12. TABLES

Table 1 - Average number of vertebrae
Table 2 - Growth parameters of Sardina pilchardus
Table 3 - Catch, effort and catch per unit of effort in the fishing Zone A
Table 4 - Catch, effort and catch per unit of effort in the fishing Zone B
Table 5 - Catch, effort and catch per unit of effort in the fishing Zone C
Table 6 - Estimated annual fishing mortality rates, by age-groups in Zone A in the years 1974-1976
Table 7 - Estimated number of sardines (x 10⁶) of each age-group in Zone A present at the beginning of the years 1974, 1975 and 1976
Table 8 - Estimated annual fishing mortality rates in Zones A, (A + B), B and C in 1976, by age-group
Table 9 - Estimated number of sardines by age-group (x 10⁹) present at the beginning of 1976, by fishing zone
Table 10 - Average length and weight of sardine in the first trimester of 1977, by age
Table 11 - Estimates of total sardine biomass obtained from an acoustic survey and from cohort analysis, and of the exploited sardine biomass from data on catch and fishing mortality rate

Table 1 - Average number of vertebrae

Area of Capture of Sample	Number of Sardines	Average Number of Vertebrae	Author
Casablanca	633	50.86 ± 0.05	Belveze and Rami (in print)
Safi	1 536	50.69 ± 0.03	Belveze and Rami (in print)
Agadir	2 500	50.68 ± 0.02	Belveze and Rami (in print)
Tan Tan (28° 30’N)	451	50.63 ± 0.05	Belveze and Rami (in print)
20° 40’N	138	50.72 ± 0.1	Belveze and Rami (in print)
27° 40’N	191	50.65 ± 0.09	Belveze and Rami (in print)
20°N - 24°N	300	50.67 ± 0.06	Krzeptowski, 1975
24°N - 28°N	300	50.68 ± 0.06	Krzeptowski, 1975
27°N - 27° 40’N	1 173	50.65 ± 0.03	Bravo de Laguna et al., 1976

Table 2 - Growth parameters of Sardina pilchardus

Method	Season	Fishing Area	Fishing Zone	Authors	L¥	K	t0
Scalimetry	1st Quarter 1976	Agadir	(A)	Belvèze and Rami (ISPM) (in press)	20.27	0.981	0.025
Direct	1976	Agadir, Safi, Essaouira	(A)	Belvèze and Rami (ISPM) (in press)	21.23	0.68	-1.33
Direct	1st Quarter 1977	Agadir, Safi, Essaouira	(A)	Rami (ISPM) (unpublished)	22.38	0.352	-2.27
Direct	2nd Quarter 1977	Agadir, Safi, Essaouira	(A)	Rami (ISPM) (unpublished)	21.07	0.531	-0.79
Direct	3rd Quarter 1977	Agadir, Safi, Essaouira	(A)	Rami (ISPM) (unpublished)	22.23	0.421	-1.39
Scalimetry	January	P. Stafford	(B)	Belvèze and Rami (ISPM) (in press)	20.25	0.926	+0.06
Scalimetry	January	P. Stafford Males	(B)	Belvèze and Rami (ISPM) (in press)	20.06	0.906	+0.03
Scalimetry	January	P. Stafford Females	(B)	Belvèze and Rami (ISPM) (in press)	20.46	0.943	+0.08
Scalimetry	March 1975	South Cap Blanc	(C)	Belvèze and Rami (ISPM) (in press)	22.81	0.946	+0.22
Direct	2nd Quarter 1973, 1974, 1975, 1976		(C)	Krzeptowski (Poland) (1975)	24.62	0.371	-1.318

