The period of the trout fishing in 1st category is almost harmonized on all France and is generally fixed second Saturday of March at third Sunday of September, so an optimal protection of the reproduction of the trout .  The prefect can however prolong dune at three weeks this period in the plans and the parties of exchange rate or the exchange rates of high mountain.  
In water of 2nd category, the fisheries are authorized very , with of the fisheries of pike or of , which have specific periods of closing. Thus, the fisheries of pike are authorized of January 1st at last Sunday of January and 3rd Saturday at December 31st (included), knowing that the prefect can prolong dune at four weeks the period of closing of the fisheries of pike. Fisheries of the trout , or salmon of fountain, L knight and the (like

rainbow trout in the classified exchange rates with salmon or sea trout) is authorized in 2nd category during time in water of the 1st category.
The fisheries of L shade commun run are allowed third Saturday of May third Sunday of September in 1st category and until December 31st in 2nd category.
In a general way, it is advisable to recall that the prefect can prohibit the fisheries dune or several fish species in certain parties of exchange rate or plans, for one length of time determines.

The period of fisheries of migrating fish (salmon, sea trout, eel, aloses, lampreys) is fixed by order of the prefect in accordance with the plan of management of migrating fish elaborate in each mining area.  

* living alternatively out of fresh water and salt water