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1. ‘Freshwater’ means water which has a constantly negligible salinity.

2. ‘Saltwater’ means water where the salinity is appreciable. This may be water where the salinity is constantly high (e.g. seawater) or where the salinity is appreciable but not at a constantly high level (e.g. brackish water): the salinity may be subject to periodic variation due to the influx of fresh or seawaters.

3. ‘Species’ means the species of aquatic organisms identified using the international 3-alpha code as defined by the FAO (ASFIS list of species for fishery statistics purposes).

4. ‘FAO major areas’ means the geographical areas identified using the international numerical-2 code as defined by the FAO (CWP Handbook of fishery statistical standards. Section H: Fishing areas for statistical purposes). The FAO major areas covered for the purpose of this Regulation are the following: 5. ‘Ponds’ means relatively shallow and usually small bodies of still water or water with a low refreshment rate, most frequently artificially formed, but can also apply to natural pools, tarns, meres or small lakes.

6. ‘Hatcheries and nurseries’ means places for the artificial breeding, hatching and rearing through the early life stages of aquatic animals. For statistical purposes, hatcheries are limited to the production of fertilised eggs. First juvenile stages of aquatic animals are considered as being produced in nurseries.

7. ‘Enclosures and pens’ means areas of water confined by nets, mesh and other barriers allowing uncontrolled water interchange and distinguished by the fact that enclosures occupy the full water column between substrate and surface; pens and enclosures generally enclose a relatively large volume of water.

8. ‘Cages’ means open or covered enclosed structures constructed with net, mesh or any porous material allowing natural water interchange. These structures may be floating, suspended or fixed to the substrate but still permitting water interchange from below.

9. ‘Tanks and raceways’ means artificial units constructed above or below ground level capable of high rates of water interchange or with a high water turnover rate and highly controlled environment but without water recirculation.

10. ‘Recirculation systems’ means systems where the water is reused after some form of treatment (e.g. filtering).

11. ‘Transferred to a controlled environment’ means the intentional release for further aquaculture practices.

12. ‘Released to the wild’ means the intentional release for the restocking of rivers, lakes and other waters other than for aquaculture purposes. These releases may then be available for capture by fishing operations.

13. ‘Volume’ means:

(a) for fish, crustaceans and molluscs and other aquatic animals, the live weight equivalent of the product. For molluscs, the live weight shall include the weight of the shell;

(b) for aquatic plants, the wet weight of the product.

14. ‘Unit value’ means the total value (excluding invoiced value-added tax) of the production (in national currency) divided by the total volume of the production.