zone
as defined in Regulation (EU) 2016/429 of the European Parliament and of the Council of…, Article 4, point (35) (Definitions)
‘zone’ means:
for terrestrial animals, an area of a Member State, third country or territory with a precise geographical delimitation, containing an animal subpopulation with a distinct health status with respect to a specific disease or specific diseases subject to appropriate surveillance, disease control and biosecurity measures;
for aquatic animals, a contiguous hydrological system with a distinct health status with respect to a specific disease or specific diseases that forms an area that is referred to in one of the following:
an entire water catchment from the source of a waterway to the estuary or lake;
more than one water catchment;
part of a water catchment from the source of a waterway to a barrier that prevents the introduction of a specific disease or diseases;
part of a coastal area with a precise geographical delimitation;
an estuary with a precise geographical delimitation;