As macrophyte biomass increases, the mean water velocity of a river decreases.    From Wordnik.com.  [Macrophytes] Reference

Losses of species diversity in phytoplankton, periphyton, macroalgae and macrophyte communities.    From Wordnik.com.  [Inorganic nitrogen pollution in aquatic ecosystems~ causes and consequences] Reference

Shifts in species composition of phytoplankton, periphyton, macroalgae and macrophyte communities.    From Wordnik.com.  [Inorganic nitrogen pollution in aquatic ecosystems~ causes and consequences] Reference

The macrophyte beds that have returned are providing cover and acting as nurseries for some species of fish.    From Wordnik.com.  [Archive 2005-07-01] Reference

Recent investigations have shown that macrophyte communities can be highly diverse but also may include a large proportion of exotic species.    From Wordnik.com.  [Coastal lagoon] Reference

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.    From Wordnik.com.  [Marine biodiversity] Reference

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.    From Wordnik.com.  [Greater St Lucia Wetland Park, South Africa] Reference

Depth distribution and biomass of submersed aquatic macrophyte communities in relation to Secchi depth.    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

For example, coral reefs, estuaries and the "remaining shelf" all include macrophyte-dominated communities.    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

The open shelf, the various macrophyte systems, and coral reefs are typically net autotrophs as shown by GPP: R >.    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

The main ecosystems of the coastal ocean are: estuaries, macrophyte communities, mangroves, coral reefs, salt marshes and the remaining continental shelves (Table 1).    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

Recent investigations have shown that macrophyte communities can be highly diverse but also may include a large proportion of A schematic view of a coastal lagoon and main climatic and human-induced forcing.    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

The continental shelf (excluding specific ecosystems) is the major contributor to the NEP of the costal zone (75%) followed by macrophyte-dominated ecosystems (16%), mangroves (7%), marshes (3%) and coral reefs (2.6%).    From Wordnik.com.  [Coastal zone] Reference

The wetlands of this unique estuarine system include freshwater Phragmites australis - Cyperus papyrus swamp which covers approximately 7,000 ha in the Park, forming the largest protected wetland in South Africa; saline reed swamp on alluvium and islands in Lake St Lucia, dominated by Phragmites mauritianus; sedge swamp, mainly in the Mfabeni swamp, characterized by Eleocharis limosa; salt marsh dominated by Sporobolus virginicus, Paspalum vaginatum with Juncus kraussii (ncema, commercially used by local people), and nutrient-rich submerged macrophyte beds on saline lake-bed soils.    From Wordnik.com.  [Greater St Lucia Wetland Park, South Africa] Reference

The continental shelf (excluding specific ecosystems) is the major contributor to the NEP of the costal zone (75%) followed by macrophyte-dominated ecosystems (16%), mangroves (7%), marshes (3%) and coral reefs (2. 6%).    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

However, humans do impact the oceans already to a considerable degree, especially in the coastal areas but increasingly in the open ocean as well. 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.    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference