Shoreline

Violent swell of the sea caused by sudden underwater tectonic disturbances: earthquake, underwater collapse, etc. The waves thus generated propagate at high speed (several hundred km/h) with wavelengths of several kilometres and can have amplitudes of several tens of metres, causing major damage to the coastline they strike.

Coastal marshes which are diked, drained and reclaimed.

Toxic substance secreted by certain species of phytoplankton.

Designates a fraction, one or more stocks in interaction with one or more fleets practicing one or more fishing activities.

Fishing activity whose catches are processed into flour (for the breeding of pigs and poultry mainly) but also into oil and other by-products.

Fishing whose product is intended for exclusive consumption by the fisherman and his family and cannot be peddled, exhibited or sold. Sport fishing regroups boat fishing (fishing from a boat, also called recreational or pleasure fishing, - which also includes big-game fishing also called offshore sport fishing), hand fishing, shore fishing, and finally underwater fishing. It is practiced either from ships or boats other than those having a permit and a crew for fishing, or by swimming or diving, or walking on the public maritime domain and on the part of rivers or channels where the water is salty. [...] For sport fishing, the use of any breathing equipment, whether self-contained or not, which allows a person to breath underwater without returning to the surface, is prohibited. [...] Sport fishing can be prohibited either for some protected species, or depending on the size of commercial species, on the fishing methods used, on fishing areas and seasons, on fishing bans and stoppages

It is an activity practiced along the shore for gathering fish without using a boat. Hand fishing can be either a recreational activity (we also speak of "sport fishing") or a professional activity (which mainly concerns bivalves).