The law that addresses your situation is Section 101 of Republic Act 10654, otherwise known as the “Philippine Fisheries Code”: “Section 101. Fishing in Marine Protected Areas, Fishery Reserves, Refuge and Sanctuaries. — It shall be unlawful to fish in marine protected areas, fishery reserves, refuge, or fish sanctuaries as declared by the Department or the LGUs.

Acosta, P. (2020, February 3). Fishing prohibited in marine sanctuaries. The Manila Times, p. A3.