French maritime waters span three distinct sea areas: the English Channel (Manche), the Bay of Biscay (Golfe de Gascogne), and the French Mediterranean (Méditerranée). Each supports a different assemblage of commercially important species, shaped by water temperature, depth, substrate type and oceanographic currents. The following species account for a large share of French landings by volume or economic value.
European Sea Bass — Loup de mer (Dicentrarchus labrax)
Sea bass is one of the most economically valuable demersal species in France. It inhabits coastal and estuarine zones from the English Channel to the Mediterranean, tolerating a wide range of salinities. Adult sea bass typically spawn offshore in winter, with juveniles moving into sheltered inshore areas during spring and summer — a pattern that makes estuaries and seagrass beds critical nursery habitat.
Stock assessments for the Atlantic sea bass stock (ICES area VI–VIII) have indicated that fishing mortality exceeded sustainable levels for much of the 2010s. Management responses included emergency TAC reductions, a ban on commercial fishing during winter spawning aggregations, and strict limits on recreational catches — currently set at one fish per day per angler in French Atlantic waters.
Atlantic Cod — Morue (Gadus morhua)
Cod was historically one of the most commercially important species in the North Atlantic, and the French Grand Banks cod fishery (morue de Terre-Neuve) shaped port towns across Normandy and Brittany for centuries. Today, cod stocks in the waters immediately adjacent to France — the western English Channel and Celtic Sea — remain depleted relative to historical levels. ICES assessments show that these stocks are below the Blim reference point in some sub-divisions, meaning spawning stock biomass is considered too low to guarantee full reproductive capacity.
France has historically imported significant quantities of salt cod (morue séchée salée) from Norway and Iceland to meet domestic demand, as domestic Atlantic stocks are insufficient to sustain large-scale commercial fishing at current consumption rates.
Bay of Biscay Anchovy — Anchois (Engraulis encrasicolus)
The small pelagic anchovy is biologically one of the most dynamic species in the Bay of Biscay. Its population fluctuates substantially from year to year, driven primarily by recruitment success — the survival rate of young fish hatched each spring. Ifremer conducts the annual PELGAS acoustic survey each May to estimate spawning stock biomass, and this survey directly determines whether a commercial fishing season opens that year.
After the stock collapsed and fisheries were closed from 2005 to 2010, anchovy recovered significantly, and a commercial fishery reopened with precautionary TACs. The French purse seine fleet operating from ports in the Bay of Biscay — including Saint-Jean-de-Luz and Hendaye — targets anchovy primarily in spring and early summer.
Common Sole — Sole (Solea solea)
Common sole is the highest-value flatfish species landed in France, commanding prices at auction (criée) significantly above most other species. It inhabits sandy and muddy bottoms in shallow coastal waters, making the Bay of Biscay and the eastern English Channel its principal French habitats. Sole is primarily caught by beam trawls and nets targeting the seabed.
Bay of Biscay sole (ICES division VIIIa,b) has been assessed as above MSY Btrigger in recent years, indicating a more stable stock compared to its historical lows. Nonetheless, management remains conservative, with TACs set below maximum yield levels to rebuild biomass further.
European Hake — Merlu (Merluccius merluccius)
Hake is a mid-water predator distributed across the northeast Atlantic from the Bay of Biscay to the Norwegian coast. Northern hake (ICES areas III, IV, VI, VII, VIIIa,b,d,e) is managed under a multi-annual plan that entered into force in 2019. The plan sets fishing mortality reference points and requires TAC reductions when stock indicators fall below trigger levels. French fleets targeting hake operate demersal trawls and longlines, mainly in the Bay of Biscay and Celtic Sea.
Mediterranean Species: Rouget and Pageot
In the French Mediterranean — particularly around Marseille, Sète and the Gulf of Lion — two species of particular commercial importance are red mullet (rouget barbet, Mullus barbatus) and common pandora (pageot commun, Pagellus erythrinus). Both are short-lived species with rapid growth, making them relatively resilient to fishing pressure compared to long-lived demersal fish, but Mediterranean stocks are poorly assessed due to data gaps across EU and non-EU waters.
Fishing Seasons and Minimum Landing Sizes
French regulations specify minimum conservation reference sizes (MCRS) for most commercial species — below which fish must be discarded (or used only for non-human purposes under the landing obligation's de minimis exemptions). For example:
- Sea bass: 42 cm in the Atlantic, 25 cm in the Mediterranean
- Common sole: 24 cm
- European hake: 27 cm (Atlantic)
- Atlantic cod: 35 cm
- Anchovy: 12 cm
These sizes are set in EU Regulation 2019/1241 on the conservation of fishery resources and the protection of marine ecosystems, which consolidated earlier technical measures.
Data sources: Stock status information is drawn from ICES advice documents and Ifremer's annual state-of-the-sea reports (Bilan des Ressources Halieutiques). These are public documents available at ices.dk/advice and ifremer.fr.