Scottish Fish Farm Production Survey 2011

3. ATLANTIC SALMON - PRODUCTION

Production

Production survey information was collected from all 27 companies actively involved in Atlantic salmon production, farming 254 active sites. This figure represents the entire industry operating in Scotland.

Table 24: Annual production of Atlantic salmon (tonnes) during 1991-2011 and projected production in 2012

Year	Tonnes	Percentage difference	Year	Tonnes	Percentage difference
1991	40,593	25	2002	144,589	4
1992	36,101	-11	2003	169,736	17
1993	48,691	35	2004	158,099	-7
1994	64,066	32	2005	129,588	-18
1995	70,060	9	2006	131,847	2
1996	83,121	19	2007	129,930	-1.4
1997	99,197	19	2008	128,606	-1
1998	110,897	12	2009	144,247	12
1999	126,686	14	2010	154,164	6.9
2000	128,959	2	2011	158,018	2.5
2001	138,519	7	2012	158,026*

*industry estimate of projected tonnage based on stocks currently being on-grown

The total production of Atlantic salmon during 2011 was 158,018 tonnes, an increase of 3,854 tonnes (2.5%) on the 2010 production.

Escapes

There were nine incidents involving the loss of a total of 402,134 fish from seawater Atlantic salmon sites in 2011. There were two additional reported incidents where farms confirmed there was no loss of fish.

Table 25: Number (000's), production (tonnes) of salmon harvested and mean fish weight (kg) per year class during 2001-2011

	Year of smolt input	Year of harvest	Number (000's)	Production (tonnes)	Mean weight at harvest (kg)
Harvest in year 0 ( i.e. in year of input)	2001	2001	557	1,227	2.2
	2002	2002	272	824	3.0
	2003	2003	82	276	3.4
	2004	2004	168	319	1.9
	2005	2005	0	0	0
	2006	2006	115	211	1.8
	2007	2007	23	40	1.7
	2008	2008	116	216	1.9
	2009	2009	81	178	2.2
	2010	2010	128	268	2.1
	2011	2011	109	307	2.8
Harvest in year 1	2000	2001	22,726	96,539	4.2
	2001	2002	23,528	90,230	3.8
	2002	2003	22,602	96,205	4.3
	2003	2004	19,596	85,792	4.4
	2004	2005	15,075	67,738	4.5
	2005	2006	14,036	64,099	4.6
	2006	2007	13,787	60,890	4.4
	2007	2008	13,011	54,759	4.2
	2008	2009	16,338	77,621	4.7
	2009	2010	18,266	85,826	4.7
	2010	2011	18,694	91,105	4.9
Harvest in year 2	1999	2001	9,096	40,754	4.5
	2000	2002	11,354	53,535	4.7
	2001	2003	15,619	73,255	4.7
	2002	2004	15,555	71,988	4.6
	2003	2005	13,920	61,850	4.4
	2004	2006	14,237	67,537	4.7
	2005	2007	14,999	69,000	4.6
	2006	2008	15,881	73,631	4.6
	2007	2009	14,132	66,448	4.7
	2008	2010	13,666	68,070	5.0
	2009	2011	13,772	66,606	4.8

Table 26: Number (000's) and production (tonnes) of grilse and pre-salmon harvested during 2001-2011

Year	Grilse (January-August)			Pre-salmon (September-December)
	Number	Tonnes	Average weight (kg)	Number	Tonnes	Average weight (kg)
2001	11,072	42,065	3.8	11,654	54,474	4.7
2002	9,872	33,609	3.4	13,656	56,621	4.1
2003	8,560	32,977	3.8	14,042	63,228	4.5
2004	6,824	27,710	4.1	12,772	58,082	4.5
2005	5,662	22,972	4.1	9,413	44,766	4.7
2006	4,357	18,162	4.2	9,679	45,937	4.7
2007	3,823	15,811	4.1	9,964	45,079	4.5
2008	3,716	15,296	4.1	9,295	39,463	4.2
2009	5,631	23,857	4.2	10,707	53,764	5.0
2010	6,877	29,733	4.3	11,389	56,093	4.9
2011	7,604	35,146	4.6	11,090	55,959	5.0

