauna and Natural Habitats Regulations of 2006 (Legal Notice 311 of 2006).

6. SITE MANAGEMENT

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6.1 Body(ies) responsible for the site management:

Organisation:Environment and Resources Authority
Address:
Email:natura.2000@era.org.mt

6.2 Management Plan(s):

An actual management plan does exist:

Yes
No, but in preparation
X
No

 

7. MAP OF THE SITE

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INSPIRE ID:MT0000103
Map delivered as PDF in electronic format (optional)
Yes
No

SITE DISPLAY