Appendix XI

United Kingdom

Sector segmentation to be applied for the collection of aquaculture data

	Fish farming techniques^f1				Shellfish farming techniques
Enterprises should be segmented according to their main farming technique.
Hatcheries and nurseries are defined as 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. Further juveniles stages of aquatic animals are considered being produced in nurseries. When hatcheries and nurseries are closely associated, statistics shall refer only to the latest juvenile stage produced (COM(2006) 864).
Combined is defined as enterprises using hatcheries, nurseries and on growing techniques.
Cages are defined as 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 (COM(2006) 864).
‘Bottom’ techniques cover shellfish farming in inter-tidal areas (directly on the ground or surelevated).
	Land based farms			Cages	Shellfish farming techniques
	Hatcheries and Nurseries^f2	On growing	Combined^f3	Cages^f4	Rafts	Long line	Bottom^f5	Other
Salmon
Trout
Sea bass & Sea bream
Carp
Other fresh water fish
Other marine fish
Mussel
Oyster
Clam
Other shellfish

Annotations

f1: Enterprises should be segmented according to their main farming technique.
f2: Hatcheries and nurseries are defined as 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. Further juveniles stages of aquatic animals are considered being produced in nurseries. When hatcheries and nurseries are closely associated, statistics shall refer only to the latest juvenile stage produced (COM(2006) 864).
f3: Combined is defined as enterprises using hatcheries, nurseries and on growing techniques.
f4: Cages are defined as 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 (COM(2006) 864).
f5: ‘Bottom’ techniques cover shellfish farming in inter-tidal areas (directly on the ground or surelevated).