Coastal Marine Environment Sustainability - Sustainable Practices in Geoenvironmental Engineering - page 298

FIGURE 8.18
An example of creation of an artiicial tideland.
FIGURE 8.19
Dense sward of eelgrass ( Zostera marina L.) in a coastal region.
water eelgrass has shorter and narrower leaves, whereas deeper subtidal water eelgrass
has longer and wider leaves. They tend to grow in tidal creeks, sandy bays, estuaries, and
on silty-sandy sediments and are a vital part of the food web chain for the coastal marine
ecosystem. In dense swards of eelgrass, silt and clay particles tend to be deposited with
organic matter. Decomposition of organic matter will render the seabed anaerobic, and the
color of the sediments will become black because of the effect of sulide.
The eelgrass family is one of the few lowering plants that lives in salt water, and the
long grass blades are home to various kinds of small marine plants and animals. They are