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Ulva lactuca

"Sea lettuce"

This Chlorophyte is a sheet forming alga composed of two layers or cells, as seen in cross section here. Ulva, among other green algae, is very prolific in areas were there are lots of nutrients available. This is a photo of some of the Ulva dominated drift that accumulated in one section of the Narrow River. Nutrients are plentiful in this estuary due to runoff of animal and human wastes.