Seagrass

From Academic Kids

Missing image
Johnson's_seagrass_bed.jpg
Johnson's seagrass in the coast of Florida

Seagrass (or sea-grass in British English) are flowering plants from four plant families (Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae) that grow in the marine saline environment.

They are called seagrasses only because most species superficially resemble terrestrial grasses of the Family Poaceae. Because these plants must photosynthesize, they are limited to growing submerged in the photic zone, and most occur in shallow, tropical, coastal waters anchored in sand or mud bottom. They undergo pollination while submerged and complete their entire life cycle underwater.

Herbivores that consume seagrass include dugong, some juvenile fish, and crabs. Some fishes lay eggs on the blades.

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Floridian_seagrass_bed.jpg
Seagrass from the coast of Florida
Contents

Genera of sea grasses

See also

References

  • den Hartog, C. 1970. The Sea-grasses of the World. Verhandl. der Koninklijke Nederlandse Akademie van Wetenschappen, Afd. Natuurkunde, No. 59(1).

External links

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