Editing Aegean Sea (section)

== Marine environment ==
The seabed consists of deep basins separated by island ridges and shallower passages. Narrow channels between islands concentrate currents and influence navigation. Rocky shores occur around much of the island coastline, while beaches and wetlands have developed in sheltered coastal areas. Seagrass grows in shallow water where the seabed receives sufficient light.

The Aegean supports Mediterranean fish and shellfish. Dolphins occur throughout the sea, while seals use isolated coastal caves and rocky shores. Islands and coastal wetlands provide feeding or nesting areas for seabirds.

Fishing affects populations of commercially used marine species. Shipping creates noise and increases the risk of pollution in heavily travelled passages. Coastal construction has altered some shorelines, while tourism places seasonal pressure on beaches and island water supplies. Rising sea temperatures are also changing conditions within marine habitats.