Table 3 - Catch, effort and catch per unit of effort in the fishing Zone A

Tear	Total Area Catch (1 000 t)	CPUE	1n CPUE	Total Effort	Effort (Average of 2 Years)
1962	120	236	5.46	508	-
1963	119	123	4.81	963	735.5
1964	128	122	4.80	1 045	1 004
1965	148	161	5.08	922	983.5
1966	238	232	5.45	1 023	972.5
1967	197	213	5.36	921	972
1968	162	177	5.18	913	917
1969	164	187	5.23	875	894
1970	161	151	5.02	1 071	973
1971	166	125	4.83	1 329	1 200
1972	174	111	4.71	1 558	1 443.5
1973	325	171	5.14	1 899	1 728.5
1974	204	114	4.74	1 797	1 848
1975	148	84	4.43	1 761	1 779
1976	177	92	4.52	1 929	1 445

Table 4 - Catch, effort and catch per unit of effort in the fishing Zone B

Year	Catch (tons)	Effort1	CPUE
1965	14 600	1 270	11.5
1966	20 879	1 491	14.0
1967	28 619	2 201	13.0
1968	32 345	2 156	15.0
1969	35 998	2 400	15.0
1970	49 910	3 697	13.5
1971	55 511	3 033	18.3
1972	46 594	3 328	14.0
1973	65 810	3 290	20.0
1974	80 486	3 593	22.4
1975	68 893	2 650	26
1976	117 450	3 414	34.4

¹ In fishing days, calculated from the Spanish CPUE

Table 5 - Catch, effort and catch per unit of effort in the fishing Zone C

Year	Total Catch (tons)	Catch per Unit of Effort	Total Effort	Effort (Average of 2 Years)
1973	53 500	7.8	6 860	-
1974	117 700	7.5	15 690	11 275
1975	173 600	6.2	28 000	21 845
1976	205 000	5.4	37 960	32 980

Table 6 - Estimated annual fishing mortality rates, by age-groups in Zone A in the years 1974-1976

Age	Year
	1974	1975	1976
I	0.17	0.10	0.50
II	0.49	0.77	0.76
III	0.42	0.88	0.65
IV		0.39	0.77

Table 7 - Estimated number of sardines (x 10⁶) of each age-group in Zone A present at the beginning of the years 1974, 1975 and 1976

Age	Year
	1974	1975	1976
I	9 544	9 511	4 900
II	8 081	3 565	3 813
III	4 844	2 317	749
IV	1 097	1 421	435

Table 8 - Estimated annual fishing mortality rates in Zones A, (A + B), B and C in 1976, by age-group

Age	Fishing Zone
	A	(A + B)	B	C
I	0.5	0.28	0.03	0.02
II	0.76	0.48	0.25	0.1
III	0.65	0.83	0.74	0.7
IV	0.77	0.75	0.61	1.3
V		0.9	0.94	0.9
VI			0.82	1.0

Table 9 - Estimated number of sardines by age-group (x 10⁹) present at the beginning of 1976, by fishing zone

Age	Fishing Zone
	A	(A + B)	B	C
I	4.9	8.0	2.3	3.1
II	3.8	7.8	3.9	5.2
III	0.7	1.9	1.5	3.1
IV	0.4	1.4	1.2	1.4
V	0.4	0.3	0.2	0.3
VI				0.03

Table 10 - Average length and weight of sardine in the first trimester of 1977, by age

Age	Average Length	Average Weight
I	153.0 mm	27.9 g
II	174.8 mm	42.2 g
III	185.3 mm	49.0 g
IV	200.6 mm	64.7 g

Table 11 - Estimates of total sardine biomass obtained from an acoustic survey and from cohort analysis, and of the exploited sardine biomass from data on catch and fishing mortality rate

Method	Biomass (tons)
	Acoustic survey	Cohort analysis	Catch and fishing mortality rate
Estimate for	January 1977	January 1976	Average 1976
Zone A) B) C	1 040 000 No observation	357 000* 380 000* 550 000*	220 000 149 000 256 000
Total	> 1 040 000	1 225 000	625 000

^* Not including yearclasses V and VI, which however play a rather insignificant role