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MeetingMeeting document
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Book (series)Technical studyReport of the Expert Meeting on Ciguatera Poisoning
Rome, 19-23 November 2018
2020Also available in:
No results found.Phytoplankton blooms, micro-algal blooms, toxic algae, red tides, or harmful algae, are all terms for naturally occurring phenomena that have occurred throughout recorded history. About 300 hundred species of micro algae are reported at times to form mass occurrence, so called blooms. Nearly one fourth of these species are known to produce toxins. Even non-toxic algal blooms can have devastating impacts when they lead to kills of fish and invertebrates by generating anoxic conditions. Some algal species, although non-toxic to humans, can produce exudates that can cause damage to the delicate gill tissues of fish (raphidophytes Chattonella, Heterosigma, and dinoflagellates Karenia, Karlodinium) . Aquatic animals can suffer devastating mortalities, which could lead economical and food losses, and eventually became a food security problem. Of greatest concern to humans are algal species that produce potent neurotoxins that can find their way through shellfish and fish to human consumers where they evoke a variety of gastrointestinal and neurological illnesses (paralytic shellfish poisoning (PSP), amnesic shellfish poisoning (ASP), diarrhoeic shellfish poisoning (DSP), neurotoxic shellfish poisoning (NSP), azaspiracid shellfish poisoning (AZP) and ciguatera fish poisoning (CFP)). Worldwide, ciguatoxins are estimated to cause around 50 000 cases of ciguatera fish poisoning annually; neurological effects may last for weeks or even years and one percent of these cases are fatal . Climate change and costal water over enrichment create an enabling environment for harmful algal blooms, which seem to have become more frequent, more intense and more widespread in the past decades. -
ProjectProgramme / project reportProject for Sustainable Fisheries and Aquaculture Development
Support to NEPAD–CAADP Implementation
2006Also available in:
No results found.I.1. Fisheries is a key sector in the agricultural framework of Liberia as well as in the national economy. In 2002, fisheries contributed to 12% of agricultural GDP and 3.2% of the national GDP. Fisheries play a key role in the livelihoods of the coastal population, consisting of 15,000 to 20,000 families that use 2,500 boats approximately. The fisheries sector has vital roles in food security and economic growth nationally. I.2. The National Medium–Term Investment Programme in Agriculture an d Rural Development, prepared under the auspices of NEPAD during 2006, selected fisheries as one of the 10 national priorities, and retained a “Project to support sustainable fisheries and aquaculture development” as one of the three bankable investment projects that deserved a preference preparation. The profile of that project proposal is presented in the current document.