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Golden Algae: They Hunt, They Kill, They Cheat

By Guest PostJanuary 23, 2013Scienceachilles heel, basic functioning, behavior, carnivorous plants, cheaters, cheating behavior, chemical warfare, chimpanzees, cuckoos, diatoms, ecology of microbes, energy from sunlight, freshwater environment, giant kelp, golden algae, humans, jeremiah hackett, multicellular organism, photosynthesis, phytoplankton, predator; alternative explanation, prymnesium parvum, rattlesnake venom, single celled algae, species of algae, toxic alga, toxic algae, toxic algal blooms, toxic cells, toxic counterparts, toxic population, toxin, university of arizona, us waters, venus fly trap, william driscoll

Cheating is a behavior not limited to humans, animals and plants. Even microscopically small, single-celled algae do it, a team of UA researchers has discovered.

Humans do it, chimpanzees do it, cuckoos do it – cheating to score a free ride is a well-documented behavior by many animals, even plants. But microscopically small, single-celled algae? Yes, they do it too, biologists with the University of Arizona’s department of ecology and evolutionary biology have discovered.

“There are cheaters out there that we didn’t know of,” said William Driscoll, lead author of a research report on the topic who studied an environmentally devastating toxic alga that is invading U.S. waters as part of his doctoral research in the lab of Jeremiah Hackett, an assistant professor of ecology and evolutionary biology. (more…)

Researchers Report Potential for a Moderate New England ‘Red Tide’ in 2011

By Guest PostApril 10, 2011Environmentalexandrium fundyense, alexandrium germination, cyst, darcie couture, dennis mcgillicuddy, don anderson, ecomon, ecosystem monitoring program, gomtox, gulf of maine, gulf of maine toxicity, jane lubchenco, new england shellfish industry, new hampshire coasts, noaa, paralytic shellfish poisoning, psp, psp toxicity, red tides, ruoying he, shellfish beds, stacy knapp, toxic alga, toxicity

*Bloom could be suppressed by changes in ocean conditions in the Gulf of Maine*

Scientists from the NOAA-funded Gulf of Maine Toxicity (GOMTOX) project issued an outlook for a moderate regional bloom of a toxic alga that can cause ‘red tides’ in the spring and summer of this year, potentially threatening the New England shellfish industry. However, there are signs this year’s bloom could be suppressed by recent changes in ocean conditions in the Gulf of Maine.

An abundant seed population in bottom sediments has set the stage for a moderate bloom of the toxic alga Alexandrium fundyense. This organism swims in the water, and divides again and again to form a “bloom” or red tide, but it also produces dormant cells or cysts that fall to the ocean bottom at the end of these blooms where they remain until they germinate the next year to restart the process. (more…)

Tag Archives: toxic alga

Golden Algae: They Hunt, They Kill, They Cheat

Researchers Report Potential for a Moderate New England ‘Red Tide’ in 2011