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 (International Oceanographic Data Exchange) Programme Office in Oostende, Belgium (see group picture in the back page), to receive training in data entry into the Ocean Biogeographic Information System (OBIS; http://www. iobis.org) and the Harmful Algae Event Database (HAEDAT; http://haedat.iode. org). Editors within defined HAB regions were requested to collect publications associated with the occurrences of toxic algae, even with no recorded impact, and enter these records in OBIS. The aim is to trace reliable geographic ranges for the genera/species that are included in the IOC Taxonomic Reference List of toxic and ichthyotoxic algae (http://www.marinespecies.org/hab). This activity will complement the compilation of records of harmful events with impacts (including cases of intoxicated seafood, discolorations, mucilages, etc.) collected in HAEDAT, with new event data being entered from regions for which this information is currently missing. The effort of compiling and increasing data sets is being intensified in order to provide a substantial part of the basis for a first Global HAB Status Report. This report series will provide the scientific community as well as decision makers with a reference on HAB occurrence and impacts on ecosystem services. IOC-UNESCO project partners include the International Atomic Energy Agency (IAEA), the International Council for Exploration of the Sea (ICES), the North Pacific Marine Science Organization (PICES) and the International Society for the Study of Harmful Algae (ISSHA). We hope that the establishment of these data bases will allow us to convincingly answer key questions on the probability of change in HAB frequencies, intensities, and geographic range resulting from environmental changes at local and global scales. While the available data sets are still incomplete, we here provide examples of analyses from HAEDAT (Figs. 1, 2, 4) and OBIS (Fig. 3) data. While the results are preliminary and conclusions are likely to be modified as more data become available, we present them as an encouragement for HAB workers to contribute to this important initiative. Content Call to Contribute to Global HAB Status Report . ........................ 1 Macroalgae, fish killers and PSP events Pelagic Sargassum risk to baby turtles in Caribbean Colombia .. 4 A red tide of Karenia mikimotoi in Scotland.......................................... 6 G. catenatum and high STX in oysters from Jalisco. México . ..... 8 HAB training and networking ICES-IOC Working Group on HAB Dynamics ................................. 10 SEAFDEC-MFRD Regional Training Course in Malaysia . ..... 11 Forthcoming Workshop on molecular methods for cysts in New Zealand ............. 12 ICES/IOC/IMO Working Group on Ballast and Other Ship Vectors . 12 HAB session at SETAC Europe Conference, Rome . ......................... 12 18th International Conference on Harmful Algae in Nantes ....... 13 In Memoriam Rex Munday . ..................................... 14 NEW! HABs and Desalination. IOC Manuals and Guides 78 ................4 COMING SOO Fig. 1. Total number of HAEDAT records in the different OBIS regions of East Coast America, West Coast America, Caribbean Central America, Northern Europe, Southern Europe, Mediterranean, Australia/New Zealand, North Asia and Pacific. The regions of South America, Africa and South East Asia represent key missing data sets. Data as of 1/3/2017. Compiled by Laura Schweibold who worked for 6 months on a GHSR Masters project supervised by G.Hallegraeff. N 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