Table 27: Percentage (by weight) of annual production by growth stage harvested during 2003-2011

Year	2003	2004	2005	2006	2007	2008	2009	2010	2011
Growth stage	-	-	-	-	-	-	-	-	-
Input year fish	<1	<1	0	<1	<1	<1	<1	<1	<1
Grilse	19	17	18	13	12	12	16	19	22
Pre-salmon	37	37	34	35	34	31	37	36	35
Salmon	43	45	48	51	53	57	46	44	42

Survival and Production in Smolt Year Classes

Table 28: Survival and production in smolt year classes during 1994-2011

		Harvest year 0				Harvest year 1				Harvest year 2
Year of smolt input	Smolt input (000's)	Number (000's)	Weight (tonnes)	Mean weight (kg)	% harvest	Number (000's)	Weight (tonnes)	Mean weight (kg)	% harvest	Number (000's)	Weight (tonnes)	Mean weight (kg)	% harvest	Total % of year class harvested	Year class weight (tonnes)	Yield per smolt (kg)
1994	21,953	260	388	1.5	1.2	14,420	47,775	3.3	65.7	5,408	24,485	4.5	24.6	91.5	72,629	3.31
1995	26,786	206	269	1.8	0.8	17,132	57,998	3.4	64.0	6,195	27,263	4.4	23.1	87.8	85,530	3.19
1996	32,906	315	638	2.0	1.9	20,245	71,349	3.5	61.5	5,148	21,953	4.3	15.6	78.1	93,940	2.85
1997	42,766	282	585	2.1	0.7	29,014	86,783	3.0	67.8	9,027	40,098	4.4	21.1	89.6	127,466	2.98
1998	45,870	696	2,048	2.9	1.5	22,556	83,823	3.7	49.2	8,450	36,323	4.3	18.4	69.1	122,194	2.66
1999	41,106	1,000	2,763	2.8	2.4	23,077	89,963	3.9	56.1	9,096	40,754	4.5	22.1	80.6	133,480	3.25
2000	45,185	765	2,673	3.5	1.7	22,726	96,539	4.2	50.3	11,354	53,535	4.7	25.1	77.1	152,747	3.38
2001	48,643	557	1,227	2.2	1.1	23,528	90,230	3.8	48.4	15,619	73,255	4.7	32.1	81.6	164,712	3.39
2002	50,086	272	824	3.0	0.5	22,602	96,205	4.3	45.1	15,555	71,988	4.6	31.1	76.7	169,017	3.37
2003	43,083	82	276	3.4	0.2	19,596	85,792	4.4	45.5	13,920	61,850	4.4	32.3	78.0	147,918	3.43
2004	39,041	168	319	1.9	0.4	15,075	67,738	4.5	38.6	14,237	67,537	4.7	36.5	75.5	135,594	3.47
2005	37,168	-	-	-	-	14,036	64,099	4.6	37.8	14,999	69,000	4.6	40.3	78.1	133,099	3.58
2006	41,091	115	211	1.8	0.3	13,787	60,890	4.4	33.5	15,881	73,631	4.6	38.6	72.5	134,732	3.28
2007	37,853	23	40	1.7	0.06	13,011	54,759	4.2	34.4	14,133	66,448	4.7	37.3	71.8	121,247	3.20
2008	36,662	116	216	1.9	0.3	16,338	77,621	4.7	44.6	13,666	68,070	5.0	37.3	82.2	145,907	3.98
2009	38,548	81	178	2.2	0.2	18,266	85,826	4.7	47.4	13,772	66,606	4.8	35.7	83.3	152,610	3.96
2010	38,490	128	268	2.1	0.3	18,694	91,105	4.9	48.6
2011	42,733	109	307	2.8	0.3

In 2009, the last year for which survival can be calculated, the survival rate from smolt input to harvest was 83.3%. The 2009 year class displayed a higher survival rate than that noted in 2008, and was higher than the survival averaged over the last 15 year-classes.

