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Posted "No Shellfishing" sign in Mill Pond, Orleans, MA.

Posted "No Shellfishing" sign in Mill Pond, Orleans, MA.
Posted "No Shellfishing" sign in Mill Pond, Orleans, MA.
Posted "No Shellfishing" sign in Mill Pond, Orleans, MA.
Posted "No Shellfishing" sign in Mill Pond, Orleans, MA.
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Kulis, David
Posted "No Shellfishing" sign in Mill Pond, Orleans, MA.
Still Image
04/03/2012
graphics/Dave_Kulis_Orleans/P4030073.jpg
Image Of the Day caption:
A sign stands sentinel in Nauset Estuary on Cape Cod, warning that the estuary is closed because of red tide. Annual springtime red tides, a type of harmful algal bloom, develop in the estuary from the germination of algal cysts found in the sediments. Shellfish consume the algae and accumulate a toxin in their tissues that can sicken people who consume them. WHOI biologist Don Anderson and others in his lab are studying whether cycts buried by re-suspended sediments are less likely to germinate, lessening the severity of the blooms.
Photo courtesy of Dave Kulis
© Woods Hole Oceanographic Institution
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