Research

 

Are Widespread Fish Kills Caused by Pfiesteria?

Diseases occurring in fresh water fish populations kill countless fish every year. Although the results of most biological fish samplings show that the average fresh water fish is healthy, a small percentage of every fish population is not. This portion of the population is typically spread out - not confined to any one section of lake, river or stream. However, widespread fish kills do occasionally occur in localized areas. These incidents have occurred in North Carolina for hundreds of years, but they have become more common in recent decades. Scientists still do not have all the answers to these bizarre fish kills.

Not long ago, studies conducted in several river basins of North Carolina, such as the Neuse River basin, targeted a toxic parasite called dinoflagellate Pfiesteria as a leading suspect in a recent rash of fish kills. Then, some scientists proposed that humans were becoming ill due to contact with the Pfiesteria microbe. Scientists claim that this fatal flesh eating microbe spreads easily from fish to fish, and that humans might become sick from eating the infected fish or extended contact to infected water. However, some scientists are skeptical about recent findings from a series of studies done by UNC-CH and NC State professors. A scientific debate is unfolding in the state of North Carolina.

Many of the dissenting scientists claim that Pfiesteria poses little threat to humans, and that its presence in North Carolina is exaggerated. So what, or who, is causing widespread fish kills in North Carolina and the southeastern United States, in general? What are the real facts about Pfiesteria? Can it really make humans sick? How big of a concern should fish kills be to residents of the southeastern U.S.?

World Wide Web Sources:
Title of Web page: Pfiesteria in North Carolina
Web address: http://www.epi.state.nc.us/epi/pfie.html
Brief Description: An epidemiological page on the North Carolina Center for Public Health Web site, it offers answers to many of the most basic questions about Pfiesteria and how it affects North Carolina. Documents health precautions, frequently asked questions, fish kill statistics, etc.
Source of Web site: North Carolina Center for Public Health
Title of Web page: Habitat Protection: Pfiesteria Piscicida
Web address: http://www.epa.gov/owow/estuaries/pfiesteria
Brief Description: An EPA-based site that offers fact sheets, federal agendas and links concerning Pfiesteria. A good place to start for a broad overview of what the Pfiesteria microbe is doing on the east coast.
Source of Web site: US Environmental Protection Agency
Title of Web page: Aquatic Toxins: Pfiesteria
Web address: http://www.doh.state.fl.us/environment/redtide/Pfiesteria.htm
Brief Description: Focuses on the surveillance program adopted cooperatively by Florida's Department of Health and the Centers for Disease Control and Prevention. Stats from the 1998-2000 surveillance study highlight this page.
Source of Web site: The Florida Department of Health
Title of Web page: Pfiesteria.org
Web address: http://www.pfiesteria.org
Brief Description: An authoritative Website for Pfiesteria information. This site includes detailed accounts of sampling, testing, Pfiesteria life cycles, etc. Website is run by scientists at N.C. State University, which is well known across North Carolina and the southeastern United States as a leader in Pfiesteria related research.
Source of Web site: NCSU Center for Applied Aquatic Technology
Title of Web page: What You Should Know about Pfiesteria and NC's Waters
Web address: http://www.inr.state.nc.us/files/pfies.htm
Brief Description: A page full of useful facts about Pfiesteria and the potential dangers surrounding the microbe. This page is designed to be informative and educational; it offers a hotline number to call in case more questions arise.
Source of Web site: The North Carolina Department of Environmental and Natural Resources
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Non-Internet Sources:
Burkholder, J., and H.B. Glasgow. "History of Toxic Pfiesteria in North Carolina Estuaries from 1991 to the Present." In Environmental Sciences and Pollution Management
[database online]. Washington, DC: American Institute of Biological Sciences, 2001 [updated March 2002; cited 28 January 2003]. 14 pages
Hart, K. "Killer Dinoflagellate Fact Sheet." In Environmental Sciences and Pollution Management [database online]. Chapel Hill, NC: University of North Carolina at Chapel Hill Press, 1994 [updated February 2002; cited 29 January 2003]. 2 pages.
Magnien, R. "State Monitoring Activities Related to Pfiesteria-like Organisms." In Environmental and Pollution Management [database online}. Annapolis, MD: NIH Government Printing Office, 2001 [updated August 2002; cited 28 January 2003]. 3 pages.
Moe, C.L., et al. "Cohort Studies of Health Effects Among People Exposed to Estuarine Water: North Carolina, Virginia, and Maryland." In Environmental and Pollution Management [database online]. Atlanta, GA: NIH Governmental Printing Office, 2001 [updated August 2002; cited 28 January 2003]. 5 pages.
Pinckney, J.L. et al. "Responses of Phytoplankton and Pfiesteria-like Dinoflagellate Zoospores to Nutrient Enrichment in the Neuse River Estuary, North Carolina, USA." In Environmental and Pollution Management [database online]. College Station, TX: publisher unknown, 2000 [updated November 2000; cited 28 January 2003]. 13 pages.
Swinker, M., et al. "Estuary-associated Syndrome in North Carolina: An Occupational Prevalence Study." In Environmental Sciences and Pollution Management [database online]. Greenville, NC: publisher unknown, 2001 [updated February 2002; cited 28 January 2003]. 5 pages.

