Shellfish Safety
http://hdl.handle.net/10793/1263
2024-03-28T18:35:14Z
2024-03-28T18:35:14Z
Creating a weekly Harmful Algal Bloom bulletin
Leadbetter, A.
Silke, J.
Cusack, C.
http://hdl.handle.net/10793/1344
2019-08-30T08:39:28Z
2018-01-01T00:00:00Z
Creating a weekly Harmful Algal Bloom bulletin
Leadbetter, A.; Silke, J.; Cusack, C.
This document describes the procedural steps in creating an information product focused on toxic and harmful phytoplankton. The product is an online Harmful Algal Bloom (HAB) bulletin for aquaculturists, who can face serious operational challenges in the days after a HAB event. Data from satellite, numerical hydrodynamic models and In-situ ocean observations are organised and presented into visual information products. These products are enhanced through local expert evaluation and their interpretation is summarised in the bulletin. This document aims to provide both process overviews (the “what” of the Best Practice in producing the bulletins) and detail procedures (the “how” of the Best Practice”) so that the bulletins may be replicated in other geographic regions.
This work received support and funding from
• The BOHAB project (Biological Oceanography of Harmful Algal Blooms off the west coast of Ireland) through the National Development Plan 2000 – 2006 with the support of the Marine Institute and the Marine RTDI (Research, Technology, Development and Innovation) Measure, Productive Sector Operational Programme, Grant-aid Agreement No. ST/02/01.
• the ASIMUTH project (Applied simulations and Integrated modelling for the understanding of toxic and harmful algal blooms) through the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) for Research and Technological Development - EC FP7 Programme, Space Theme, Grant Agreement No. 261860
• the MyOcean 2 project through the EC FP7 Programme, Space Theme, Grant Agreement No. 283367
• the AtlantOS project through the European Union's Horizon 2020 research and innovation programme, Grant Agreement No. 633211
• The PRIMROSE (Predicting the impact of regional scale events on the aquaculture sector) project, co-financed by the European Regional Development Fund through the Interreg Atlantic Area Programme, EAPA_182/2016
• The CoCliME (Co-development of climate services for adaptation to changing marine ecosystems) project is part of the European Research Area for Climate Services (ERA4CS), an ERA-NET initiated by JPI Climate, and funded by EPA (IE), ANR (FR), BMBF (DE), UEFISCDI (RO), RCN (NO) and FORMAS (SE), with co-funding by the European Union (Grant Agreement No. 690462).
2018-01-01T00:00:00Z
The shellfish industry in the Netherlands: organization and regulation
Hagel, P.
Dijkema, R.
http://hdl.handle.net/10793/1298
2019-08-30T08:39:09Z
1995-01-01T00:00:00Z
The shellfish industry in the Netherlands: organization and regulation
Hagel, P.; Dijkema, R.
1995-01-01T00:00:00Z
Use of LC-MS testing to identify lipophilic toxins, to establish local trends and interspecies differences and to test the comparability of LC-MS testing with the mouse bioassay: an example from the Irish biotoxin monitoring programme 2001
Hess, P.
McMahon, T.
Slattery, D.
Swords, D.
Dowling, G.
McCarron, M.
Clarke, D.
Gobbons, W.
Silke, J.
O'Cinneide, M.
http://hdl.handle.net/10793/1292
2019-08-30T08:39:13Z
2003-01-01T00:00:00Z
Use of LC-MS testing to identify lipophilic toxins, to establish local trends and interspecies differences and to test the comparability of LC-MS testing with the mouse bioassay: an example from the Irish biotoxin monitoring programme 2001
Hess, P.; McMahon, T.; Slattery, D.; Swords, D.; Dowling, G.; McCarron, M.; Clarke, D.; Gobbons, W.; Silke, J.; O'Cinneide, M.
During 2001, the Marine Institute has extended its range of chemical tests to include the analysis of DSP toxins by Liquid Chromatography coupled to Mass Spectrometry (LC-MS). Thus the range of compounds determined extends from domoic acid over DSP compounds (okadaic acid and DTXs) to azaspiracids (AZAs). These tests complement the mouse bioassay, which is the current reference method for lipophilic toxins within the European Community. The development and performance characteristics of the LC-MS method are discussed. Isomer patterns and interspecies differences are discussed as well as local trends in time and variability at one production site at a given time. Comparison of the LC-MS results with the results from the mouse bioassay showed good agreement (93%), and a small but significant number of discrepancies (7%). Overall, the chemical testing has proven to be an invaluable tool in the assessment of shellfish toxicity in Ireland. Lacks of standards and reference materials are discussed as well as the need for further research into the equivalence of methods.
Copyright © 2003 P. Hess et al. Released with the permission of UNESCO IOC from http://unesdoc.unesco.org/images/0021/002189/218973E.pdf
2003-01-01T00:00:00Z
Establishing boundary classes for the classification of UK marine waters using phytoplankton communities
Devlin, M.
Best, M.
Coates, D.
Bresnan, E.
O'Boyle, S.
Parke, R.
Silke, J.
Cusack, C.
Skeats, J.
http://hdl.handle.net/10793/1283
2019-08-30T08:39:13Z
2007-01-01T00:00:00Z
Establishing boundary classes for the classification of UK marine waters using phytoplankton communities
Devlin, M.; Best, M.; Coates, D.; Bresnan, E.; O'Boyle, S.; Parke, R.; Silke, J.; Cusack, C.; Skeats, J.
This paper presents a description of three of the proposed phytoplankton indices under investigation as part of a classification framework for UK and ROI marine waters. The three indices proposed for the classification process are (i) phytoplankton biomass measured as chlorophyll, (ii) the frequency of elevated phytoplankton counts measuring individual species and total cell counts and (iii) seasonal progression of phytoplankton functional groups through the year. Phytoplankton biomass is calculated by a 90th percentile measurement of chlorophyll over the growing season (April to September) compared to a predetermined reference value. Calculation of functional groups and cell counts are taken as proportional counts derived from the presence of the indicator species or group as compared to the total phytoplankton count. Initial boundary conditions for the assessment of high/good status were tested for each index. Chlorophyll reference conditions were taken from thresholds developed for previous EU directives with the setting of offshore concentrations as a reference condition. Thresholds for elevated counts of phytoplankton taxa were taken from previous EU assessments describing counts that could be impact negatively on the environment. Reference seasonal growth curves are established using phytoplankton counts from ‘‘high status’’ waterbodies.
To test the preliminary boundaries for each index, a risk assessment integrating nutrient enrichment and susceptibility for coastal and transitional waters was carried out to identify WFD waterbodies in England and Wales at different levels of risk. Waterbodies assessed as having low or medium risk from nutrient enrichment were identified as type 1 and type 2 waterbodies, and waterbodies assessed as high risk were identified as type 3 waterbodies. Phytoplankton data was extracted from the risk assigned waterbodies and applied to each phytoplankton index to test the robustness of the preliminary classification ranges for each phytoplankton index.
Peer-reviewed. Released with a Creative Commons Attribution Non-Commercial No Derivatives License
2007-01-01T00:00:00Z