The coastal zone spans both land and water,extending landward up to the highest water line that occurs on shore during storms and seaward to the point at which storm waves no longer move sediments on the seafloor.The specific contact line between land and sea is the shoreline and adjacent land is considered the coast.Coastal zones are ecologically important areas that support economic development but are also threatened by various human-induced pollutants (e.g.,wastewater discharge,oil spills).Moreover,global climate changes (increased temperatures and sea level rise) have accelerated shifts in coastal ecosystems.Declines in the biodiversity of coastal waters have been reported worldwide and have significant impacts on coastal ecosystem function and biogeochemical cycles.