Timeline of Red Tides off Florida's West Coast

As shown in this table, red tides have occurred off the west coast of Florida for more than 170 years (current through 2013).

170 Years of Red Tides off Florida's West Coast

 
  Red Tide (MEDIUM levels or greater)
  Suspected continuance of red tide*
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
1844 Reports of fish kills; no duration
1854 Reports of fish kills; no duration
1856 Reports of fish kills; no duration
1865 Reports of fish kills; no duration
1878                        
1879 Reports of fish kills; no duration
1880                        
1882                        
1883 Reports of fish kills; no duration        
1884 Reports of fish kills; no duration
1885                        
1908 Reports of fish kills; no duration
1916                        
1935 Reports of fish kills; no duration
1946                        
1947                        
1948 Reports of fish kills; no duration
1952                        
1953                        
1954                        
1955                        
1957                        
1958                        
1959                        
1960                        
1961                        
1962                        
1963                        
1964                        
1966                        
1967                        
1968                        
1970                        
1971                        
1972                        
1973                        
1974                        
1975                        
1976                        
1977                        
1978                        
1979                        
1980                        
1981                        
1982                        
1983                        
1984                        
1985                        
1986                        
1987                        
1988                        
1989                        
1990                        
1991                        
1992                        
1993                        
1994                        
1995                        
1996                        
1997                        
1998                        
1999                        
2000                        
2001                        
2002                        
2003                        
2004                        
2005                        
2006                        
2007                        
2008                        
2009                        
2010                      
2011                        
2012                        
2013                        

Last updated 09/16/2013
 *Suspected continuance of red tide was not confirmed by water sampling

 

The data stored in the Florida Red Tide Historical Database are different from those found in many other long-term datasets because sampling effort varies from year to year. Not all samples are collected at fixed locations or times. Sampling effort varies with the location, extent and duration of blooms; and changes in availability of the funding that supports harmful algal bloom projects. The figure below illustrates this variation. Spikes in sampling effort correspond with copper sulfate spraying in the 1950s, marine mammal mortalities in the 1990s, and increased funding from federal sources during the last two decades. 

 

 Figure illustrating sampling effort through time between 1954 through 2011.

Figure illustrating sampling effort through time between 1954 through 2011. Points represent the number of samples collected each year, while the dotted line illustrates trends in sampling effort. The gray shading indicates situations that led to increased water sampling and the dashed line indicates the reestablishment of the FWC’s Red Tide Offshore Monitoring Program, for which volunteers collect samples for red tide analysis by FWC staff.

 



FWC Facts:
Signs on the Suwannee River warn of jumping Gulf sturgeon which, at up to 8 feet and 200 pounds, have been known to injure boaters.

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