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A guide for planners and managers - IUCN

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Mangroves, lagoons, Introduce dissolved <strong>and</strong> particulate Transport by tidal<br />

estuaries organic compounds to reef food web flushing <strong>and</strong><br />

currents<br />

As feeding grounds <strong>and</strong> nurseries Nocturnal/diurnal<br />

<strong>for</strong> reef fishes, increase diversity migration<br />

<strong>and</strong> abundance of reef species<br />

Trap pollutants <strong>and</strong> silt, protecting Disturbance of substrate, release Transport by tidal<br />

reef from poisoning or smothering of trapped silt <strong>and</strong> pollutants flushing, stream<br />

can result in smothering flow, <strong>and</strong> currents<br />

or poisoning of reef organisms<br />

Linked<br />

Beaches <strong>and</strong> dunes S<strong>and</strong> released by erosion or Transport by wind,<br />

destruction of binding waves, <strong>and</strong> currents<br />

vegetation may smother organisms<br />

Watersheds Regulate stream flow Silt, floods, <strong>and</strong> dilution of seawater Transport by streams<br />

caused by de<strong>for</strong>estation <strong>and</strong> <strong>and</strong> currents<br />

erosion can stress organisms<br />

Urban or industrial Litter; domestic, chemical, <strong>and</strong> Transport by streams<br />

Developments thermal pollution; increased <strong>and</strong> currents<br />

freshwater runoff can poison or<br />

physically damage organisms or<br />

cause eutrophication<br />

Agricultural Silt, floods, <strong>and</strong> dilution Transport by stream:<br />

development of seawater; pesticides, <strong>and</strong> currents<br />

herbicides, <strong>and</strong> fertiliser<br />

pollution can smother organisms<br />

or cause eutrophication<br />

Source: Salm (1984).<br />

PART II<br />

Protected Areas <strong>for</strong> Coral Reefs<br />

177

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