Of the 2010 year class, 48.9% of the input has been harvested, 1.3% higher than the average harvest of fish one year after input in the 2009 year class. The average weight increased to 4.9 kg.

In 2011, the harvest of fish from the 2011 smolt input remained the same at 0.3%.

Smolts to Sea

Table 29: Number (000's) and origin of smolts put to sea during 1999-2011

Year	Smolts put to sea (000's)				Total (000's)	Scottish Origin	English Origin		Other Origin
	S½	S1	S1½	S2		%	(000's)	%	(000's)	%
1999	11,585	29,119	335	68	41,107	94	2,221	5	600	1
2000	9,517	35,176	399	93	45,185	92	3,396	8	0	0
2001	14,118	34,321	171	33	48,643	98	1,183	2	0	0
2002	15,850	32,761	1,475	0	50,086	94	1,564	3	1,676	3
2003	14,534	28,283	986	0	43,803	93	2,590	6	325	>1
2004	14,044	23,776	1,221	0	39,041	97	634	2	541	>1
2005	13,051	22,501	1,616	0	37,168	96	1,594	4	0	0
2006	15,578	23,733	1,779	0	41,090	96	1,257	3	272	>1
2007	14,665	23,188	0	0	37,853	94	1,747	5	420	1
2008	11,101	25,561	0	0	36,662	96	1,418	4	0	0
2009	14,967	23,581	0	0	38,548	95	1,700	4	105	<1
2010	14,069	24,421	0	0	38,490	95	1,541	4	120	<1
2011	17,721	25,012	0	0	42,733	96	1,765	4	0	0

The total number of smolts put to sea in 2011 was 42.7 million. The smolt input comprised mainly S1 smolts (59%), and the proportion of photoperiod adjusted fish (S½ smolts) input increased to 41%. Four percent of smolts input into Scottish salmon farms were sourced from outwith Scotland. This is the same proportion observed in 2010.

Survival and Production in Smolt Year Classes by Production Area

Table 30: Number (000's) of smolts put to sea and year class survival by area during 2000-2011

