(b)

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;

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Source: EUR-Lex (Cellar) · retrieved 2026-11-02 · Text as adopted (Official Journal); later amendments are not incorporated in this text.