Annex 2. Tables

Tables 1 to 9
Tables 10a to 10h
Tables 11 to 13
Table 14

Tables 1 to 9

TABLE 1. Main operational features of the cruises.

Cruise no.	Dates	Days at sea	Distance* travelled in survey area	Numbers** fishing stations	Hydrographic stations	Plankton samples
1 & 2	14/2-75 - 14/4-75 19/4-75 - 3/7-75	52 + 57	6970	104 (129)	219	106
3	16/8-75 - 24/11-75	84	7055	99 (127)	221	119
4	11/1-76 - 1/4-76	71	6140	77 (109)	132	-
5	6/4-76 - 25/6-76	66	5675	75 (92)	113	-
6	20/8-76 - 24/11-76	78	7700	96 (113)	254	-
Total		408	33540	451 (570)	939

* within the shelf area only.
** Within survey area of relevance to this report. Within total survey area in brackets.

Sector		Geographic limits	Coast-line length	Continental Shelf area
No	Name
1	South Somalia	1°-12°N	853	9340
3	Socotra	12°-14°N 52°-55°E	151	4400
2	North Somalia	44°-51°E	551	2330
4	South Yemen	43°30'-53°E	668	7620
5	South Oman	53°E-23°30°N	616	11320
6	North Oman	North to St. Hormuz	363	4280
7	Iran	St. Hormuz-62°E	330	4360
	Total		3530	43720

Table 3. Number of Acoustic Recordings, during each Cruise in each Sector.

TABLE 4a. Frequency with which each species, or other taxonomic group, appeared in the catches taken in the course of all cruises in each sector.

TABLE 4b. As for Table 4a, but relating to only the more important species and groups.

TABLE 4c. As for Table 4b, but relating to families only.

Table 5a. Frequency with which each species, or other taxonomic group, appeared in the catches taken in one or more sectors during each cruise.

Number* of sectors	Cr. 1, 2	Cr. 3	Cr. 4	Cr. 5	Cr. 6	Cr. 1-6	Percent
1	124	114	109	85	138	570	49
2	57	60	43	48	72	280	24
3	24	30	36	22	41	153	13
4	9	16	22	7	23	77	7
5	4	14	9	3	12	42	4
6	4	2	4	3	8	21	2
7	2	2	4	3	7	18	2
8				4		4
9	2		1			3
10		1	1		4	6
	1.867	2.067	2.214	2.063	2.275	2.11
SD	1.379	1.419	1.596	1.569	1.735	1.56
n	226	239	229	175	305	1174

* Number of cub-areas in which each species appeared in catches.

Number of Sectors	Cr. 1 & 2	Cr. 3	Cr. 4	Cr. 5	Cr. 6	Total
1	81	68	73	62	79	363
2	34	44	24	35	49	186
3	19	23	28	17	31	118
4	3	9	12	6	15	45
5	4	10	9	1	10	34
6	2	1	4	3	5	15
7	1			1	4	6
8				2		2
9
10
	1.785	2.045	2.147	1.992	2.269	2.064
SD	1.178	1.229	1.397	1.428	1.49	1.363
n	144	155	150	127	193	769

TABLE 5c. As for Table 5b, but limited to families.

Number of sectors	Cr. 1 & 2	Cr. 3	Cr. 4	Cr. 5	Cr. 6	Total
1	12	7	2	7	5	33
2	6	9	9	3	11	38
3	6	5	7	4	4	26
4	2	6	3	5	4	20
5	7	3	6	2	2	20
6	2	3	3	4	4	21
7	2	4	2	3	7	18
3	1	4	2	5	4	16
9	2	2		1	4	10
10	1	0	1	0	2	4
	41	43	41	34	47	206

TABLE 6a. Frequency with which the commercially important species or other taxonomic group appeared in one or more sectors and in one or more cruises that is combining Tables 4b and 5b.

