Appendix VIII

United Kingdom

List of transversal variables with sampling specification

Heading	Variable	Specification	Unit	Gear (Level 2 in the matrix)	Disaggregation Level^f1	Reference period
The disaggregation levels refer to appendix V (NB: the reference for metier or fishing activity is the level 6 of the Appendix IV (1-5)).
As defined in Regulation (EC) No 26/2004.
Some adjustments could be proposed by Regional Coordination Meetings.
For some variables, the disaggregation level of A is enough because $\underset{i}{Σ} A_{ij} {= B}_{i}$ … and $\underset{j}{Σ} A_{ij} {= C}_{j}$ (example: Hours fished), for others, $\underset{i}{Σ} A_{ij} {≠ B}_{i}$ … and $\underset{j}{Σ} A_{ij} {≠ C}_{j}$ (for example Fishing days, where two or more metiers can be practised during the same fishing day and accounted more than once).
If it is not possible to directly allocate landings from one trip into metiers, then this allocation should be based on rules agreed by STECF.
If possible, price data should be collected at the level A1 (see Appendix V) in order to calculate immediately the value of landings at this same level.
Capacity
	Number of vessels				C3	Annually
	GT, kW, Vessel Age^f2				C3	Annually
Effort
	Number of vessels				B1	Monthly
	Days at sea	See definition in Chapter I	Days	All gears	B1 and C3	Monthly
	Hours fished^f3		Hours	Dredges and Trawls	A1^f4	Monthly
	Fishing days	See definition in Chapter I	Days	All gears	All cells	Monthly
	kW * Fishing Days			Dredges and Trawls	All cells	Monthly
	GT * Fishing days			Dredges and Trawls	All cells	Monthly
	Number of trips		Number	All gears	All cells	Monthly
	Number of rigs		Number	Multi rig (level 4)	A1	Monthly
	Number of fishing operations		Number	Purse Seines	A1	Monthly
	Number of nets/Length		Number/meters	Nets	A1	Monthly
	Number of hooks, Number of lines		Number	Hook and Lines	A1	Monthly
	Numbers of pots, traps		Number	Traps	A1	Monthly
	Soaking time		Hours	All Passive gears	A1	Monthly
Landings
	Value of landings total and per commercial species^f5		Euro		B1 and C1	Monthly
	Live Weight of landings total and per species		Tonnes		A1	Monthly
	Prices by commercial species^f6		Euro/kg		B2 and C2	Monthly, Annually
	Conversion factor per species					Annual update

Annotations

Footnotes

f1: The disaggregation levels refer to appendix V (NB: the reference for metier or fishing activity is the level 6 of the Appendix IV (1-5)).
f2: As defined in Regulation (EC) No 26/2004.
f3: Some adjustments could be proposed by Regional Coordination Meetings.
f4: For some variables, the disaggregation level of A is enough because $\underset{i}{Σ} A_{ij} {= B}_{i}$ … and $\underset{j}{Σ} A_{ij} {= C}_{j}$ (example: Hours fished), for others, $\underset{i}{Σ} A_{ij} {≠ B}_{i}$ … and $\underset{j}{Σ} A_{ij} {≠ C}_{j}$ (for example Fishing days, where two or more metiers can be practised during the same fishing day and accounted more than once).
f5: If it is not possible to directly allocate landings from one trip into metiers, then this allocation should be based on rules agreed by STECF.
f6: If possible, price data should be collected at the level A1 (see Appendix V) in order to calculate immediately the value of landings at this same level.