4ec13a7dce11040af9bd9f710047679b English dataset Matt Arnold DASSH, The Archive for Marine Species and Habitat Data matarn@mba.ac.uk pointOfContact 2024-07-09 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2003 King et al. Anglesey Crassostrea records 2016-07-15 publication DASSHDT00000214 http://www.dassh.ac.uk Two sites in North Wales, UK, were compared for growth, survival, immunocompetence and gonad development of Crassostrea gigas. Juvenile C. gigas spat were purchased as a cohort and placed in bags on trestles at the Menai Strait (MS, two heights on the shore) and the Inland Sea (IS) in the summer of 2003. Performance was examined as a function of several environmental parameters; temperature, coloured dissolved organic material absorption coefficient (cDOM), organic and inorganic nutrient levels, chlorophyll a and phytoplankton community composition. Both sites produced variations in growth, as assessed by dry weight indices and condition index, which were found to be lower at IS, where the animals were permanently immersed, than at MS, where they were emersed for at least 1 h/tide (at the low shore height) and 4 h/tide (at the high shore height) during spring tides. Condition index was also significantly higher at MS high shore than at MS low shore. Mortality was low at all sites, though an increase at IS at the end of the trial led to a significantly greater final percentage mortality of 15.6%. Gonad development was limited, particularly at IS where most animals remained undifferentiated. Gonad development was significantly higher at MS high shore than at MS low shore. cDOM, organic and inorganic nutrients were similar at the two areas. At IS the temperature and chlorophyll a levels were higher than MS. The phytoplankton communities were significantly different, with a bloom of Prorocentrum micans dominating at the Inland Sea for much of the experimental period. Differences in the hydrodynamics, as well as Phytoplankton community appeared to be the only parameters that might cause a lower growth rate in the Inland Sea. The possibilities of P. micans having a sub-lethal effect on C. gigas are discussed. Jonathan King Bangor University School of Ocean Sciences Ecologist School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, Menai Bridge LL59 5AB 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 Shellfish abundance and biomass in water bodies SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Biodiversity GEMET 2011-07-06 creation CC BY NC otherRestrictions DASSH terms and conditions apply English biota -4.8902 -3.9564 53.0502 53.5362 2003-06-01 2003-06-30 King, J.W., Malham, S.K., Skov, M.W., Cotter, E., Latchford, J.W., Culloty, S.C. and Beaumont, A.R., 2006. Growth of Crassostrea gigas spat and juveniles under differing environmental conditions at two sites in Wales. Aquatic Living Resources, 19(3), pp.289-297. 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/10.17031/66840162600f2 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 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 Crassostrea. 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.