LevelPressureEnvironment

ImpactPressureWaterColumn

ImpactPressureSeabedHabitats

ImpactPressureFunctionalGroup

MarineCoast

LitRock

FishCoastal, FunctionalGroupOther

ShallRock,ShallMxdSed, ShelfMxdSed

FishPelagic, FishDemersal

Shipping, including yachting, (either as hull fouling, ballast water or sea chest transportation) is the main activity responsible for the accidental introduction of NIS in Maltese waters, followed by aquaculture which has resulted in both deliberate and accidental introductions and aquarium trade. NIS recorded from ballast water tanks or for which ballast water transportation has been given as a possible mode of entry include for instance Callinectes sapidus, Eucidaris tribuloides, Fulvia fragilis and Prionocidaris baculosa, while in the case of Oplegnathus fasciatus, transportation in sea chests has been given as the most plausible mode of entry. NIS associated with hull fouling include Anteaeolidiella foulisi and Megabalanus tintinnabulum. A number of NIS have been accidentally introduced via aquaculture activities, such as Celleporaria aperta, Celleporaria pilaefera, Crepidula fornicata and Gibbula cineraria, while Crassostrea gigas has been deliberately introduced. Species, which occur naturally in the Maltese Islands, but which have also been imported for aquaculture purposes include Ostrea edulis, Mytilus edulis, Mytilus galloprovincialis, Ruditapes (=Tapes) decussates, Dicentrarchus labrax, Sparus aurata, and Argyrosomus regius. The Maltese Islands are also important staging points for drilling platforms, and their occasional duration moored in coastal waters (can be for weeks), giving ample opportunity for movement of biota associated with the platform to inshore waters.

Shipping, including yachting, (either as hull fouling, ballast water or sea chest transportation) is the main activity responsible for the accidental introduction of NIS in Maltese waters, followed by aquaculture which has resulted in both deliberate and accidental introductions and aquarium trade. NIS recorded from ballast water tanks or for which ballast water transportation has been given as a possible mode of entry include for instance Callinectes sapidus, Eucidaris tribuloides, Fulvia fragilis and Prionocidaris baculosa, while in the case of Oplegnathus fasciatus, transportation in sea chests has been given as the most plausible mode of entry. NIS associated with hull fouling include Anteaeolidiella foulisi and Megabalanus tintinnabulum. A number of NIS have been accidentally introduced via aquaculture activities, such as Celleporaria aperta, Celleporaria pilaefera, Crepidula fornicata and Gibbula cineraria, while Crassostrea gigas has been deliberately introduced. Species, which occur naturally in the Maltese Islands, but which have also been imported for aquaculture purposes include Ostrea edulis, Mytilus edulis, Mytilus galloprovincialis, Ruditapes (=Tapes) decussates, Dicentrarchus labrax, Sparus aurata, and Argyrosomus regius. The Maltese Islands are also important staging points for drilling platforms, and their occasional duration moored in coastal waters (can be for weeks), giving ample opportunity for movement of biota associated with the platform to inshore waters.

Shipping, including yachting, (either as hull fouling, ballast water or sea chest transportation) is the main activity responsible for the accidental introduction of NIS in Maltese waters, followed by aquaculture which has resulted in both deliberate and accidental introductions and aquarium trade. NIS recorded from ballast water tanks or for which ballast water transportation has been given as a possible mode of entry include for instance Callinectes sapidus, Eucidaris tribuloides, Fulvia fragilis and Prionocidaris baculosa, while in the case of Oplegnathus fasciatus, transportation in sea chests has been given as the most plausible mode of entry. NIS associated with hull fouling include Anteaeolidiella foulisi and Megabalanus tintinnabulum. A number of NIS have been accidentally introduced via aquaculture activities, such as Celleporaria aperta, Celleporaria pilaefera, Crepidula fornicata and Gibbula cineraria, while Crassostrea gigas has been deliberately introduced. Species, which occur naturally in the Maltese Islands, but which have also been imported for aquaculture purposes include Ostrea edulis, Mytilus edulis, Mytilus galloprovincialis, Ruditapes (=Tapes) decussates, Dicentrarchus labrax, Sparus aurata, and Argyrosomus regius. The Maltese Islands are also important staging points for drilling platforms, and their occasional duration moored in coastal waters (can be for weeks), giving ample opportunity for movement of biota associated with the platform to inshore waters.