Number of sub-areas	Number of cruises
	Cr. 1	Cr. 2	Cr. 3	Cr. 4	Cr. 5	Total
1 sub-area	103	3	1	0	0	107
2 sub-area	33	35	4	0	0	72
3 sub-area	7	23	19	3	1	53
4 sub-area	3	11	15	8	0	27
5 sub-area	2	3	5	7	9	26
6 sub-area	1	4	4	7	3	19
7 sub-area	0	1	3	3	10	17
8 sub-area	0	0	0	6	5	11
9 sub-area	0	0	1	3	2	6
10 sub-area	0	0	0	0	2	2
	149	80	52	27	32	340

TABLE 6b. As for Table 6a, but limited to families.

Number of sub-areas	Number of cruises
	Cr. 1	Cr. 2	Cr. 3	Cr. 4	Cr. 5	Total
1 sub-area	3	0	0	0	0	3
2 sub-area	3	1	1	0	0	5
3 sub-area	0	l	1	0	1	3
4 sub-area	0	2	2	1	2	7
5 sub-area	0	1	0	1	2	4
6 sub-area	0	0	0	0	2	2
7 sub-area	0	2	1	3	3	9
8 sub-area	0	0	0	0	3	3
9 sub-area	0	0	0	1	5	6
10 sub-area	0	0	0	0	12	12
	6	7	5	6	30	54

Table 7a. The appearance of families in pelagic and demersal catches showing for each family the number of stations in which it appeared, the percentage that that number is of the total number of hauls of the type to which the number relates, and the rate of catch kg/hour) at stations of its occurrence.

FAMILY	PELAGIC			DEMERSAL
	fn	%	C Kg/h	fn	%	C Kg/h
Acropomidae				11	5	54.0
Ariidae	10	3	310.3	36	17	711.5
Ariommidae	7	2	28.8	10	4	24.0
Balistidae	2	0	17.2	21	10	12.7
Bothidae	2	0	0.1	25	12	1.5
Bramidae	9	3	2.9
Carangidae	91	32	105.7	120	57	198.3
Centropomidae	2	0	0	7	3	246.6
Chironemidae	6	2	3.1	11	5	16.8
Clupeidae	53	19	387.5	55	26	79.5
Congridae	4	1	17.1	4	1	3.7
Coryphaenidae				1	0	40.0
Cynoglossidae				2	0	1.0
Drepanidae	1	0	0	20	9	18.8
Engraulidae	40	14	172.4	39	18	139.9
Formionidae	1	0	96	16	7	45.4
Gempylidae	30	10	1.3	6	2	17.9
Garridae				18	8	8.2
Harpadontidae	15	5	4.5	2	0	42.9
Lactaridae	3	1	0.5	13	6	147.1
Leiognathidae	17	6	43.1	52	25	179.8
Lethrinidae	2	0	57.9	41	19	235.2
Menidae	1	0	1.6	2	0	0.8
Mullidae	1	0	4.8	57	27	24.2
Muraenesocidae	1	0	1.4	10	4	49.5
Nemipteridae	18	6	171.5	85	41	396.1
Parapercidae	4	1	0.3	2	0	18.0
Pentapodidae				12	5	19.8
Peristedidae	1	0	1.0	9	4	68.8
Pleuronectidae				24	11	55.4
Platycephalidae	29	10	49.6	37	17	10.1
Plectorynchidae				2	0	54.0
Polynemidae				13	6	17.1
Pomatomidae	5	1	-	38	18	137.6
Priacanthidae	4	1	0.4	23	11	5.7
Psettodidae				13	6	7.9
Rachycentridae	2	0	6.5	17	8	18.4
Sciaenidae	3	1	0.3	34	10	213.9
Scolopsidae				4	1	5.9
Scombridae	41	14	30.2	42	20	58.8
Scorpaenidae	3	1	0.2	20	9	2.1
Scombropidae	1	0	0	4	1	17.3
Serranidae	1	0	1.4	49	23	45.6
Siganidae				9	4	24.7
Sillaginidae	1	0	6.8	2	0	16.8
Soleidae				1	0	0.8
Sparidae	11	3	16.2	82	39	102.1
Sphyraenidae	20	7	78.0	52	25	42.9
Stromateidae	74	26	31.7	37	17	215.2
Synodontidae	10	3	206.4	96	46	50.7
Theraponidae				12	5	209.9
Trichiuridae	44	15	25.1	48	23	164.2

