A combined effort led by the Coast Guard Investigative Service and Coast Guard Marine Safety Office Miami has resulted in the arrests of foreign mariners on ships visiting Miami for using fraudulent merchant mariner licenses and training certificates. One mariner was arrested yesterday for operating with a fictitious Columbian International Convention on Standards of Training, Certification and Watch keeping for Seafarers (STCW) certificate. The individual was further determined to be an illegal alien and was turned over to the Immigration and Naturalization Service. Another similar arrest occurred this morning and more are anticipated this afternoon. "Our primary concern is maintaining waterway safety.