OCEAN 101 Chapter 12: Textbook notes 12.1-12.4
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Halophytes - salt tolerant plants (es: cordgrasses) Mangroves - trees and shrubs adapted to live in tropical and subtropical coastal regions. The difference between sea grasses and halophytes is that sea grasses are permanently submerged and halophytes cannot tolerate prolonged exposure. Macroalgae - seaweeds, not true plants because they don"t produce owers or seeds, relatively simple tissue: mostly benthic (attached to the bottom, sargassum - large planktonic multicellular alga. Phytoplankton - use solar energy to function: base of the food web, cyanobacteria are the only planktonic bacteria. Zooplankton - uni- and multi- cellular organisms that consume other organisms. Bacterioplankton - members of the domains bacteria and archaea. Size classi cation: picoplankton - <2-3 microns, nanoplankton - 2-20 microns, microplankton (aka net plankton) - 20-200 microns, macroplankton - 200 microns - 2mm. Radial: shaped like petri dishes, centric diatoms. Prochlorococcus: special forms of chlorophyll a and b.
