2009-2016 Loxton et al., Distribution of the invasive bryozoan Schizoporella japonica in Great Britain and Ireland and a review of its European distribution

• Published by: Marine Environmental Data & Information Network
• Last updated: 02 August 2023
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

The bryozoan Schizoporella japonica Ortmann (1890) was first recorded in European waters in 2010 and has since been reported from further locations in Great Britain (GB) and Norway. This dataset provides a new earliest European record for the species from 2009. The presence records of Schizoporella japonica at 28 sites in Europe are reported only, out of the 231 sites surveyed through rapid assesment surveys. This species is typically associated with human activity, including commercial and recreational vessels, aquaculture equipment, and both wave and tidal energy devices. It has also been observed in the natural environment, fouling rocks and boulders. The species has an extensive but widely discontinuous distribution in GB and Ireland. Although found frequently in marinas and harbours in Scotland, it inhabits only a few sites in England, Wales and Ireland, interspersed with wide gaps that are well documented as genuine absences. This appears to be a rare example of a southward-spreading invasion in GB and Ireland. The species has been reported from the Isle of Man and Norway but has not been found in France or Portugal. In the future we expect S. japonica to spread into suitable sections of the English, Welsh and Irish coasts, and further within Europe. The species’ capability for long-distance saltatory spread and potential for negative impact on native ecosystems and economic activity suggests that S. japonica should now be considered invasive in GB and Ireland. As such, it is recommended that biosecurity procedures alongside effective surveillance and monitoring should be prioritised for regions outside the species’ current distribution.

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Related datasets

• 2010-2013 Ryland et al. UK first Schizoporella japonica records
• 2012 Nall et al. Scotland records of Bonnemaisonia hamifera, Crassostrea, Crepidula fornicata, Diadumene lineata, Didemnum vexillum, Sargassum muticum, Styela clava, Caprella mutica and Schizoporella japonica
• 2012 Nall et al. Scotland records of Bonnemaisonia hamifera, Crassostrea, Crepidula fornicata, Diadumene lineata, Didemnum vexillum, Sargassum muticum, Styela clava, Caprella mutica and Schizoporella japonica
• 2005-2006 Harries et al. Isle of Cumbrae Sargassum muticum records

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Link to the data	Format	File added	Data preview
DASSH website	N/A	02 August 2023	Not available
DOI Link	N/A	02 August 2023	Not available

Additional information

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• Added to data.gov.uk: 2023-07-27
• Access contraints: Open Access
• Harvest GUID: bf506aad71473fb19c94aafc2a24d955
• Extent: Latitude: 59.6073° to 49.7608°
• Extent: Longitude: -12.5794° to 2.1862°
• Spatial reference system: urn:ogc:def:crs:EPSG::4326
• Dataset reference date: 2017-04-28 (publication)
• Frequency of update: notPlanned
• Responsible party: University of the Highlands and Islands, Environmental Research Institute (originator); Data Archive for Seabed Species and Habitats (DASSH) (custodian)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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CC BY 4.0