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New service to help monitor toxic species in marine waters
January 25, 2006University of Liverpool scientists have launched a new website to help environmental agencies and marine industries identify harmful organisms in UK coastal waters.
The website, called the Harmful Plankton Project, will help experts and non-experts identify harmful algal blooms (HAB), which can pose a threat to both human health and businesses, such as fisheries and aquaculture.
Dr David Montagnes, a marine biologist in the School of Biological Sciences, said: "Phytoplankton, such as dinoflagellates and diatoms, produce potent toxins and can pose a considerable public health risk, as they may accumulate in shellfish, which we eat. Identification of these species is very difficult, as the differences between harmful and beneficial phytoplankton can be minute. The guide, which includes an illustrated database, helps us identify these algae."
Shellfish are often not visibly affected by harmful algae, but they accumulate algal toxins in their organs. The toxins become a threat to humans when shellfish are consumed. Many of these toxins cannot be detected by taste and are not generally reduced in potency after cooking. Those affected can suffer with diarrhoea, memory loss or paralysis. To reduce the risk of serious seafood poisoning, monitoring of phytoplankton is required in marine areas that are frequently harvested.
Dr Montagnes added: "We are also working on another site which will allow users to input the characteristics of a species-for example, their colour and shape-and the site will automatically identify the species. This is particularly useful for fisheries, aquacultures and health services so that algae can be monitored and sufficient warnings about fishing and swimming in the area can be established."
University of Liverpool
Moths cloaked in color
Travelers to the neotropics-the tropical lands of the Americas-might be forgiven for thinking that all of the colorful insects flittering over sunny puddles or among dense forest understory are butterflies.
Tiny but toxic: MBL researchers discover a mechanism of neurodegeneration in Alzheimer's disease
Tiny, toxic protein particles severely disrupt neurotransmission and inhibit delivery of key proteins in Alzheimer's disease, two separate studies by Marine Biological Laboratory (MBL) researchers have found.
Scientists discover age-regulated cellular activities that protect against protein aggregation
Alzheimer's disease now strikes more than one in 30 Americans, and about half the population that lives past 85 acquires Alzheimer's.
New research points toward mechanism of age-onset toxicity of Alzheimer's protein
Like most neurodegenerative diseases, Alzheimer's disease usually appears late in life, raising the question of whether it is a disastrous consequence of aging or if the toxic protein aggregates that cause the disease simply take a long time to form.
Poison dart frog mimics gain when birds learn to stay away
Studying neotropical poison dart frogs, biologists at the University of Texas at Austin uncovered a new way that the frog species can evolve to look similar, and it hinges on the way predators learn to avoid the toxic, brightly colored amphibians.
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