Region	Smolts put to sea (000's)		Harvest in year 0			Harvest in year 1			Harvest in year 2			Total Harvest (=survival)
	Year	No	Year	No	%	Year	No	%	Year	No	%	No	%
North West	2000	11,308	2000	457	4.0	2001	6,754	59.7	2002	2,144	19.0	9,355	82.7
	2001	13,767	2001	93	0.7	2002	8,112	58.9	2003	2,455	17.8	10,660	77.4
	2002	12,634	2002	135	1.1	2003	7,007	55.5	2004	3,113	24.6	10,255	81.2
	2003	13,103	2003	-	-	2004	7,667	58.5	2005	2,847	21.7	10,514	80.2
	2004	9,642	2004	168	1.7	2005	4,516	46.8	2006	2,978	30.9	7,662	79.5
	2005	10,888	2005	-	-	2006	5,796	53.2	2007	2,914	26.8	8,710	80.0
	2006	10,403	2006	115	1.1	2007	4,300	41.3	2008	3,664	35.2	8,079	77.7
	2007	9,563	2007	23	0.2	2008	5,394	56.4	2009	1,850	19.3	7,267	75.9
	2008	9,099	2008	69	0.8	2009	4,897	53.8	2010	2,687	29.5	7,653	84.1
	2009	9,986	2009	42	0.4	2010	7,045	70.5	2011	2,003	20.1	9,090	91.0
	2010	9,924	2010	117	1.2	2011	6,324	63.7
	2011	12,605	2011	53	0.4
Orkney	2000	2,604	2000	-	-	2001	670	25.7	2002	597	22.9	1,267	48.6
	2001	2,932	2001	-	-	2002	1,369	46.7	2003	1,464	49.9	2,833	96.6
	2002	2,741	2002	-	-	2003	1,169	42.6	2004	742	27.1	1,911	69.7
	2003	2,964	2003	-	-	2004	1,141	38.5	2005	980	33.1	2,121	71.6
	2004	1,842	2004	-	-	2005	480	26.0	2006	416	22.6	896	48.6
	2005	2,192	2005	-	-	2006	598	27.3	2007	602	27.4	1,200	54.7
	2006	1,622	2006	-	-	2007	433	26.7	2008	586	36.1	1,019	62.8
	2007	1,408	2007	-	-	2008	594	42.2	2009	741	52.6	1,335	94.8
	2008	1,912	2008	-	-	2009	507	26.5	2010	1,120	58.6	1,627	85.1
	2009	1,154	2009	-	-	2010	741	64.2	2011	95	8.2	836	72.4
	2010	2,557	2010	-	-	2011	1,126	44.0
	2011	2,718	2011	-	-
Shetland	2000	15,096	2000	-	-	2001	5,102	33.8	2002	4,578	30.3	9,680	64.1
	2001	17,398	2001	123	0.7	2002	6,465	37.2	2003	7,973	45.8	14,561	83.7
	2002	17,260	2002	-	-	2003	5,850	33.9	2004	5,675	32.9	11,525	66.8
	2003	14,446	2003	-	-	2004	6,031	41.7	2005	4,071	28.2	10,102	69.9
	2004	12,372	2004	-	-	2005	4,220	34.1	2006	4,040	32.7	8,260	66.8
	2005	10,824	2005	-	-	2006	4,162	38.4	2007	4,175	38.6	8,337	77.0
	2006	13,180	2006	-	-	2007	4,578	34.7	2008	5,349	40.6	9,927	75.3
	2007	14,947	2007	-	-	2008	4,530	30.3	2009	4,930	33.0	9,460	63.3
	2008	13,929	2008	47	0.3	2009	4,992	35.8	2010	4,659	33.4	9,698	69.6
	2009	10,031	2009	29	0.3	2010	4,201	41.9	2011	3,234	32.2	7,464	74.4
	2010	11,573	2010	-	-	2011	4,134	35.7
	2011	11,206	2011	49	0.4
South West	2000	7,851	2000	110	1.4	2001	4,554	58.0	2002	2,925	37.3	7,589	96.7
	2001	7,667	2001	-	-	2002	3,014	39.3	2003	3,022	39.4	6,036	78.7
	2002	7,403	2002	-	-	2003	3,761	50.8	2004	2,808	37.9	6,569	88.7
	2003	6,834	2003	-	-	2004	2,110	30.9	2005	3,646	53.3	5,756	84.2
	2004	6,786	2004	-	-	2005	3,281	48.4	2006	2,722	40.1	6,003	88.5
	2005	6,589	2005	-	-	2006	2,054	31.2	2007	4,175	63.3	6,229	94.5
	2006	7,032	2006	-	-	2007	2,677	38.1	2008	3,427	48.7	6,104	86.8
	2007	6,135	2007	-	-	2008	980	16.0	2009	3,289	53.6	4,269	69.6
	2008	6,507	2008	-	-	2009	4,153	63.8	2010	2,969	45.6	7,122	109.4*
	2009	8,200	2009	10	0.1	2010	2,700	32.9	2011	4,697	57.3	7,407	90.3
	2010	6,565	2010	12	0.2	2011	3,000	45.7
	2011	7,493	2011	-	-
Western Isles	2000	8,325	2000	198	2.4	2001	5,646	67.8	2002	1,110	13.3	6,954	83.5
	2001	6,879	2001	341	5.0	2002	4,568	66.4	2003	705	10.2	5,614	81.6
	2002	10,048	2002	137	1.4	2003	4,815	47.9	2004	3,217	32.0	8,169	81.3
	2003	6,456	2003	82	1.3	2004	2,647	41.0	2005	2,377	36.8	5,106	79.1
	2004	8,399	2004	-	-	2005	2,578	30.7	2006	4,081	48.6	6,659	79.3
	2005	6,675	2005	-	-	2006	1,426	21.4	2007	3,133	46.9	4,559	68.3
	2006	8,853	2006	-	-	2007	1,799	20.3	2008	2,855	32.2	4,654	52.6
	2007	5,800	2007	-	-	2008	1,513	26.1	2009	3,320	57.2	4,833	83.3
	2008	5,214	2008	-	-	2009	1,789	34.3	2010	2,231	42.8	4,020	77.1
	2009	9,177	2009	-	-	2010	3,579	39.0	2011	3,743	40.8	7,322	79.8
	2010	7,870	2010	-	-	2011	4,110	52.2
	2011	8,711	2011	7	0.1

