4766ae6c8202bb2771208375ec328d89 English dataset Matt Arnold DASSH, The Archive for Marine Species and Habitat Data matarn@mba.ac.uk pointOfContact 2024-07-15 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2001 Castro-Longoria, E. Southampton Water Acartia tonsa records 1996-12-31 publication DASSHDT00000196 http://www.dassh.ac.uk Eggs produced by four Acartia species from the Solent-Southampton Water estuarine system were examined. Acartia tonsa produced two morphologically distinct types of eggs, which were identified as subitaneous and diapause. Diapause eggs from this species were spiny while the subitaneous form had a relatively smooth chorion surface; a second subitaneous egg was produced by A. tonsa, which had significant spine extensions on the surface. Acartia margalefi, A. discaudata, and A. clausiproduced only smooth eggs, which were identified as subitaneous. Observations under scanning electron microscopy (SEM) revealed consistent interspecific variations in the texture of the chorion surface of both subitaneous and diapause eggs in all species. Ernestina Castro-Longoria National Oceanography Centre (NOC), Southampton Researcher 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 Microzooplankton generic abundance in water bodies SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision CC BY NC otherRestrictions DASSH terms and conditions apply English biota Charting Progress 2 Sea Areas 2009-06-18 creation Eastern Channel Charting Progress 2 Sea Areas 2009-06-18 creation Western Channel and Celtic Sea -1.5723 -1.1040 50.7572 50.9653 1996-01-01 1996-12-31 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/10.17031/66841060087fa DOI link A link to the web service or dataset http://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 Acartia tonsa. '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 Castro-Longoria, E. (2001). Comparative observations on the external morphology of subitaneous and diapause eggs of Acartia species from Southampton water. Crustaceana, 74(3), 225-236. https://doi.org/10.1163/156854001505479 for original source.