Event name:
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US-05-017
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Country:
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UNITED STATES
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Nature of the harmful event:
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Water Discoloration
,
High Phyto concentration
,
Mass mortalities
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Event directly affected:
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Natural Fish
,
Other Terrestrial
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Toxicity detected:
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Yes
(Approximate range: 229-1809 ug/L KmTx1 (n=3))
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Associated syndrome:
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Unexplained toxicity:
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Species implicated in toxin transmission (transvector):
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Karlodinium veneficum (=K. micrum, Gyro/Gymnodinium galatheanum)
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Report the outcome of a monitoring programme:
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Yes
(Continuous Water quality Monitoring Program, Rapid Response Monitoring Programs in MD)
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Event occurred before in this location:
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No
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Individuals to contact:
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TANGO, Peter
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Causative organism known:
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Yes
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Causative Species/Genus:
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Karlodinium veneficum
(56,000 cells/L)
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Co-Ocurring Species/Genus:
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Chlorophyll concentration, if known:
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pre bloom: 275 ug/L, post bloom: 25 ug/L µg/l
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Additional bloom information:
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I'll have to do some digging to get additional species info. Giving you what I had readily available. Post event, Heterosigma akashiwo was in the algal community but none was detected during the bloom either by microscope or PCR.
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Event-related bibliography:
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Occurrence of Actively Toxic Phytoplankton and Cyanobacteria and Their Significance in Chesapeake Bay. Tango et al. 2006 draft prepared for submittal to the journal Estuaries in April 2006.
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Species containing the toxin
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Toxin type
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Toxin details
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Max. concentration
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Assay type
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Karlodinium veneficum
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Kalkitoxins
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1809 ng/ml
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LC-MS
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Kit used:
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Type of kit used:
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Additional information:
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Toxin testing conducted by COMB lab of Allen Place, Baltimore, MD
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Economic losses:
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Management decision:
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The Corsica River is a watershed selected by the State of MD as the region's first targeted comprehensive implementation plan to remove a river from US EPAs list of impaired waterways. Coincidentally, the morning the fish kill started, the Governor was m
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Additional harmful effect information:
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estimated 30,000 to 50,000 fish killed. 15 species were found on Tuesday by MDE, the most abundant fish were menhaden but also gizzard and hickory shad, sunfish, catfish, white and yellow perch, carp and killfish were observed. The fish kill is considere
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