Shoreline

Narrowing of an arm of the sea (sea inlet) between two land masses that only leaves a relatively narrow passage between them.

Reduction of the salinity of sea water resulting either from a mixture of sea water with inland water or from rain.

Usually refers to a mollusc, generally from the sea, bearing a shell (shell-forming). At the regulatory level (health regulations), the term "shellfish" refers to the following marine animals: bivalve molluscs (filter feeder), gastropod molluscs, sea urchins (echinoderms) and sea squirts (tunicates).

Ratio, in a given place, of the mean tidal range in spring tides. This number, expressed in hundredths, is applied to the tides on French coasts. It allows an approximate prediction of High and Low Tides. Tides whose coefficient is greater than 85 are called "spring tides" and those whose value is less than 55 are "neap tides". The concept of

In Provence, means a recess from the coast, long and narrow with steep slopes generally made of hard limestone.

Refers to a long and narrow body of sea water enclosed between lands.

Cylindrical pile, traditionally in oak, planted in a line on the bottom of the foreshore and used for breeding mussels attached to stakes or on wrapped around ropes.

Part of a coastal aquifer invaded by salt water (usually sea water) between the bottom of the aquifer and a freshwater-saltwater interface, the salt water wedge being under fresh water. The appearance of a salt wedge, beyond a natural low…

All organisms found at the bottom or on the seabed. E.g. macro-algae are attached to the bottom, they are part of the benthos (unlike unicellular algae or micro-algae that float passively and are therefore part of the phytoplankton). Molluscs, crustaceans and worms are also part of the benthos, although their eggs are planktonic. It is the same with echinoderms.

Adjective that describes the water-sediment interface (= water-lithosphere interface) of an aquatic ecosystem, regardless of its depth (the bottom of lakes or of rivers or of the sea). Also describes an organism living on the river bottom or sea bed (macroinvertebrates, for example).