1 . FISHERIES - CONSERVATION OF THE RESOURCES OF THE SEA - TECHNICAL CONSERVATION MEASURES - USE OF DEVICES OBSTRUCTING OR DIMINISHING THE MESH OF FISHING NETS - PROHIBITION - IMMEDIATE EFFECT - ABSENCE OF DETAILED IMPLEMENTING RULES - IRRELEVANT ( COUNCIL REGULATION NO 2527/80 , ART . 7 ) 2 . FISHERIES - CONSERVATION OF THE RESOURCES OF THE SEA - PERIOD PROVIDED FOR IN ARTICLE 102 OF THE ACT OF ACCESSION - EXPIRY - EXCLUSIVE POWERS OF THE COMMUNITY ( ACT OF ACCESSION , ART . 102 ) 3 . FISHERIES - CONSERVATION OF THE RESOURCES OF THE SEA - TECHNICAL CONSERVATION MEASURES - USE OF DEVICES OBSTRUCTING OR DIMINISHING THE MESH OF FISHING NETS - PROHIBITION - PERMISSION TO USE DEVICES FOR THE PROTECTION OF NETS - IMMEDIATE EFFECT - ABSENCE OF DETAILED IMPLEMENTING RULES - JURISDICTION OF COURTS - CRITERIA APPLICABLE ( COUNCIL REGULATION NO 2527/80 , ART . 7 )