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Print Sources:
The Aquariums. The Pfiesteria Pfiles: StrangerThan Pfiction. Raleigh, NC. 2000.
C21 14: P52
North Carolina Department of Health and Human Services. "NC Harmful Algal Blooms
Program." Pfiesteria Facts- 1999: A Summary of Current Information About
Pfiesteria Piscicida. Raleigh, NC. 1999. J2 2: P52
Leutze, James. Currents of Hope: Reclaiming the Neuse River. Produced by Elaine Penn.
59 min. Creative Services, NC State University, 1999. Videocassette.
Videocassette C387.2 N495c
Search Terms
UNC Library catalog:
Pfiesteria AND (North Carolin?)
Pfiesteria AND (fish kills)
Academic Universe Lexis-Nexis
Pfiesteria AND (North Carolin!)
(Fish kills) w/* (Neuse River)
Search engine on Web http://www.altavista.com/.
Pfiesteria and (North Carolina)
(North Carolina) and (fish kills) and "Neuse River"
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Internet Mini-Essay
TITLE: The "Mouth of the South" is Moving Out.
(Topic Area: Net People and Places)

On January 29th AOL-Time Warner, the media giant and parent company of household names like America On-Line, Time, HBO, CNN and TBS announced a single year world record loss of $100 billion. (1)
That's shocking news, but perhaps even more unbelievable is the announcement that accompanied the financial disclosure: Vice Chairman Ted Turner is stepping down from the media monster that he helped create. (1)
Of course, Turner is no stranger to the spotlight, so perhaps audience members shouldn't be too surprised at yet another surprising move by Mr. Turner.
He began his business career by taking over his father's billboard company. By 1976 Turner had founded a TV station (WTBS) that would one day evolve into the Turner Broadcasting System (TBS) - the first cable "superstation" to provide programming to countless small cable stations through the use of satellite technology. In 1976 he bought the Atlanta Braves baseball team; in 1977, a portion of the Atlanta Hawks basketball team. By 1980, stocked with a wallet getting fatter by the hour, Turner was ready for a new adventure: a 24-hour news network. Questioned, even mocked by critics in the early years, CNN became a household name by the end of the Gulf War. In fact, many media scholars credit the station with helping to change the way news is delivered in this country as well as around the world.(2)
The decade of the 1990s saw Turner's estimated worth skyrocket. In 1996 Turner's TBS merged with Time Warner to form the largest media related business in the world, and in 1997 "Captain Outrageous" pledged to donate a whopping $1 billion to the United Nations program by the year 2007.(2) Unfortunately, AOL-Time Warner was hit hard by the deflating economy. Some critics question Turner's decision, but having already lost over $1.5 billion in the last year alone, can anyone really blame him?(1) Regardless, it should be fun to see what the "Mouth of the South" has planned next.

NOTES:
(1)Betsy Stark, "AOL/Time Warner Ted Turner is Stepping Down After Posting Losses in Excess of $100 Billion," Good Morning America, 30, January 2003. Available [Online]: Lexis-Nexis [Accessed: 02 February, 2003].

(2)"Turner, Ted." The Columbia Electronic Encyclopedia. © 1994, 2000, 2001, 2002 on Infoplease4Teachers. © 2002 Family Education Network. 3 Feb. 2003
<http:teachers.infoplease.com/ce6/people/A089757.html>.

 

Mini-Essay Sources:
THREE WEB SITES:
Title of Web page: "AOL Time Warner Ted Turner"
Web Address: http://web.lexis-nexis.com/universe/
Brief Description: A Peter Jennings story read on TV news about Turner's resignation
Source of Web site: World News Tonight with Peter Jennings (lexis-nexis)

Title of Web page: "Turner"
Web address: http://www.turner.com/
Brief Description: The home page for Turner Broadcasting System (TBS). Lots of information about various networks and programs owned by Ted Turner.
Source of website: Turner Broacasting System, Inc.

Title of Web page: "Ted Turner: Media Mogul and Philanthropist"
Web address: http://abcnews.go.com/reference/bios/turner.html
Brief Description: A brief biography that covers some of Turner's more colorful moments in the recent past.
Source of Web site: ABC News

World News Tonight with Peter Jennings, 30, January 2003. Available [Online]: Lexis-Nexis [Accessed: 02 February, 2003].

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