Shipping, including yachting, (either as hull fouling, ballast water or sea chest transportation) is the main activity responsible for the accidental introduction of NIS in Maltese waters, followed by aquaculture which has resulted in both deliberate and accidental introductions and aquarium trade. NIS recorded from ballast water tanks or for which ballast water transportation has been given as a possible mode of entry include for instance Callinectes sapidus, Eucidaris tribuloides, Fulvia fragilis and Prionocidaris baculosa, while in the case of Oplegnathus fasciatus, transportation in sea chests has been given as the most plausible mode of entry. NIS associated with hull fouling include Anteaeolidiella foulisi and Megabalanus tintinnabulum. A number of NIS have been accidentally introduced via aquaculture activities, such as Celleporaria aperta, Celleporaria pilaefera, Crepidula fornicata and Gibbula cineraria, while Crassostrea gigas has been deliberately introduced. Species, which occur naturally in the Maltese Islands, but which have also been imported for aquaculture purposes include Ostrea edulis, Mytilus edulis, Mytilus galloprovincialis, Ruditapes (=Tapes) decussates, Dicentrarchus labrax, Sparus aurata, and Argyrosomus regius. The Maltese Islands are also important staging points for drilling platforms, and their occasional duration moored in coastal waters (can be for weeks), giving ample opportunity for movement of biota associated with the platform to inshore waters.

• "Shipping & floating structures (all vessels
• Aquaculture
• NotReported

• "Shipping & floating structures (all vessels
• Aquaculture
• NotReported

• "Shipping & floating structures (all vessels
• Aquaculture
• NotReported

• "Shipping & floating structures (all vessels
• Aquaculture
• NotReported

For a significant part of NIS recorded from Maltese waters, the abundance, spatial distribution and establishment success, temporal occurrence and proportion of assessment area (%) where NIS are present are not known or could not be assessed in view of data limitations. So far documented records of NIS in Maltese waters present limited data, normally as a result of snapshot studies restricted to point locations, and providing information on year when found, accompanied by a theory/assumption on how it reached these waters. Quantitative data as well as data on impacts on native communities is more often than not lacking, with only recent published literature documenting new records providing quantification of abundance and mapping distributions (e.g. Sciberras & Schembri, 2008; Cilia & Deidun, 2012).

For a significant part of NIS recorded from Maltese waters, the abundance, spatial distribution and establishment success, temporal occurrence and proportion of assessment area (%) where NIS are present are not known or could not be assessed in view of data limitations. So far documented records of NIS in Maltese waters present limited data, normally as a result of snapshot studies restricted to point locations, and providing information on year when found, accompanied by a theory/assumption on how it reached these waters. Quantitative data as well as data on impacts on native communities is more often than not lacking, with only recent published literature documenting new records providing quantification of abundance and mapping distributions (e.g. Sciberras & Schembri, 2008; Cilia & Deidun, 2012).

For a significant part of NIS recorded from Maltese waters, the abundance, spatial distribution and establishment success, temporal occurrence and proportion of assessment area (%) where NIS are present are not known or could not be assessed in view of data limitations. So far documented records of NIS in Maltese waters present limited data, normally as a result of snapshot studies restricted to point locations, and providing information on year when found, accompanied by a theory/assumption on how it reached these waters. Quantitative data as well as data on impacts on native communities is more often than not lacking, with only recent published literature documenting new records providing quantification of abundance and mapping distributions (e.g. Sciberras & Schembri, 2008; Cilia & Deidun, 2012).

For a significant part of NIS recorded from Maltese waters, the abundance, spatial distribution and establishment success, temporal occurrence and proportion of assessment area (%) where NIS are present are not known or could not be assessed in view of data limitations. So far documented records of NIS in Maltese waters present limited data, normally as a result of snapshot studies restricted to point locations, and providing information on year when found, accompanied by a theory/assumption on how it reached these waters. Quantitative data as well as data on impacts on native communities is more often than not lacking, with only recent published literature documenting new records providing quantification of abundance and mapping distributions (e.g. Sciberras & Schembri, 2008; Cilia & Deidun, 2012).