The scientific species repository of the Fisheries Information System lists the species observed during fishing campaigns or within the framework of the observations of collection programmes (ObsVentes, ObsMer, Campaigns, etc.).

The MFSP repository of the Fisheries Information System corresponds to the combination of Parameters, Supports, Fractions, Methods and Units. It allows variables to be entered, banked and retrieved. It is associated with many other repositories: species, gear, etc.

A metier in the Fisheries Information System is a fishing practice defined by a fishing gear and a target species. They are used for statistical purposes to evaluate fishing strategies and efforts.

The repository of commercially exploited species of interest in the Fisheries Information System is based on the FAO's ASFIS repository enriched with species of high commercial interest in France (metropolitan and overseas).

For some commercial species, coefficients called live weight equivalents allow the live weight of the fish to be calculated from the weight recorded on landing, or from the net weight of the various processed products prepared on board or in factories located on the coast.

The gear repository of the Fisheries Information System includes, on the one hand, the FAO fishing gears enriched with national specificities and, on the other hand, the sampling gears used during the fisheries surveys conducted by Ifremer and its partners.

The repository of location in the Fisheries Information System is divided into 3 categories: places on land, areas at sea and regulatory areas at sea. Each of these is organised hierarchically. There are 93 levels of places in Harmonie: a metadata sheet exists for each of them with, when it exists, a geographical layer.

Size-weight relationships are specific to each scientific species and its environment. They allow the size of an individual to be determined from its weight or vice versa. These relationships are established statistically from a sample of individuals representative of the species.

The analysis concerns the assessment of the overall state of the coastal and transitional waters of the Western Channel and the Bay of Biscay. It results from the combination of the ecological status and the chemical status of each water body according to the rules of the European Water Framework Directive (WFD). The most recent assessment of the state is presented in the DCE Loire-Bretagne atlas. Earlier reports are available in annual archives.