||none known at this time.
||most frequently observed in Maryland's Coastal Bays.
||Fibrocapsa japonica was collected in low to moderate
densities during June 2002 from the Coastal Bays St. Martin River.
Fibrocapsa belongs to a group of plankton known as the Raphidophytes;
small, flagellated golden-brown cells. There are only about a dozen
known species of Raphidophytes in the world but about half are known to
be harmful to marine life (Hargraves and Maranda 2002). Fibrocapsa
has had devastating impacts on mariculture operations in Japan. Strains
of Fibrocapsa japonica collected from the North Sea in Europe
have been capable of producing toxin that killed fish in laboratory tank
studies. Two seals that died in the Wadden Sea of Germany were shown to
have high levels of the toxin Fibrocapsin. Conditions for bloom
formation and toxin production are not well known. No evidence of
toxicity has been detected in samples of Fibrocapsa taken from
Maryland waters. Other Raphidophytes of concern that have been found in
the Chesapeake and Coastal Bays during water quality monitoring by
Maryland Department of Natural Resources are
and species of Chattonella.
||Hargraves, P.E. and L. Maranda. 2002. Potentially toxic or harmful
from the northeast coast. Northeastern Naturalist 9(1):81-120.