2003 King et al. Anglesey Crassostrea records
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.
dataset
https://www.dassh.ac.uk/datasets/DASSHDT00000214
description: A link to the web service or dataset
name: DASSH website
description: A link to the general host site
DASSHDT00000214
http://www.dassh.ac.uk
eng
urn:ogc:def:crs:EPSG::4326
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.
biota
revision
2008-01-06
revision
2009-11-16
creation
2011-07-06
-4.8902
-3.9564
53.5362
53.0502
2003-06-01
2003-06-30
publication
2016-07-15
notPlanned
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.
publication
2012-12-19
true
Data is in a pro forma provided by DASSH
CC BY 4.0
DASSH terms and conditions apply
Ecologist
Bangor University School of Ocean Sciences
School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey,
Menai Bridge
LL59 5AB
originator
Data Manager
Data Archive for Seabed Species and Habitats (DASSH)
Marine Biological Association of the UK, The Laboratory, Citadel Hill
Plymouth
PL1 2PB
01752 633102
01752 633291
custodian
DASSH, The Archive for Marine Species and Habitat Data
pointOfContact
2021-03-15