The Annapolis Royal Generating Station has been studied for its various effects, including an accelerated shoreline erosion problem on the historic waterfront of the town of Annapolis Royal, as well as increased siltation and heavy metal and pesticide contamination upstream due to lack of regular river / tidal flushing.

Ecological catastrophic events from human-made embankments have been noticed along the Yangtze River floodplains after the where the middle of the river has become prone to more frequent and damaging flooding including the loss of riparian vegetation, a 30 % loss of the vegetation cover throughout the river ’ s basin, a doubling of the percentage of the land affected by soil erosion, and a reduction in reservoir capacity through siltation build-up in floodplain lakes.

Gross habitat degradation and siltation by poor farming practices ( such as clearing riverbank vegetation and allowing stock to trample river banks ) is another factor that has destroyed many eastern freshwater cod habitats, and unfortunately some of these poor farming practices continue unchecked today.

This lake, formed by damming the main stem of the river, with no control over upstream land uses, has had major problems with siltation and agricultural pollution.

Irresponsible forestry and farming practices degrade and fragment river environments through siltation and other effects.

* the excessive, irreversible loss of riverine habitat caused by the construction of dams, barrages, irrigation canals, siltation, changes in river course, artificial embankments, sand-mining, riparian agriculture, and domestic and feral livestock, which have combined to cause an extreme limitation to gharial range.

* Immersed tunnels are often partly exposed ( usually with some rock armour and natural siltation ) on the river / sea bed, risking a sunken ship / anchor strike

This has led to siltation in the river, and the virtual decimation of the river's freshwater fish stocks.

The Hawkesbury-Nepean species appears to be threatened by introduced trout and other exotic fish, river damming and regulation, siltation, and urban encroachment, but does not appear to be as critically threatened as the Murray-Darling species.

Complete clearing of riparian ( river bank ) vegetation, stock trampling river banks, and massive siltation from these poor practices as well as poor practices in the catchment, can severely degrade and silt coastal rivers to the point of being uninhabitable for Australian bass.

Earlier the district was connected to other parts of the country by its major river The Matha Vanga but now the river route is invalid due to siltation on river beds.

This overfishing, combined with the massive siltation of their habitats by land-clearing, destruction of riparian vegetation and cattle trampling river banks, and dams and weirs blocking migration, rapidly caught up with this large, slow-growing, long-lived Maccullochella cod species, as it has with all its close relatives.

Due to siltation, the river is only fully accessible to motorized boats west of the Durham Water Plant for approximately 3 hours on either side of high tide.

Due to siltation and water pollution in the river the population of oysters hit an all time low in 2000 at.

As large, long-lived, top-order predators with delayed sexual maturity and relatively low fecundity ( fertility ) Maccullochella species are extremely vulnerable to overfishing, siltation and other forms of habitat degradation, and river regulation by dams and weirs that alter river environments and negatively affect spawning and recruitment ( survival ) of young fish.

Under Roman occupation the town ceded importance to the former Greek colony Ravenna as the continued siltation of the Po delta carried the seafront further to the east.

Land degradation / desertification ( soil erosion resulting from farming of marginal areas, overgrazing, destruction of vegetation ); water supplies contaminated by raw sewage ; siltation of reservoirs ; oil pollution of coastal waters

water pollution from agricultural runoff threatens fishery resources ; deforestation of tropical rain forest ; land degradation and soil erosion threatens siltation of Panama Canal

Deforestation ; land degradation ; water pollution from agricultural runoff, sewage, industrial wastes ; siltation of spawning grounds endangers fish populations

Overfishing, habitat loss from heavy siltation, and water pollution have eliminated most commercial fishing except for a small mussel harvest to provide shells to seed pearl oysters overseas.

For about 15 years Dumfries was a thriving port when several factors brought about its demise: the Revolutionary War, erosion and siltation, and the shift in the main shipping commodity ( from tobacco to wheat and sugar ).

Apart from soil erosion, other environmental processes such as siltation and sea level rise have also contributed to changing the bay ’ s coastline.

It was the largely unchecked erosion from this late 1960s and 1970s building spree that contributed the bulk of the Patuxent River's highest and most damaging sediment, siltation, and pollution levels to date downstream.

Threats to the salinity balance from increased siltation influxes will come from more projected logging in Natron watersheds and a planned hydroelectric power plant on the Ewaso Ng ' iro across the border in Kenya.

However, because of constant siltation over the past several years from mine tailings upstream from Agno River ( due to mine operations in neighboring Benguet Province ), and the overuse of artificial fish feeds, the bangus industry has suffered from fishkill, fewer viable fishponds and lower harvests.

In the years since its completion in 1922, the aging Lake Decatur has suffered from extensive siltation problems.

During construction, the lake bed and waterway were protected from erosion, pollution and siltation.

Richmond River cod are extinct, from overfishing, habitat destruction including gross siltation, and whole-of-catchment scale bushfires and fish kills in the 1930s.

Brisbane River cod are extinct, from overfishing, habitat destruction and siltation, and whole-of-catchment scale bushfires and ash fish kills in the 1930s.

In this era of flow regulation and flood curtailment by dams ( which remove the flood events that remove fine sediment ) and chronic siltation from poor agricultural practices and carp, silver perch eggs may now frequently land in anoxic fine sediment and organic matter and fail to survive.

Capacity of the dam has shrunk 25 % from 4 tmcft to 3 tmcft due to siltation.

The principal reasons for this were water quality and siltation.

When silt appears as a pollutant in water the phenomenon is known as siltation.

A weir will artificially reduce the upstream water velocity, which can lead to an increase in siltation.

Large volumes of urban runoff causes serious erosion and siltation in surface water bodies.

Further studies were done to model water quality, siltation, climate effects and change in land quality.

< http :// ntis. library. gatech. edu. www. library. gatech. edu: 2048 / gtonly / 2006-23 / PB2006113907. pdf >.</ ref > Suspected factors contributing to species decline include impoundment of waterways ( the creation of dams, which causes flooding in former bat caves ), cave commercialization, natural flooding, pesticides, water pollution and siltation, and local deforestation .< ref > Sherman, A. R., C. O.

This has caused difficulties such as mouth getting silted up and getting closed during the summer season ( June – July to Oct – Nov ); raise in flood level occurs during the rainy season ; the lake acts as a large evaporating basin when the bar is closed resulting in salinity levels remaining low or high subject to the flood discharge into the lake during the northeast monsoon ; fluctuation of water level in the lake ( above or below the sea level ) is affecting flora, fauna and fisheries ; siltation has caused variation of the lake mouth resulting in reduction of tidal inflows and consequent decline in stocking of commercially important species of prawns and mullets.

logging and agriculture in the surrounding watershed have contributed to siltation of the lake ( 1 cm / year-1. 2 million cubic meters / year ), and water diversion for agriculture and urbanization has reduced the size of the lake by 40 square kilometers, and 2. 6 meters in depth.

It was the principal seaport in north-western France for six centuries, until Le Havre was built about five kilometres ( three miles ) downstream in the sixteenth century to take advantage of anchorages less prone to siltation.

Kalyan is a port for more than two millennia until siltation and the rise of Mumbai eclipsed it and its sister ports, Nallasopara, Thane, Vasai, etc.