8d6ca7f4f37548e3b8a1dcbd7780e30f 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 2024-07-02 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2006 Tweedy et al. Salcombe Sargassum muticum records 2016-07-15 publication DASSHDT00000215 http://www.dassh.ac.uk The first reports of Sargassum muticum occurring in British waters coincided with a warning that this invasive alga may replace seagrass beds, particularly those of Zostera marina. Initial fears were allayed when subsequent research suggested that both species required different attachment substrata, and, therefore, S. muticum would be unable to replace Zostera beds on soft sediments. Here, however, we present evidence supporting the original warning: contrary to previous research we found that S. muticum is able to successfully colonise soft sediments and, furthermore, that the presence of Z. marina may aid attachment. The majority of S. muticum plants within Zostera beds studied at Salcombe, SW England, were found attached within the soft sediment; outside of the seagrass bed, however, this occurred in greatly reduced numbers. Therefore, we suggest that the presence of Z. marina may actually enhance S. muticum colonization of soft sediments, trapping drifting fragments and allowing viable algae to settle on the seagrass matrix in an otherwise unfavorable environment. The consequences for the invasion of seagrass beds by S. muticum may therefore be more severe than previously thought. Martin J. Attrill University of Plymouth mattrill@plymouth.ac.uk originator James Tweedy Marine Institute, University of Plymouth Ecologist 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 Biodiversity GEMET 2011-07-06 creation Macroalgae and seagrass taxonomy-related counts SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision CC BY 4.0 otherRestrictions Open Access English biota -3.8795 -3.6735 50.1724 50.3603 2006-03-01 2006-03-31 Tweedley, J., Jackson, E.L. and Attrill, M.J., 2008. Zostera marina seagrass beds enhance the attachment of the invasive alga Sargassum muticum in soft sediments. Marine Ecology Progress Series, 354, pp.305-309. 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/10.17031/66827cbb29052 DOI link A link to the web service or dataset http://https://www.dassh.ac.uk/ A link to the general host site dataset MEDIN data guideline for ad hoc sightings 2012-12-19 publication Data is in a pro forma provided by DASSH true 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 Sargassum muticum. 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.