Harmful Algae <i>Pseudo-nitzschia</i> (IMAGE) NOAA Fisheries West Coast Region Caption Dense cells of the harmful algae Pseudo-nitzchia during a bloom off the West Coast last summer. The bloom forced the closure of numerous shellfish and crab fisheries. Credit NOAA/NWFSC Usage Restrictions CREDIT: NOAA/NWFSC License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.