1.The competent authority shall order operators of establishments keeping aquaculture animals of any species in the protection zone, other than the establishment in which the category A disease has been confirmed, to carry out at least the following measures in order to prevent and control the spread of the disease:
(a)without delay update the records of the inventory provided for in Article 73(1);
(b)when practicable, implement appropriate measures to limit any possible spread of the category A disease to and from any wild aquatic animals that might be in epidemiological contact with the establishment;
(c)prevent aquaculture animals from being removed from the establishment in which they are kept unless authorised by the competent authority;
(d)implement appropriate biosecurity measures to any product, piece of equipment, material or substance likely to spread the relevant category A disease;
(e)reduce the number of visitors to those which are strictly necessary to operate the establishment in a proper manner; and
(f)where practicable, implement appropriate means of cleaning and disinfection at the entry and exit of the establishment.
2.The competent authority shall order and supervise that the operator has processed or disposed of as the relevant category material in accordance with Regulation (EC) No 1069/2009 animal by-products from aquaculture animals of listed species that have died or have been killed, including molluscs shells with meat, in establishments keeping listed species within the protection zone.
3.The competent authority may decide after carrying out a risk assessment that Articles 87 and 88 only apply to aquaculture animals of listed species.