Conservation

The management of a natural resource for the protection, maintenance, rehabilitation, restoration, and/or enhancement of populations and ecosystems.

Glossary of Terms

Shingle

Loosely and commonly, any beach material coarser than ordinary gravel, especially any having flat or flattish pebbles.

Strictly and accurately, beach material of smooth, well-rounded pebbles that are not roughly the same size. The spaces betwen pebbles are not filled with finer materials.

Reef

An offshore consolidated rock hazard to navigation, with a least depth of about 20 metres (10 fathoms) or less. Often refers to coral fringing reefs in tropical waters.

Mean High Water (MHW)

The average height of the high water over a 19-year period. For shorter periods of observations, corrections are applied to eliminate known variations and reduce the results to the equivalent of a mean 19-year value. All high water heights are included in the average where the type of tide is either semi-diurnal or mixed.

Incident wave

A wave moving landward.

Propogation of waves

The transmission of waves through water.

Seagrass

Members of marine seed plants that grow chiefly on sand or sand-mud bottom. They are most abundant in water less than 9m deep. The common types are: Eel grass (Zostera), Turtle grass (Thallasia), and Mantee grass (Syringodium).

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Conservation