Final Answer:
In the 1990,there were several outbreaks of a toxin known as Pfiesteria complex organisms (PCOs).
Step-by-step explanation:
The genus Pfiesteria, consisting of heterotrophic dinoflagellates, gained notoriety due to its association with harmful algal blooms and fish kills. In the 1980s and 1990s, Pfiesteria complex organisms (PCOs) were implicated in significant fish kill events along the North Carolina coast and in Chesapeake Bay tributaries.
These occurrences prompted six US East Coast states to establish monitoring programs aimed at swift responses to new outbreaks and a better comprehension of factors contributing to Pfiesteria toxicity and bloom formation. Advances in molecular detection methods have uncovered the global presence of Pfiesteria, indicating its distribution beyond its initially identified regions.
This expanded understanding underscores the necessity for continued monitoring and research to address the potential ecological and public health implications associated with Pfiesteria and its complex organisms.
Correct answer: Pfiesteria complex organisms (PCOs).
Complete question:
- In the 1990, there were several outbreaks of a toxin known as pfiester____?