- Apply the personal hygiene standards established by the manuals or guides of correct practices, guaranteeing the safety and health of food products in the work areas. - Maintain work areas and facilities in fishmongers and fish industries, within the standards required by production. - Prepare and maintain in use the equipment and auxiliary production means, according to the procedure manuals and instructions for use, in order to guarantee production. - Carry out prior treatments on fishing products with specific techniques and methods, following pre-established procedures for subsequent industrial use or in commercial establishments, guaranteeing quality, hygiene and production levels. - Prepare and incorporate substances (salting, governing liquids, oils, preservative solutions) to stabilize the products, in accordance with the procedure manual and work instructions, guaranteeing quality and hygiene. - Prepare and arrange fish and shellfish, cooking and cooling them, for treatment and subsequent conservation.