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A National Ocean Service/National Center for Coastal Ocean Science Program

Phytoplankton Monitoring Network

Promoting a better understanding of harmful algal blooms by way of volunteer monitoring

Mystery Plankton:
New Plankton returns in September

During the first week of the month only one piece of the entire plankton picture will be visible. After the first week of the month, the rest of the mystery plankton puzzle will be revealed. Winner will be drawn at the end of the month. Only one entry per month.


Please view the full contest rules.


In The News:
Alternative Energy

Sears Tower or Bust: My Algae-Powered Car Adventure  cite: jalopnik.comA group of Chicago high school students were able to power a VW Vanagon camper for a trip to the Sears Tower and back.
Find out how they did it at jalopnik.com.


Check This Out!
Olympic Algae

An algal bloom is taking place in about one-third of the waters designated for Olympic competition.

To view the article: www.nytimes.com


Check This Out!
Red Tide in Boston Harbor

For the first time in 36 years, red tide causes the closing of Boston Harbor to shellfishing.

To view the article: www.boston.com


Ask A Scientist!

Do you have a question you need answered about phytoplankton? Submit Question

Toxic Dinophysis acuminata Bloom in Texas

Imaging Flow CytoBot data - credit: Dr. Lisa Campbell, Imaging Flow CytoBot on 2/12/2008On February 14, 2008 Dr. Lisa Campbell, an oceanography researcher at Texas A&M University, noticed some interesting images being taken by an instrument, the Imaging Flow CytoBot, deployed at Port Aransas, Texas. An undetermined species of Dinophysis was beginning to show up in increasing numbers. She notified state officials and others about the potential bloom and soon after sent a water sample to the FDA to test for the toxin okadaic acid. Three weeks later the event had become a full-fledged bloom. A report of discolored water in the Port Aransas marina on March 3 led to a water sample containing high concentrations of Dinophysis acuminata. By the next day FDA had found okadaic acid in Dr. Campbell's water sample. The Texas Department of State Health Services immediately began collecting water samples from area oyster reefs and by the end of the week a press release was issued announcing the closure of Corpus Christi, Aransas and Copano bays to the harvest of oysters, clams and mussels as well as a recall of those shellfish harvested on or after March 1. This marks the first time the Texas shellfishery has been closed due to okadaic acid.

Dinophysis acuminata - credit: Dr. Steve MortonTexas volunteers did find a high abundance of D. acuminata in Christmas Bay, an area north of the main bloom. As the event progressed, levels of D. acuminata dropped while those of Prorocentrum compressum. Though the oysters did accumulate okadaic acid quickly at the onset of the bloom, the toxin levels had declined dramatically before the end of March. By April 1 the state health department had begun to reopen certain bays to shellfish harvesting; all bays were reopened by April 12.

Volunteer monitoring is a great addition to the event monitoring done by state agencies and universities because many times the resources are not available to allow for a large-scale survey of coastal waters. Texas is fortunate to have such wonderful volunteers!

Schedule Trainings

Please check the PMN training calendar for available dates and email Allison or Jeff to reserve your day and time.