* The survival of the 2008 smolt input in the South West is over 100% due to the practice of putting smolts to sea in one region and subsequently moving them to another sea water site in another region for harvest.

Figure 3: The distribution of active salmon production sites in 2011

Staffing

Table 31: Number of staff employed in salmon production during 2001-2011

Year		2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
Staff	F/T	1,066	1,083	1,066	1,019	851	790	798	849	874	944	923
	P/T	191	223	151	142	128	81	118	100	89	120	90
Total staff		1,257	1,306	1,217	1,161	979	871	916	949	963	1,064	1,013
Productivity (tonnes/person)		110.2	110.7	139.5	136.2	132.4	151.4	141.8	135.5	149.8	144.9	156.0

The total number of staff employed in salmon production in 2011 was 1,013, a decrease of 51 compared with 2010. The staffing figures collected refer specifically to the production of salmon and do not include figures for staff involved with processing or marketing activities. Productivity increased from 144.9 to 156.0 tonnes production per person.

Production Methods

Table 32: Production methods, capacity, tonnage and average stocking densities (kg/m ³) during 2009-2011

Method	Number of sites			Total capacity (000's cubic metres)			Production (tonnes)
	2009	2010	2011	2009	2010	2011	2009	2010	2011
Seawater tanks	1	2	2	5.9	6.3	6.1	88	195	141
Seawater cages	253	247	252	16,515	16,894	17,152	144,159	153,969	157,877
For cage sites: ratio of production (kg) to cage capacity (m 3)							8.7	9.1	9.2

The vast majority of the fish were produced in seawater cages. There were 141 tonnes of production from seawater tank sites in 2011. This reflects the continued high installation and running costs incurred in operating seawater tank systems. Most seawater tank capacity has now been re-deployed for the production of other species or salmon broodstock.

Sea cage capacity increased by 258,000 m ³ during 2011. The number of sea cage sites in production increased by five. Production efficiency in cages, measured as the ratio of fish weight in kilograms produced per cubic metre increased to 9.2 kg/m ³ in 2011. In cage sites, the ratio of production (expressed in kilograms) to cage capacity (expressed in cubic metres) was 8.7, 9.1 and 9.2 in 2009, 2010 and 2011 respectively.

Scale of Production by Site

Table 33: Number of sites shown in relation to their production grouping and percentage share of production 2001-2011

