Harmful microalgae blooms (HAB); problematic and conditions that induce them

HAB occurrence is becoming more frequent and problematic in marine recreational waters. However, the exploitation of the coastal area for recreational use is promoting the necessary conditions for the HAB increase. In terms of the harmful effects, we can consider two types of causative organism: the...

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Bibliographic Details
Published in:Marine pollution bulletin 2006-01, Vol.53 (10), p.620-630
Main Authors: Maso, Mercedes, Garces, Esther
Format: Article
Language:English
Subjects:
Animals
Anthropogenic factors
Ecosystem
Eutrophication - physiology
HAB increase
Harmful algae blooms
Humans
Marine
Nitrogen - pharmacology
Nutrients
Phosphorus - pharmacology
Phytoplankton - drug effects
Phytoplankton - pathogenicity
Phytoplankton - physiology
Population Dynamics
Seawater
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Summary:HAB occurrence is becoming more frequent and problematic in marine recreational waters. However, the exploitation of the coastal area for recreational use is promoting the necessary conditions for the HAB increase. In terms of the harmful effects, we can consider two types of causative organism: the toxic producers and the high-biomass producers. Toxic events can be produced by a very low concentration of the causative organism. This characteristic implies a difficulty for the monitoring programs in relation to human health. It is important to point out in the context of human health and HAB events, that in some coastal regions (e.g. the Mediterranean basin) HABs are an emerging problem. In these regions, the local population and visitors may face a health risk that is difficult to measure. The monitoring of toxic species has mainly been associated -with shellfish farming. However, the risk of intoxication could become even greater in areas not subject to legislation of aquaculture activities.
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2006.08.006