1 cell = Rare, <1% of assemblage

2 cells = Present, 1-9%

3 cells = Common, 10-49%

4 cells = Abundant, >50%

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Pseudo-nitzschia spp. -----------------Chaetoceros spp.

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-Prorocentrum spp.--------------------------Guinardia spp.

-----------------

---Akashiwo spp.------------------------ Thalassiosira spp.

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----Ceratium spp.---------------------Mixed Dinoflagellates

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---Skeletonema spp.----------------------Mixed Diatoms

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---Noctiluca spp.------------------------Protoperidinium spp.