Global Harmful Algal Blooms

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PROJECT TITLE: International Collaborative Study for the Validation of a HILIC-MS/MS Method for Analysis of Paralytic Shellfish Toxins and Tetrodotoxin in Live Bivalve Molluscs

Principal Investigator: Dr Andrew D. Turner

Address: Centre for Environment Fisheries and Aquaculture Science (Cefas)

Tel/Fax: +44 (0)1305 206636 / +44 (0)1305 206601

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Home page URL: https://www.cefas.co.uk/

Other key persons: Dr Tim Harwood, Cawthron Institute, New Zealand

Objectives: The aim of this project will be to conduct a Collaborative Study of the LC-MS/MS method for PSP toxins in shellfish, using a suitable number of international toxin testing laboratories. The work will require active collaboration with organisations worldwide to validate the method, ultimately demonstrating its fitness for purpose for official control testing. The final achievement will involve the delivery of an extensive data set, the publication of the collaborative study and ultimately the delivery of a formally-approved official method of analysis. 

The project will be conducted through a collaborative study lead by Dr Andrew Turner at Cefas together in partnership with Dr Tim Harwood at Cawthron Institute. Additional guidance and collaboration will be provided by the EURLMB. The project has been discussed with international collaborators and is supported by Prof Ana Gago-Martinez Director of the EURLMB and James Hungerford, USFDA and Co-chair of AOAC Marine Toxin Task Force. 

 

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PROJECT TITLE: Effects of climate changes on harmful algal and cyanobacterial blooms along the South Atlantic Ocean

Principal Investigator: Dr Márcio Silva de Souza

Address: Oceanography Institute (Federal University of Rio Grande - FURG), Italia Av., km-8, Carreiros, PO Box. 474, Rio Grande (Rio Grande do Sul), Zip Code: 96203-900

Tel/fax: +5553-32336737

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Other key persons: Dr. João Sarkis Yunes*

Dr. José Henrique Muelbert*

Address: Oceanography Institute (FURG), Italia Av., km-8, Carreiros, PO Box. 474, Rio Grande (Rio Grande do Sul), Zip Code: 96203-900

Tel/fax: +5553-32336737

 

Objectives: Global warming effects, including the contribution of several anthropic activities such as the burning of fossil fuels and deforestation, can affect biomes and many physical and chemical features of the oceans. These effects over the dynamics and structure of phytoplankton (including cyanobacteria) are not yet well understood. However, shifts in duration and frequency of meteorological events have been associated with the increasing in harmful algal blooms (HABs) across many coastal regions worldwide. This proposal aims at assessing direct and indirect effects of climate changes over these phytoplankton blooms in the Atlantic Ocean (between 0º35ºS), taking into account environmental database analysis combined with notifications of HABs in Brazil and, also, further lab experiments with target species that form known HABs. As far as possible, there will be compiled physical, meteorological and hydrographical information as well phytoplankton data across the study region since 1970s. With this dataset, we will evaluate the spatial and temporal environmental variability linking to bursts of HABs. Also, we intend to build predictive models of these biological events for the Brazilian coast and to carry on bioassays with certain strains of HAB obtained in some local laboratories. Temperature and nutrient concentration (nitrate, phosphate) are the variables chosen a priori to be tested. This project is being conducted at the Oceanography Institute of the Federal University of Rio Grande (Brazil) as my pos-doc fellowship research.

 

Map of the study area showing (a) cities at the west margin of the Patos Lagoon system, where patches (two red ellipses) of Microcystis spp. have been notified; (b) patches of Microcystis spp. (inside of red circle) seen on 02 February 2017, retrieved from Landsat-8 Enhanced Thematic Map plus (ETM+; https://eros.usgs.gov/satellite-imagery)  Map of the study area showing (a) cities at the west margin of the Patos Lagoon system, where patches (two red ellipses) of Microcystis spp. have been notified; (b) patches of Microcystis spp. (inside of red circle) seen on 02 February 2017, retrieved from Landsat-8 Enhanced Thematic Map plus (ETM+; https://eros.usgs.gov/satellite-imagery).

 

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