ANNEXES

Annex 1. Record of fishing operation
Annex 2. Anchovy - Length distributions and maturity stages
Annex 3. Small pelagic fish. Length distributions and maturity stages
Annex 4. Demersal fish. Length distribution and maturity stages
Annex 5. Shallow water shrimp. Design of the survey and worksheet for the computations

Annex 1. Record of fishing operation

ANNEX 1.

ANNEX 1.(cont.)

ANNEX 1.(cont.)

Annex 2. Anchovy - Length distributions and maturity stages

ANCHOVY - Stolephorus spp. - Total Length frequency distributions and maturity stages

Table 1. AHCHOVY - Total length frequency distributions by stations

Table 2. ANCHOVY - Maturity Stages

Stages	State	Description
Juvenile	Immature	Testes:	Small transparent, colourless to grey
		Ovaries:	Glassy transparent, compact wall and small volume. Eggs not visible with the naked, eye, but under the microscope they are glassy transparent, polygonal, curved, to one another.
2	Mature virgin	Testes:	Small, transparent reddish grey colour.
		Ovaries:	Translucent, of reddish to reddish grey colour, walls compact, volume solid and readily recognized. Under microscope the eggs are polygonal.
3	Developing stage	Testes:	Longer opaque, non-transparent, white in colour, wall compact, if pressed white milt runs out slowly.
		Ovaries:	Opaque orange to reddish white, wall richly vascularized. Contents very compact, but loose spherical translucent eggs present.
4	Mature	Testes:	Translucent creamy white. Milts runs out with slight pressure. Walls loose and soft.
		Ovaries:	Translucent, reddish, some orange in colour. Ovaries filled with loose, eggs which run out with slight pressure. All eggs are glassy transparent.
5	Spent	Testes:	Much shorter in length, dark grey to reddish grey with loose walls, and rich in blood vessels. Ho milts runs out when pressed.
		Ovaries:	Transparent, dark red, walls very loose with numerous folds, very much shorter and bloody. Lots of solid materials, but only with few eggs, sometimes already quite similar to stage 2.

Annex 3. Small pelagic fish. Length distributions and maturity stages

Size distribution of fish examined and Maturity stages of D. russellii and R. kanagurta

Size distribution of snail pelagic fish examined

Size distribution of snail pelagic fish examined (cont. 1)

Size distribution of snail pelagic fish examined (cont. 2)

Size distribution of snail pelagic fish examined (cont. 3)

TABLE 2. Maturity stages of D. russellii and. R. kanagurta

Annex 4. Demersal fish. Length distribution and maturity stages

Table 1. - DEMERSAL FISH - Length frequency distributions of Saurida undosquamis and Polynemus sextarius

DEMERSAL FISHES

Saurida undosquamis	Sub. Total	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	N		S2
											1	2	1	4	5	17	18	26	12	14	2	5	1	1	1		110	22.3	5.62
Polynemus sextarius	Angoche + Moebase	3	23	10	31	32	28	8	2	2	12	11	2	2	1												167	10.9	10.19
	Quelimane I + Beira			9	11	12	16	4	1	3	4	7	3														70	11.8	7.41
	Quelimane II	1	15	22	56	22	34	3	1																		154	9.8	1.81

Table 2. DEMERSAL FISH. Scale of maturity stages

Stages	State	Description
Juvenile	Immature	The gonads are slender, transparent. The colour is yellow to rose. Generally, it is difficult to determine the sex of the specimen at naked eye.
2	Mature virgin	Ovaries transparent. Blood vessels can be seen in the ovary wall. Ova small and not visible to naked eye. Testis are translucent, slender and round. The colour is rose pale or grey.
3	Ripening	Development of ovaries. Ovocytes translucent, the colour of ovaries range from yellow to orange. Ovary wale with several blood vessels. Ovocytes visibles to naked eye and yellow to orange. Testis are rose-grey and developped occupying about ½ of ventral cavity. Ho milt produced under pressure, excepting in last phase of this stage where it is possible to see some spermatozoons.
4	Ripe	Ovaries round. Occupying 1/3 of ventral cavity. The colour varies from species to species. In majority of cases are orange-red. Ovocytes translucent, which can be separate easily, and the size varies. Females in stage 4 to 5, presents the gonads with minimum weight and ovocytes transparent. End of spermatogenesis. Spermatic channels with mature spermatozoons, which are released with a notch.
5	Spent	Ovocytes transparent which are released by pressure of the abdomen. The rupture is synchronous. By pressing the abdomen, sperm is released. Testis are whitish and flabby. The size decrease, because of sperm release.
6	Recovering spent	Ovaries bloodshot, flabby and light. The cavity of ovary is big and contain remnants of disintegrating opaque and ripe ova, darkened or translucent which are adherent to the ovary walls. External sexual opening is big. Testis are slender and flabby. The colour is rise pale to bloodshot.

