A team of researchers claims to have found an elusive algal toxin implicated in massive fish kills along the Mid-Atlantic coast in the 1990s. They say that the compound's characteristics explain why it has been so difficult to track down. Other researchers, however, remain skeptical.
The hunt for a toxic product of the single-celled alga Pfiesteria piscicida dates to the early 1990s, when researchers laid the blame for fish kills in North Carolina waters on the organism (SN: 9/27/97, p. 202: http://www.sciencenews.org/pages/sn_arc97/9_27_97/bob1.htm). Moreover, scientists who worked with the alga in the laboratory reporte