Translate the following English sentence to French:
"They was no limit on the extent to which they could be used there, which posed a serious threat, not just to the fish stocks but also to the livelihoods and the food supply of the people in the local area."
Ces bateaux peuvent alors être utilisés sans restriction, mettant ainsi gravement en danger tant les ressources halieutiques que les revenus et l' approvisionnement en aliments des habitants de la région en question.