Thixotrophy
Delta Journal
by Bob Thomas
A walk down the beach where the water laps up on the sand, especially in Alabama and Florida where the water is clear and the sand is white, is relaxing but can be a bit biologically misleading.
Lithophide Stone - Beach Rock
Delta Journal
by Bob Thomas
If you spend much time on the beaches of Louisiana, you are bound to find odd looking hardened objects that appear to be stone. But, rocks on a beach? That doesn’t make sense on the Gulf coast.
Wood in the Water
Delta Journal
by Bob Thomas
Folks often think of limbs and logs in water as obstructions, an undesirable condition. If there is any value, the wood is a nice place for turtles to sunbathe and for egrets to stealthily search for aquatic food.
Actually, wood is vitally important to the health of aquatic and marine ecosystems.
Winter in the Swamp
Delta Journal
by Bob Thomas
Oyster Reefs
Delta Journal
by Bob Thomas
America’s WETLAND – coastal Louisiana wetlands – is a complex ecosystem made up of a labyrinth of estuaries, bayous, swamps, and marshes.
Among its more important and interesting components is the oyster community. Oysters, of course, are one of the basic elements of Louisiana haute cuisine.
Coastal Wetlands
Delta Journal
by Bob Thomas
America’s WETLAND, Louisiana’s coastal wetlands, are vast and diverse. They are obviously not homogeneous assemblages of plants, but they are easily separated into five biological and physical communities.
They may first be subdivided into two broad categories. Swamps usually have standing water and contain woody vegetation. Marshes also are usually inundated with water, but contain non-woody standing vegetation.
Flotant (Floating) Marsh
Delta Journal
by Bob Thomas