Production grouping (tonnes)	0	1-50	51- 100	101- 200	201- 500	501- 1,000	>1,000	Total
								Sites*	Tonnes
2001	148	9	4	28	41	39	51	320	138,519
2002	131	10	10	25	50	51	51	328	144,589
2003	125	6	14	13	53	45	70	326	169,736
2004	122	10	7	25	41	55	55	315	158,099
2005	112	8	13	16	41	37	51	278	129,588
2006	95	10	10	16	29	30	62	252	131,847
2007	89	9	8	19	33	34	55	247	129,930
2008	118	7	9	15	22	29	57	257	128,606
2009	104	12	12	10	33	25	58	254	144,247
2010	109	5	6	10	33	22	64	249	154,164
2011	106	9	7	9	28	29	66	254	158,018
2001	0	0.2	0.2	2.9	10.0	20.8	65.9	-	-
2002	0	0.2	0.5	2.7	12.8	26.5	57.3	-	-
2003	0	0.1	0.6	1.2	10.4	19.7	68	-	-
2004	0	0.1	0.4	2.4	9.4	26.1	61.6	-	-
2005	0	0.2	0.7	1.9	10.8	20.5	65.9	-	-
2006	0	0.2	0.6	1.8	7.9	15.9	73.6	-	-
2007	0	0.2	0.4	2.3	8.3	19.0	69.8	-	-
2008	0	0.1	0.5	1.6	5.8	15.9	76	-	-
2009	0	0.2	0.6	1.0	7.7	13.0	77.5	-	-
2010	0	0.1	0.3	0.9	7.3	10.8	80.6	-	-
2011	0	0.2	0.3	0.8	6.4	13.4	78.9	-	-

*Includes farms stocked but having no production.

In 2011, there was a decrease of one in the number of sites producing 1 to 500 tonnes and an increase of nine in those sites producing over 500 tonnes. This shows a continuing trend towards production in larger sites.

Company Productivity

Table 34: Number of companies grouped by production (tonnes), manpower and productivity (tonnes per person) during 2010-2011

Total Tonnage		0-100	101-200	201-400	401-700	701-1,000	1,001-2,000	>2,000	Total
No. of companies	2010	11	3	1	2	1	3	9	30
	2011	10	2	1	2	1	2	9	27
No. of tonnes	2010	41	509	385	870	955	3,911	147,493	154,164
	2011	48	245	209	1,021	753	2,277	153,465	158,018
Manpower (total)	2010	7	21	12	6	8	62	948	1,064
	2011	14	13	6	12	5	42	921	1,013
Productivity (tonnes/person)	2010	6	24	32	145	119	63	156	145
	2011	3	19	35	85	151	54	167	156

The greatest productivity (167 tonnes per person) was achieved in the companies having a production greater than 2,000 tonnes and the least (three tonnes per person) in the companies producing the smallest tonnages. In comparison with 2010, the average company productivity increased from 145 to 156 tonnes per person.

Overall, production was dominated by nine companies in 2011 which between them accounted for over 97% of Scotland's salmon production.

Manpower and Production by Production Area

Table 35: Manpower and production (tonnes) by area 2002-2011 and projected production in 2012

