the first of which will be launched in Nantes. Follow the development of the Global HAB Status Report at http://haedat. iode.org/ and see who is involved and how you may engage. Acknowledgements We thank Ward Appeltans and Pieter Provoost at the IOC/IODE Project Office for hospitality and technical support. The meeting was funded by the Flanders Government through the Ocean Teacher Global Academy and DIPS-4ocean assessments projects. Fig. 2. Partitioning of 5136 global HAEDAT events into seafood toxins, high biomass water discolorations, fauna mass mortalities, and the further breakdown of seafood toxins into DSP, PSP, ASP, NSP, CFP, AZP and cyanotoxins. Data as of 1/3/2017. Compiled by Laura Schweibold. Different regions and countries suffer from different types of HABs, and this is reflected in the way countries/ regions enter their data. North America and Europe operate highly sophisticated shellfish toxin monitoring programs. PSP is the dominant seafood toxin syndrome in North America, NSP in the Gulf of Mexico and DSP in Europe. The effectiveness of these monitoring programmes is well reflected in the fact that only an estimated 1 to 10% of toxin-producing blooms lead to human poisonings. In contrast in less well monitored areas such as Australia/New Zealand and Central America up to 50 to 60% of toxin producing algal bloom events can lead to human victims. In the extreme, Pacific HAEDAT data are based exclusively on human ciguatera poisonings diagnosed by medical practitioners. OBIS HAB species occurrence data are even more incomplete, and heavily biased by European records. Time series data for location records of the key target genera Dinophysis and Pseudo-nitzschia (Fig. 3) exhibit an increase in frequency over the past 30 years, undoubtedly reflective of increased awareness and monitoring effort. The ICES-IOC Working Group on Harmful Algal Bloom Dynamics (WGHABD) have used HAEDAT to map the distribution of harmful algal events during the period from 2014 to 2016 in the North Atlantic. Examples for PSP, DSP and AZP are presented in Fig 4. These maps highlight the regional aspect to harmful algal events in the North 2 Atlantic area with PSP events recorded across the USA, Canada and Europe during the three year period, a higher incidence of DSP events recorded in Europe, and AZP events restricted to the SW coast of Ireland with a low number also recorded in the UK and Norway. Planned outputs of the Global HAB Status Report include: (1) a dedicated session during ICHA18 in Nantes in October 2018; (2) a special issue of Harmful Algae in 2019; (3) regular 2-3 year reports on the status of global HABs, Authors Gustaaf Hallegraeff , Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia Eileen Bresnan, Marine Scotland Marine Laboratory, 375 Victoria Road, Aberdeen, AB11 9DB, United Kingdom Henrik Enevoldsen, IOC Science and Communication Centre on Harmful Algae, University of Copenhagen, 2100, Copenhagen, Denmark Laura Schweibold, Universite de Bretagne Occidentale, Institut Universitaire Europeen de la Mer, 29280 Plouzane, France Adriana Zingone,,Stazione Zoologica Anton Dohrn Villa Comunale 80121 Napoli, Italy E-mail: Hallegraeff@utas.edu.au Dinophysis spp. n=92,437 Dinophysis spp. n=92,437 DSP DSP Pseudo-nitzschia spp. n=101,129 Pseudo-nitzschia spp. n=101,129 ASP ASP Fig. 3. Time series of OBIS location records of the HAB genera Dinophysis and Pseudonitzschia between 1950 and 2014, with the time of description of their associated syndromes DSP and ASP indicated. Records are heavily biased towards Europe. HARMFUL ALGAE NEWS NO. 58 / 2017 Harmful Algae News An IOC Newsletter on Toxic Algae and Algal Blooms No. 58 - November 2017 www.ioc-unesco.org/hab Call to Contribute to Global Harmful Algal Bloom Status Reporting From 25 to 28 September 2017 sixteen HAB experts from 13 countries gathered at the headquarters of the IOC IODE (Inte the first of which will be launched in Nantes. Follow the development of the Global HAB Status Report at http://haedat. iode.org/ and see who is involved and how you may engage. Acknowledgements We thank Ward Appeltans and Pieter Provoost at the IOC/IODE Project Office for hospitality