from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A macroscopic plant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any normal macroscopic plant, especially an aquatic one.
from The Century Dictionary and Cyclopedia
- n. A plant visible to the unassisted eye: contrasted with microphyte. See quotation under dysphotic.
It is a rich mosaic of savanna grassland, thickets and woodlands; grasslands: low-lying, hygrophilous and floodplain; sedge swamps, freshwater reed and papyrus swamps; riverine woodlands, swamp forests and forested dunes; the lake with its uniquely variable salinity regime;, underwater macrophyte beds, saline reed swamps, salt marshes and mangroves; rocky and sandy shores, coral reefs and submarine canyons.
Some lake phosphorus values appear low due to dense aquatic macrophyte growth.
Recent investigations have shown that macrophyte communities can be highly diverse but also may include a large proportion of exotic species.
The effects of fisheries, focusing on the top predators and herbivores of the food web, is globally visible in the disappearance of large fish, sharks, turtles, crustaceans and plants, and consequent increases in smaller fish species, sea urchins, etc., and their phytoplanktonic or macrophyte food.
Losses of species diversity in phytoplankton, periphyton, macroalgae and macrophyte communities
Shifts in species composition of phytoplankton, periphyton, macroalgae and macrophyte communities
As macrophyte biomass increases, the mean water velocity of a river decreases.
Some of these macrophyte beds have not been seen for many decades due to changing conditions of the lake mostly due to pollution.
The macrophyte beds that have returned are providing cover and acting as nurseries for some species of fish.
For example, coral reefs, estuaries and the "remaining shelf" all include macrophyte-dominated communities.
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