https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/e731c2a1-e4b0-42e9-bed9-bd911c9b496c MACROALGAE (SEAWEEDS) Date=2017-03-15 User Id=mgenazzi Entity=Definition Operation=UPDATE Field=reference User Note=Definition updated System Note=update Definition Old Value=Lerman, Matthew. 1986. Marine Biology. The Benjamin Cummings Publishing Company. Menlo Park, California. New Value=Lerman, Matthew. 1986. Marine Biology. The Benjamin Cummings Publishing Company. Menlo Park, California. Date=2017-03-15 User Id=mgenazzi Entity=Definition Operation=UPDATE Field=text User Note=Definition updated System Note=update Definition Old Value=Macroalgae, or seaweeds, are the dominant marine plants inhabiting temperate coasts. Macroalgae contain chlorophyll and an assortment of additional pigments spanning the visible spectrum from blue to red. Historically, classification was based on pigmentation. At present, the classification of marine algae relies on additional diagnostic characteristics. Although pigmentation is only one of the characteristics used to classify the algae, the original names, which were based on color, have been retained. The major divisions of seaweed are green algae (Chlorophyta), red algae (Rhodophyta), and brown algae (Phaeophyta). New Value="Macroalgae, or seaweeds, are the dominant marine plants inhabiting temperate coasts. Macroalgae contain chlorophyll and an assortment of additional pigments spanning the visible spectrum from blue to red. Historically, classification was based on pigmentation. At present, the classification of marine algae relies on additional diagnostic characteristics. Although pigmentation is only one of the characteristics used to classify the algae, the original names, which were based on color, have been retained. The major divisions of seaweed are green algae (Chlorophyta), red algae (Rhodophyta), and brown algae (Phaeophyta). 'Macroalgae, or seaweeds, are the dominant marine plants inhabitingtemperate coasts. Macroalgae contain chlorophyll and an assortment ofadditional pigments spanning the visible spectrum from blue to red.Historically, classification was based on pigmentation. At present, theclassification of marine algae relies on additional diagnosticcharacteristics. Although pigmentation is only one of the characteristicsused to classify the algae, the original names, which were based on color,have been retained. The major divisions of seaweed are greenalgae (Chlorophyta), red algae (Rhodophyta), and brown algae(Phaeophyta). 2017-03-15 11:16:42.0