Global Harmful Algal Blooms

Benthic HABs

New tools are necessary to manage and mitigate the impacts of benthic blooms on human health and the environment.

P.T. Lim, University of Malaya

L. Escalera, SZN

HABs and Aquaculture 

The oyster farms are susceptible to algal biotoxin contamination and blooms that have direct lethal effects on the shellfish

Cawthron Institute

Observation, Modelling and Prediction

New capabilities in observation and modelling will improve the detection and prediction of HABs

O. Wade, Hawkes Bay Regional Council

Biodiversity and Biogeography

Combining modern and classic taxonomy tools and long time series will contribute to identify the factors that determine the changing distribution of HAB species and their genetic variability.

C. Whyte, SAMS

Freshwater HABs and Cyanobacterial HABs
Coordination will help to develop a global perspective in advancing the science and management of freshwater HABs, and cyanobacterial HABs in marine, brackish and freshwater habitats

M. Burford, Griffith University

One Health
The most efficient way to protect human and animal health is to prevent exposure to contaminated sea products.

Washington State Department of Health

In the broader picture GlobalHAB contributes to improved management of HABs as an ocean hazard through improved preparedness and early warning systems contributing to UN Sustainable Development Goal 11, target 11.5 and Priority 4 and Global target 7 of the Sendai Framework on Disaster Risk Reduction (UNISDR) 2015-2030.


Global Harmful Algal Blooms - GlobalHAB - an international science programme on HABs building on the foundations of GEOHAB

  • Science and Implementation Plan

An international programme sponsored jointly by the Scientific Committee on Oceanic Research (SCOR) and the Intergovernmental Oceanographic Commission (IOC) of UNESCO

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Workshop on “Advances and challenges for understanding physical-­biological interactions in HABs in Stratified Environments” Monterey Bay Aquarium Research Institution Moss Landing, California, USA21‐23 August 2012


Scientific Committee

Margaret McManus, University of Hawaii at Manoa (GEOHAB)

Francisco Chávez, MBARI

Hidekatsu Yamazaki, Tokyo University of Marine Science and Technology

John Ryan, MBARI

Oliver Ross, Unitat de Tecnologia Marina, CSIC, Barcelona (GEOHAB)

Elisa Berdalet, Institut de Ciències del Mar, CSIC, Barcelona (GEOHAB SSC Vice‐chair)

Full anouncement here

More information: Margaret A. McManus (This email address is being protected from spambots. You need JavaScript enabled to view it.This email address is being protected from spambots. You need JavaScript enabled to view it.This email address is being protected from spambots. You need JavaScript enabled to view it.This email address is being protected from spambots. You need JavaScript enabled to view it.

This activity is part of the Core Research Project (CRP) on Stratified Systems (GEOHAB, 2008). It is meant to be a platform to develop future international research and, as such, it fits GEOHAB’s mandate.

Why this workshop? The CRP on Stratified Systems concentrates on the fine scale distribution of microalgae ­without losing sight of the mesoscale environment –in stratified environments. In those conditions, specific phytoplankton communities containing HABs have been observed to occur in thin layers. In the last 20 years, investigations have been undertaken to further our understanding of the biological and physical mechanisms involved in the formation, maintenance, and dissipation of thin layers. Research has been focused on the relevance of physical microstructure for fundamental life processes of microorganisms (nutrient and light availability, reproduction, life cycle, ecologic interactions) and the relevance of thin layers for HABs. Advances in this area have strongly depended on the development of innovative instruments to observe and adequately sample these environments, as well as advanced numerical models.

Goal. The goal of the workshop is to review our current understanding of the processes governing the structure and dynamics of HABs in stratified systems. We aim to identify gaps in our knowledge in order to orient future research for their improved modelling and prediction. The workshop is designed for engineers, physicists, biologists, and modellers, who work -or have worked -on the various aspects of phytoplankton dynamics in stratified systems and can thus contribute to provide a multidisciplinary understanding of this phenomenon. The main themes addressed in the workshop include - among others physical measurements at small scales, biological-physical interactions across scales, calculation of biological rates, and the incorporation of this knowledge into numerical models that span from small- to regional-scale models.

Outcomes of the workshop: We hope to emerge from this meeting with a conceptual model or ‘roadmap’ of where biological, physical, and chemical measurements of Harmful Algal Blooms in stratified systems should be headed during the next 10 years, as well as a manuscript synthesizing the findings from this meeting. We are hopeful that this setting will also lead to collaborative proposals to conduct a multidisciplinary field experiment addressing this subject. These proposals would most likely involve international collaborations. Given that the workshop will be held in August 2012, the outcomes of the meeting will be ready for the synthesis meeting of GEOHAB (April 2013). The sessions of the program with their plenary speakers are summarized in the following page. The duration and number of presentations within each session will be determined by level of participation.