Region	Year	Staff		Annual Production	Productivity (t/person)	Year of input		Grilse		Pre-salmon		Salmon
		F/T	P/T			Tonnes	Mean weight (kg)	Tonnes	Mean weight (kg)	Tonnes	Mean weight (kg)	Tonnes	Mean weight (kg)
North West	2002	366	77	40,156	91	437	3.2	11,819	3.2	17,772	4.0	10,128	4.7
	2003	259	32	40,425	139	-	-	12,250	3.7	15,971	4.3	12,204	5.0
	2004	321	38	48,609	135	319	1.9	10,912	4.0	22,586	4.6	14,792	4.7
	2005	267	31	32,439	109	-	-	8,816	3.9	10,608	4.7	13,015	4.6
	2006	203	23	40,219	178	211	1.8	8,742	4.2	16,995	4.6	14,271	4.8
	2007	277	44	33,541	104	40	1.7	6,674	4.1	13,212	4.9	13,615	4.7
	2008	280	34	41,250	131	125	1.8	7,817	4.2	15,997	4.5	17,311	4.7
	2009	256	32	35,295	122	75	1.8	9,777	4.7	15,860	5.6	9,583	5.2
	2010	294	44	47,353	140	239	2.0	15,895	4.4	17,837	5.1	13,382	5.0
	2011	303	38	41,656	122	174	3.3	13,152	4.3	16,879	5.1	11,451	5.7
	2012			51,859*
Orkney	2002	80	11	6,565	72	-	-	1,949	3.2	2,649	3.5	1,967	3.3
	2003	121	15	10,740	79	-	-	1,016	3.6	3,508	4.0	6,216	4.2
	2004	68	10	6,600	85	-	-	1,877	3.3	2,107	3.6	2,616	3.5
	2005	47	4	5,183	102	-	-	989	3.5	805	4.1	3,389	3.5
	2006	72	3	3,724	50	-	-	509	3.1	1,689	3.9	1,526	3.7
	2007	41	7	4,432	92	-	-	196	3.9	1,657	4.3	2,579	4.3
	2008	60	5	5,716	88	-	-	811	4.2	1,747	4.3	3,158	5.4
	2009	47	2	6,220	127	-	-	754	4.6	1,793	5.2	3,673	4.9
	2010	58	2	9,388	156	-	-	1,221	4.1	2,279	5.1	5,888	5.3
	2011	69	0	6,369	92	-	-	3,508	5.1	2,355	5.4	506	5.3
	2012			11,469*
Shetland	2002	238	46	49,341	174	-	-	7,107	3.6	19,646	4.4	22,588	4.9
	2003	222	48	61,685	228	-	-	3,898	3.9	21,698	4.5	36,089	4.5
	2004	185	27	53,101	250	-	-	6,732	4.2	20,543	4.6	25,826	4.5
	2005	162	33	38,946	200	-	-	3,424	4.4	16,296	4.7	19,226	4.7
	2006	190	18	39,278	189	-	-	3,765	4.3	16,134	4.9	19,379	4.8
	2007	182	25	40,795	197	-	-	2,663	4.5	17,838	4.5	20,294	4.9
	2008	202	26	42,593	187	91	1.9	3,970	4.1	13,982	3.9	24,550	4.6
	2009	188	22	43,785	208	65	2.3	4,873	3.3	16,183	4.6	22,664	4.6
	2010	178	23	45,439	226	-	-	3,624	4.9	17,179	5.0	24,636	5.3
	2011	189	22	35,493	168	118	2.4	4,611	4.7	16,071	5.1	14,693	4.5
	2012			46,224*
South West	2002	196	54	26,351	105	-	-	2,992	3.5	9,112	4.2	14,247	4.9
	2003	218	35	33,583	133	-	-	4,329	4.1	13,407	4.9	15,847	5.2
	2004	219	34	23,911	95	-	-	2,733	4.1	6,832	4.7	14,346	5.1
	2005	188	36	33,056	148	-	-	4,675	4.7	11,430	5.0	16,951	4.6
	2006	181	22	25,460	125	-	-	2,467	4.4	7,920	5.3	15,073	5.5
	2007	162	36	31,353	158	-	-	4,309	4.1	7,069	4.3	19,975	4.8
	2008	173	21	20,584	106	-	-	1,212	4.0	3,108	4.6	16,264	4.7
	2009	199	23	35,726	161	38	3.5	4,615	4.6	15,988	5.1	15,085	4.6
	2010	231	39	27,751	103	29	2.5	6,032	4.2	7,118	5.7	14,572	4.9
	2011	212	17	37,157	162	-	-	3,618	4.8	10,899	4.8	22,640	4.8
	2012			22,247*
Western Isles	2002	203	35	22,176	93	387	2.8	9,742	3.6	7,442	4.0	4,605	4.2
	2003	246	21	23,303	87	276	3.4	11,484	3.9	8,644	4.6	2,899	4.1
	2004	226	33	25,878	100	-	-	5,456	4.1	6,014	4.5	14,408	4.5
	2005	187	24	19,964	95	-	-	5,068	3.8	5,627	4.5	9,269	3.9
	2006	144	15	23,166	146	-	-	2,679	4.0	3,199	4.3	17,288	4.2
	2007	136	6	19,809	140	-	-	1,969	3.8	5,303	4.2	12,537	4.0
	2008	134	14	18,463	125	-	-	1,486	3.8	4,629	4.1	12,348	4.3
	2009	184	10	23,221	120	-	-	3,838	4.1	3,940	4.6	15,443	4.6
	2010	183	12	24,233	124	-	-	2,961	3.7	11,680	4.2	9,592	4.3
	2011	150	13	37,343	229	15	2.1	10,257	4.7	9,755	5.0	17,316	4.6
	2012			26,227*
All Scotland	2002	1,083	223	144,589	111	824	3.0	33,609	3.4	56,621	4.1	53,535	4.7
	2003	1,066	151	169,736	139	276	3.4	32,977	3.8	63,228	4.5	73,255	4.7
	2004	1,019	142	158,099	136	319	1.9	27,710	4.1	58,082	4.5	71,988	4.6
	2005	851	128	129,588	132	-	-	22,972	4.1	44,766	4.7	61,850	4.4
	2006	790	81	131,847	151	211	1.8	18,162	4.2	45,937	4.7	67,537	4.7
	2007	798	118	129,930	142	40	1.7	15,811	4.1	45,079	4.5	69,000	4.6
	2008	849	100	128,606	135	216	1.9	15,296	4.1	39,463	4.2	73,631	4.6
	2009	874	89	144,247	150	178	2.2	23,857	4.2	53,764	5.0	66,448	4.7
	2010	944	120	154,164	145	268	2.1	29,733	4.3	56,093	4.9	68,070	5.0
	2011	923	90	158,018	156	307	2.8	35,146	4.6	55,959	5.0	66,606	4.8
	2012			158,026*

