e8f36859e456c7354a17680fe9ff9911 English dataset Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk pointOfContact 2024-06-25 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2010-2013 Ryland et al. UK first Schizoporella japonica records 2014-12-31 publication 2013-01-31 creation 2013-01-31 revision DASSHDT00000187 http://www.dassh.ac.uk Schizoporella japonica Ortmann was described from Japan but was subsequently introduced on Pacific oysters to the Pacific coast of North America, where it is now well established. In this paper we record it for the first time in European waters. The initial discovery was in a marina at Holyhead, North Wales, in July 2010 but S. japonica has since been observed abundantly in the Orkney Islands (from May 2011) and, subsequently, at other localities in northern Scotland. Introduction seems most likely to have been on an ocean-going vessel. The British material is here fully described and illustrated with SEMs and colour photographs; some unusual characters are discussed. Unlike other recently introduced bryozoans, S. japonica is a cold-water species and its breeding season in Britain extends through the winter. Extensive confusion between this and other species of Schizoporella on the west coast of Canada and the USA led us to make thorough morphometric comparisons between the species concerned (Schizoporella unicornis (Johnston in Wood), Schizoporella errata (Waters) and Schizoporella pseudoerrata Soule, Soule and Chaney). Zooid size in cheilostomate bryozoans is variable and often an unreliable character for species separation but shape (and therefore ratios between variables,which are independent of size) are often valuable: S. japonica zooids have a much greater length:width ratio than the other species. Density of frontal pseudopores provides a useful discriminatory character. Schizoporella unicornis, repeatedly reported in error from the Pacific coast of North America, does not occur there; it is a European species. Full comparisons are made between S. japonica and S. unicornis for European identification and between S. japonica, S. errata and S. pseudoerrata (which are also illustrated) for North American localities. John S. Ryland University of Wales Swansea, Natural Sciences Singleton Park Swansea SA2 8PP dassh.enquiries@mba.ac.uk originator Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk custodian notPlanned Delimited Marine Environmental Data and Information Network NDGO0005 Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Zoobenthos generic abundance SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Biodiversity GEMET 2011-07-06 creation CC BY 4.0 otherRestrictions Open access English biota Charting Progress 2 Sea Areas 2009-06-18 creation Western Channel and Celtic Sea Charting Progress 2 Sea Areas 2009-06-18 creation Irish Sea Charting Progress 2 Sea Areas 2009-06-18 creation Northern North Sea Charting Progress 2 Sea Areas 2009-06-18 creation Minches & Western Scotland -4.1266 -1.9074 58.5789 59.5948 -5.0495 -3.9234 53.0733 53.5133 2010-07-01 2013-01-31 Data Archive for Seabed Species and Habitats (DASSH) Data Manager 01752 633102 01752 633291 Marine Biological Association of the UK, The Laboratory, Citadel Hill Plymouth PL1 2PB dassh.enquiries@mba.ac.uk distributor https://doi.org/10.17031/666869f77647f DOI link A link to the web service or dataset http://https://www.dassh.ac.uk/ DASSH website A link to the general host site dataset Part of MSFD NNS baseline data collation project (Jan 2016). Subset of a dataset as we were only pulling out records for a selection of INNS. Contains records for Schizoporella japonica. If any sensitive species or biotope records are present within this dataset, they will have been removed. If you wish to request access to sensitive species records, please contact the metadata contact. The UK Sensitive Species list has been agreed by UK statutory bodies and relevant experts. It can be viewed here https://docs.nbnatlas.org/sensitive-species-list/. Please note sensitive species lists can vary across the UK. See DOI:10.11646/zootaxa.3780.3.3 for original source.