Recently, some kits have been developed that can detect marine
biotoxins in shellfish and phytoplankton/seawater. In using these
kits, samples of shellfish or phytoplankton (collected on a filter)
are extracted and then the extract is applied to a small cartridge.
The cartridge is allowed to develop, usually about 5
minutes, and then the presence or absence of two colored lines is
observed. If only one line (the control) is seen then
toxin is present in the sample. If two lines are observed, then
toxin is considered absent.
This technology, when applied as a screening device, would be useful
if it were implemented in a monitoring and surveillance program.
These kits could be used in the field to screen for the presence
or absence of toxins. Used as a screen, the kits would reduce the
number of samples that needed to be sent to state testing labs,
thereby reducing costs and/or resources for surveillance programs.