*Estimated production in 2012

Company and Site Data

Table 36: Number of companies and sites engaged in salmon production during 2001-2011

Year	Number of companies			Number of sites
	Producing	Non-producing	Total	Producing	Non- producing	Total
2001	81	6	87	238	82	320
2002	73	11	84	197	131	328
2003	63	18	81	201	125	326
2004	57	12	69	193	122	315
2005	40	10	50	166	112	278
2006	32	12	44	157	95	252
2007	28	10	38	158	89	247
2008	26	9	35	139	118	257
2009	25	6	31	104	150	254
2010	20	10	30	140	109	249
2011	21	6	27	106	148	254

The number of companies authorised and actively producing salmon in 2011 was 21, an increase of one on the 2010 figure. Six companies remained active and authorised, although not producing salmon for harvest in 2011. This continued the trend of salmon production being concentrated within fewer companies. These 27 companies have 254 registered active sites, although not all active sites may have produced fish for harvest in 2011.

Fallowing

Table 37: Number of seawater cage sites employing a fallow period during 2002-2011

Year	Fallow Period (weeks)						Total
	0	<4	4-8	9-26	27-51	52
2002	99	8	85	85	24	27	328
2003	95	14	68	80	40	29	326
2004	82	9	52	95	42	35	315
2005	75	11	36	86	37	33	278
2006	67	10	44	74	37	20	252
2007	67	16	41	61	38	24	247
2008	53	16	28	92	40	28	257
2009	51	3	30	86	46	37	253
2010	53	8	26	83	41	36	247
2011	60	10	31	85	27	39	252

Of the 252 seawater cage sites recorded as being active in 2011, 153 farms were fallow for a variable period, whilst 39 farms were fallow for the whole of 2011. The normal production cycle in seawater varies in length between 18 months and two years and a fallow period at the end of production can break the cycle of disease or parasitic infections. There were 60 sites that had no fallow period in 2011.

Broodstock Sites

Table 38: Number of sites holding broodstock during 2000-2011

Year	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
Broodstock sites	18	15	19	20	15	15	17	20	20	11	10	11

In 2011, the number of freshwater and seawater sites holding broodstock increased to 11. The number of sites holding broodstock in any one year can be variable, as can be seen from the previous years' figures, which indicate no obvious trend. A total of 5,263 fish were stripped, yielding just over 78 million ova, which can be calculated to show an average ova yield per fish of 14,820.

Organic Production

Of the 252 seawater cage sites recorded as being active in Atlantic salmon production in 2011, ten were certified as organic producing 3,104 tonnes. This is the second year that data on organic production has been reported.