Remark: In case of doubt or if the specimen is in a intermediate stage, the stages 2-5, 3-4 or 4-5 are used.

Annex 5. Shallow water shrimp. Design of the survey and worksheet for the computations

Table 1. - Design of the survey

Strata definition

Based on strata definition of the last survey and on their recommendations (Brinca et all 1982) the 6 sub-areas had been subdivided in eighteen new strata.

Sub-area	Stratum	Geographic Limits	Depth boundaries
1	1	16°20’ - 16°47’5	5 - 20 m
2	2	16°47’5 - 17°15’	5 - 20 m
3	3.1.a	17°15' - 17°40’	5 - 25 m
	3.2.a
	3.1.b
	3.2.b	17°40’ - 17°52’5	25 - 45 m
4	4.1.a
	4.2.a	17°52’5 - 18°30’	5 - 25 m
	4.1.b
	4.2.b	18°30’ - 18°50’	25 - 45 m
5	5.1.a		5 - 20 m
	5.1.c	18°50’ - 19°15’	20 - 25 m
	5.2.a		25 - 45 m
	5.1.b		5 - 20 m
	5.1.d	19°15’ - 19°40’	20 - 25 m
	5.2.b		25 - 45 m
6	6.a	19°40’ - 19°50’	West of 35°40’
	6.b	19°50’ - 21°00’

Table 2. - Worksheet for the computation of the mean catch per tow for the total catch of shrimp

Table 3. - Worksheet for the computation of total shrimp biomass (in weight)

Swept area by tow = 1.4 × 1.852 × 0.018 Km²

a) Basic data

b) Results

	Stratum Estimates
	2	3				4				5				6		Total
		3.1.a	3.1.b	3.2.a	3.2.b	4.1.a	4.1.b	4.2.a	4.2.b	5.1.a	5.1.b	5.1.c	5.1.d	6.a	6.b
(Kg)	0.003	0.211	0.475	0	0	1.468	3.906	0.657	0	5.240	0	0.720	0.325	17.750	0	1.398
Ah (Km2)	1454	1753	1049	1063	458	1612	1070	2576	1091	1180	1173	789	1060	518	1324	18170
(ton)	0.09	7.9	10.7	0	0	50.7	89.5	36.2	0	132.4	0	12.2	7.4	196.9	0	544

Table 5. - Worksheet for the computation of P. indicus stock size +

a) Basic data

b) Results

	Stratum estimates
	2	3				4				5				6		Total
		3.1.a	3.1.1	3.2.a	3.2.b	4.1.a	4.1.b	4.2.a	4.2.b	5.1.a	5.1.b	5.1.c	5.1.d	6.a	6.b
(n°)	0.5	10.1	15.5	0	0	55.6	149.0	0	0	137.3	0	21.0	8.5	392	0	37.1
Ah (Km2)	1454	1753	1049	1063	458	1612	1070	2576	1091	1180	1175	789	1060	518	1324	18170
S × 103 (n°)	15.6	380.6	348.2	0	0	1919.2	3413.9	0	0	3469.3	0	354.8	192.9	4348.1	0	14 442.6

Table 6. - Worksheet for the computation of P.indicus stock size

a) Basic data

b) Results

	Stratum estimates
	2	3				4				5				6		Total
		3.1.a	3.1.b	3.2.a	3.2.b	4.1.a	4.1.b	4.2.a	4.2.b	5.1.a	5.1.b	5.1.c	5.1.d.	6.a	6.b
(n° )	0.5	6.7	5	0	0	9.8	24.0	0	0	43.7	0	7	3.5	236	0	13.3
Ah (Km2)	1454	1753	1049	1063	458	1612	1070	2576	1091	1180	1173	789	1060	518	1324	18170
S × 103 (n°)	15.6	251.5	112.3	0	0	338.3	549.9	0	0	1104.2	0	118.2	79.4	2617.7	0	5187.2

Table 7. - P. indicus - Estimates of stock size (in number) splitted by length group and by stratum

a) Length frequency distribution by stratum

b) Data weighted by total n° of each stratum

Total number in the bottom line and in the last column do not coincide with the sums of the values for the original values were divided by 10³ in order to allow a better reading of the table.

Table 8. - P. indicus - Estimates of stock size (in number) splitted by maturity stages and by stratum

a) Percentages of maturity stages by stratum (calculated by weighting each sample by the total number of each station and combining the results by stratum)

