Translate the following English sentence to French:
"They have also found a transport vessel, flagged in Panama and owned in Japan, both contracting parties to ICAT by the way, which was receiving fish from non-contracting vessels from Belize."
Il a également découvert un navire de transport appartenant au Japon et battant pavillon panaméen, en l' occurrence deux pays signataires de la CICTA, qui recevait le produit de la pêche de navires non-signataires en provenance de Belize.