and technical PSP# # # # # # DSP# # # # # # AZP# ! ! ! Fig. 4. Maps showing the incidence of PSP, DSP and AZP during the period 2014 to 2016 in the North Atlantic as reported by the ICES-IOC WG HABD. Areas such as Northern Canada and Greenland are not routinely sampled and countries with pink borders have sti Pelagic Sargassum reaching Serranilla Bank, Caribbean Colombia, may pose a risk to baby turtles Fig. 1. Location of Serranilla Bank in the Caribbean Sea (Photo Wikipedia) Floating Sargassum has been known from centuries to occur in the Atlantic Ocean, in a region named the Sargasso Sea. Floating S NEW!! Harmful Algal Blooms (HABs) and Desalination: A Guide to Impacts, Monitoring, and Management Manuals and Guides 78 Harmful Algal Blooms (HABs) and Desalination: A Guide to Impacts, Monitoring, and Management Fig. 3. Sargassum accumulation as a thick mat on the nesting beach Edited by: Dona A red tide event associated with the dinoflagellate Karenia mikimotoi in the Firth of Clyde, Scotland Fig. 1. Maximum abundance of K. mikimotoi by month and year for monitoring sites in Scottish coastal waters. The densest bloom observed exceeded 4 million cells per litre in July 2016. The potenti Fig. 5. Theoretical effect of the K. mikimotoi bloom on background dissolved oxygen concentration (black horizontal dashed line: Firth of Clyde summer averaged SEPA data 2005-2015). Cell density was sufficient to cause hypoxia on 3 occasions at 4.59mg L-1[8] or once at 2mg L-1 (grey dashed lines). A First evidence of high saxitoxin concentration in Crassostrea iridiscens associated with Gymnodinium catenatum blooms at Banderas Bay, Jalisco México Fig. 1. Location of sampling stations in Banderas Bay Jalisco México during Gymnodinium catenatum bloom from March to June of 2017. Banderas Bay has Fig. 2. High saxitoxin concentration in Crassostrea iridiscens associated with Gymnodinium catenatum blooms in Banderas Bay, Jalisco México. Fig. 4. Micrographs of live cells of Gymnodinium catenatum from Banderas Bay at 400x (a) and 200x (b); Seawater discoloration due to a G. catenatum patch duri ICES-IOC Working Group on Harmful Algal Blooms Dynamics The report of the International Council for the Exploration of the Sea (ICES) and Intergovernmental Oceanographic Commission of UNESCO (IOC) Working Group on Harmful Algal Bloom Dy namics (ICES-IOC WGHABD) is now available on the ICES website ( SEAFDEC-MFRD Regional Training Course in Malaysia Harmful algal blooms (HAB) and their socio-economic impacts are recognized internationally due to the negative impacts from HABs on the the coastal ecosystem, safety and security of food and drinking water, and human health hazards. Some incidents an Forthcoming events Workshop on morpho-molecular methods for the study of dinoflagellate cysts ICES-IOC-IMO Working Group on Ballast and Other Ship Vectors 5-7 March 2018 Monday 12th and Tuesday 13th February 2018 Location: Cawthron Institute, 98 Halifax Street East, Nelson 7010, New Zealand Organi the 18th international conference on harmful algae from ecosystems to socio-ecosystems SAVE the date! FATMA GUELLATI/UPMC-UNIV BADJI MOKHTAR Minyvel Environnement/Phenomer Nicolas Chomérat/IFREmer Véronique Séchet/IFREmer Olivier BARBAROUX/IFREmer Stéphane LESBATS/IFREmer Olivier DUG Rex Munday in Memoriam Dr Rex Munday, an internationally renowned toxicologist, sadly passed away on the 20th July this year. His wife Christine, daughter Sarah (Finch) and son John were with him. Rex published with all his family at different times, an example being the paper Munday, Munday and Mun Rex Mundays HAB research highlights Discovery of Tetrodotoxin in grey side-gilled sea slugs: Rex had a sharp wit, best illustrated with an anecdote from 2013. We had collected hundreds of samples to explain why dogs were dying on Auckland beaches and sent twelve to Rex for toxicity screening using l ! Oostende OBIS/HAEDAT training workshop participants. Eds-in-chief Beatriz Reguera, IEO, Vigo, Spain Eilen Bresnan, MARLAB, Scotland, UK Regional Editors Caribbean: Ernesto Mancera jemancerap@unal.edu.co Europe: Philip Hess Philipp.Hess@ifremer.fr India: K.B. Padmakumar kbpadmakumar@gmail.c