Strata	5.1.a	5.1.b	4.1.a	4.1.b	5.1.a	5.1.c	5.1.d	6.a
Maturity Stages
1	26.1	60.0	54.2	78.9	63.3	7.1	14.3	22.9
2	10.9	20.0	18.8	9.9	8.4	-		15.0
5	26.1		6.2	-	8.4	28.6	14.3	42.2
4	21.6		2.1	4.2	4.6	21.4		16.5
5	10.9		6.2	-	4.6	28.6	28.5	1.7
1d	4.4	20.0	12.5	7.0	10.7	14.3	42.9	1.7
Total number sampled	46	10	48	71	131	14	7	472

b) Data weighted by total number of each stratum

Strata	5.1.a	5.1.b	4.1.a	4.1.b	5.1.a	5.1.c	5.1.d	6.a	Total number
Maturity Stages
1	65.6	67.4	183.3	433.9	699.0	8.4	11.4	599.5	2062.4
2	27.4	22.5	63.6	54.4	92.8			392.7	653.3
5	65.6		21.0		92.8	33.8	11.4	1104.7	1329.2
4	54.3		7.1	23.1	50.8	25.3		431.9	592.6
5	27.4		21.0		50.8	33.8	22.6	44.5	200.1
1 d	11.1	22.5	42.3	38.5	118.1	16.9	34.1	44.5	327.9
S × 103	251.5	112.3	338.3	549.9	1104.2	118.3	79.4	2617.7	5171.6

Total number in the bottom line and in the last column do not coincide with the sums of the values for the original values were divided by 10³ in order to allow a better reading of the table.

Table 9. - P. indicus - Estimates of stock size (in number) splitted by length groups and by stratum

a) Length frequency distribution by stratum

b) Data weighted by total number of each stratum

Total number in the bottom line and in the last column do not coincide with sums of the values for the original values were divided by 10³ in order to allow a better reading of the table.

Table 10. - Worksheet for the computation of M. monoceros biomass (in weight)

a) Basic data

b) Results

	Stratum Estimates
	2	3				4				5				6		Total
		3.1.a	3.1.b	3.2.a	3.2.b	4.1.a	4.1.b	4.2.a	4.2.b	5.1.a	5.1.b	5.1.c	5.1.d	6.a	6.b
(Kg)	0.77	0.987	0.235	0.010	0.325	1.407	3.883	0.32	0	2.680	0	0.065	0.045	0.240	0	0.764
Ah (Km2)	1454	1753	1049	1063	458	1612	1070	2576	1091	1180	1173	789	1060	518	1324	18170
(ton)	24.0	37.1	5.3	0.2	3.2	48.6	89.0	17.7	0	67.7	0	1.1	1.0	2.7	0	297.4

Table 11. - Worksheet for the computation of M. monoceros stock size +

a) Basic data

b) Results

	Stratum estimates
	2	3				4				5				6		Total
		3.1.a	3.1.b	3.2.a	3.2.b	4.1.a	4.1.b	4.2.a	4.2.b	5.1.a	5.1.b	5.1.c	5.1.d	6.a	6.b
(n°)	99.5	84.7	14	0	16	120.8	422	0	0	116.3	0	3.5	3	12.5	0	61.2
Ah (Km2)	1454	1753	1049	1063	458	1612	1070	2576	1090	1180	1173	789	1060	518	1324	18170
S × 103 (n°)	3097.9	3179.4	314.5	0	156.9	4169.8	9669.0	0	0	2939.4	0	59.1	68.1	138.7	0	23792.7

Table 12 - Worksheet for the computation of M. monoceros stock size

a) Basic data

b) Results

	Stratum estimates
	2	3				4				5				6		Total
		3.1.a	3.1.b	3.2.a	3.2.b	4.1.a	4.1.b	4.2.a	4.2.b	5.1.a	5.1.b	5.1.c	5.1.d	6.a	6.b
(n°)	48.8	46.9	10.0	0	9.5	76.0	224.5	0	0	53.3	0	1.0	0.5	4.5	0	32.56
Ah(Km2)	1454	1753	1049	1063	458	1612	1070	2576	1091	1180	1173	789	1060	518	1324	18170
S × 103	1519.3	1760.5	224.6	0	93.2	2623.4	5139.2	0	0	1346.8	0	16.9	11.3	49.9	0	12785.2

Table 13 - M. monoceros - Estimates of stock size (in number) splitted by length groups and by stratum

a) Length frequency distribution by stratum

b) Data weighted by total number of each stratum

Total number in the bottom line and in the last column do not coincide with the sums of the values for the original values were divided by 10³ in order to allow a better reading of the table.

Table 14. M. monoceros - Estimates of stock size (in number) splitted by maturity stages and by stratum

a) Percentages of maturity stages by stratum (calculated by weighting each sample by the total number of each station and combining the results by stratum

b) Data weighted by total number of each stratum

Total number in the bottom line and in the last column do not coincide with the sums of the values for the original values were divided by 10³ in order to allow a better reading of the table.

Table 15. - M. monoceros - Estimates of stock size (in number) splitted by length groups and by stratum

a) Length frequency distribution by stratum

b) Data weighted, by total number of each stratum

Total number in the bottom line and in the last column do not coincide with the sums of the values for the original values were divided by 10³ in order to allow a better reading of the table.

From GEOLOGICAL-GEOPHYSICAL ATLAS OF THE INDIAN OCEAN, Moscow 1975.

A.S. JOHN GRIEG