Project Summary/Abstract
The conference will be held October 11-16, 2020 in La Paz, capital of Baja California Sur, in Mexico. 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 2020 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, Pyrodinium, Gymnodinium 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 Basic Studies to
Future Applications”. 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.