Table 7b. Citations in the texts of Cruise Reports of the sighting and catching of various species.

	Cruise number
Species name	1+2	3	4	5	6
Alectis indicus					+
Alepes djeddaba			+	+	+
Alepes melanoptera		+
Alepes sp.		+
Auxis rochei		+
Auxis thazard	+	+			+
Bregmaceros macclelandi					+
CARANGIDAE		+
Carangoides chrysophrys					+
Carangoides malabaricus	+				+
Carangoides oblongus					+
Carangoides sp.					+
Coryphaena hippurus		+
Decapterus dayi	+		+
Decapterus macrosoma		+
Decapterus maruadsi		+			+
Decapterus sp.		+	+	+	+
Diodon maculifier	+	+	+	+
Drepane punctata					+
Dussumiera acuta	+	+	+	+	+
Engraulis japonicus		+
Engraulis sp.					+
Etrumeus teres	+	+	+	+	+
Euthynnus affinis	+
Formio niger					+
Gazza minuta					+
Herclotsichthys sp.		+
Hilsa sp.		+
Leiognathus bindus	+				+
Leiognathus elongatus					+
Leiognathus equulus					+
Leiognathus sp.				+	+
Megalaspis cordyla		+		+	+
Nemipterus sp.		+
Pampus argenteus					+
Pellona ditchela					+
Rastrelliger kanagurta					+
Sardinella albella	+		+		+
Sardinella gibbosa	+			+	+
Sardinella jussieu	+
Sardinella longiceps	+	+	+	+	+
Sardinella sirm					+
Sardinella sp.		+	+
Scomber sp.	+	+		+	+
Scomberomorus commersoni	+	+
Scomberomorus guttatus		+			+
Scomberomorus sp.			+
Selar crumenphthalmus	+		+		+
Stolephorus buccaneri	+		+
Stolephorus commersoni	+
Stolephorus heterolobus		+			+
Stolephorus sp.				+
Synargrops sp.			+	+
Thryssa mystax					+
Thryssa sp.				+
Thryssa vitrirostris	+	+	+
Trachurus sp.	+	+	+	+

Table 8. Frequency distribution of number of species per shot, for demersal gears and pelagic gears separately and for all gears.

	Frequency in shots
Number of species per shot	with demersal gears	with pelagic gears	with all gears
0	4	1	5
1	18	36	54
2	12	32	44
3	14	41	55
4	11	28	39
5	18	13	31
6	10	20	30
7	8	14	22
8	6	10	16
9	15	7	22
10	12	7	19
11	8	3	11
12	10	3	13
13	8	2	10
14	8	2	10
15	7	3	10
16	4	0	4
17	3	0	3
18	5	1	6
19	7		7
20	3		3
21	1		1
22	0		0
23	3		3
24	2		2
25	2		2
26	4		4
27	0		0
28	2		2
29	2		2
30	0		0
31	1		1
32	0		0
33	3		3
34	0		0
35	2		2
Totals:	213	223	436
Without transformation
	Mean = 10.08	4.56	7.24
	S.D. = 7.81	3.35	6.53
With transformation
	Mean = 7.41	3.70	5.25
	S.D. = 0.3528	0.2514	0.3303

Table 9: Estimates of biomass in each sector during each cruise. A lower and an upper estimate is given in each case, derived from the confidence limits of the mean biomass-density index.