SF424 Other Project Information
Project Summary/Abstract –
The 18th International Conference on Harmful Algae (ICHA) will take place in Nantes, France, from 21-26
October 2018. This conference is held every two years, and is the only major international scientific
event focused on the research and management of harmful algae events. Typically, there are 500-600
participants from 50 – 60 countries.
Harmful algal blooms (HABs) are a major natural disturbance in marine and freshwater ecosystems that
impact public health, fish and shellfish consumers and producers, drinking water supplies, and
ecosystems in affected regions. The ICHA 2018 scientific program will foster discussions among HAB
researchers and managers from around the world, thereby facilitating collaborations among participants
within and across disciplines for the advancement of the HAB field. While the major causative organisms
of multiple human poisoning syndromes (e.g., the genera Alexandrium, Dinophysis, and Pseudo-nitzschia
for marine systems, and Anabaena, Aphanizomenon and Microcystis for freshwater systems) continue to
thrive in our waters, significant advances have been made in monitoring for these species and their
toxins and in managing their human health and economic impacts, which are indeed diverse. Among the
human health problems are the paralytic, diarrhetic, amnesic, neurotoxic, and azaspiracid shellfish
poisoning syndromes (PSP, DSP, ASP, NSP, and AZP respectively, as well as ciguatera fish poisoning (CFP)
and a range of poisoning problems cause by freshwater cyanobacteria. Over the last few decades,
however, environment and anthropogenic stressors have increased, driving significant changes in our
coastal and freshwater systems. Therefore, our ability to detect and manage impacts from novel or
emerging organisms and their toxins is of critical importance, as is the need to manage the more
established problems. The societal impacts of harmful algae are multiple and do not simply concern
fisheries and aquaculture and human health, but increasingly affect other sectors, including tourism,
shipping, desalination, and renewable energy supplies. Therefore, there is a continuing need to translate
fundamental science into knowledge to help overcome these significant and growing societal challenges.
This goal is reflected in the theme of this conference “From Ecosystems to Socio-ecosystems”. Multiple
thematic sessions will showcase important scientific advances and highlight impacts of harmful algae in
a world of rapid change and complex interactions. Participation by scientists and managers from dozens
of countries around the globe, especially developing countries, will facilitate the exchange of
information on recent advances and foster international strategies for mitigating the effects of HABs.