APPENDIX 1 RESULTS OF THE LANDING SURVEYS AT NAVOTAS,
DAMORTIS AND MERCEDES

RAISING FACTORS AT NAVOTAS BASED ON THE RESULTS OF FISH LANDING SURVEY
AND CATCHES ACCORDING TO FISH CAUGHT REPORTS

(Unit Metric Tons)

Month	1966		1967		1968
Month	Estimated Landings	Reported Catches	Estimated Landings	Reported Catches	Estimated Landings	Reported Catches
January			3,770	2,370	4,702
February			5,914	2,378	4,218
March			5,342	5,246	5,035
April			6,172	4,731	4,908
May			7,536	4,987	5,795
June			6,605	4,853	6,579
July	8,102	5,879	5,999	4,753	4,274
August	8,231	4,097	4,601	3,719	4,927
September	4,301	2,935	5,804	4,219	4,795
October	5,729	4,385	5,597	2,509	4,879
November	4,660	3,678	4,772	3,477	3,726
December	4,566	2,148	2,240	4,658	4,155
Total	35,589	23,123	64,352	47,990	57,993
Raising Factor¹	1,5392		1,3435

¹ Total Estimated Landings
Total Reported Catches

RESULTS OF FISH LANDING SURVEY AT NAVOTAS
(Estimated Monthly Landings)

Year: 1966

Month	No. of sample days	Estimation factor	Amphibians Loaded with Tubs				Amphibians Loaded with Trays¹				Total Landings (M. Tons)
Month	No. of sample days	Estimation factor	No of trips on sample days	Tubs per trip (av)	Fish per tub (kg)	Fish landed (M. Tons) le day	No of trips on sample days	Tubs per trip () (av)	Fish per tub (kg)	Fish landed (M.Tons)	Total Landings (M. Tons)
Jan.
Feb.
March
April
May
June
July	9	31/9	752	84.1	35	7,624	91	254	6	478	8,102
Aug.	16	31/16	1,366	83.8	35	7,763	146	276	6	468	8,231
Sept.	15	30/15	669	81.8	35	3,821	147	272	6	480	4,301
Oct.	15	31/15	865	83.2	35	5,206	161	262	6	523	5,729
Nov.	15	30/15	141	82.4	35	4,274	129	249	6	386	4,660
Dec.	15	31/15	673	82.7	35	4,026	165	264	6	540	4,566
Total	85		5,066			52,714	839			2,875	35,589

¹ Caught by Manila Bay Trawlers

RESULTS OF FISH LANDING SURVEY AT NAVOTAS

(Estimated Monthly Landings)

Year: 1967

Month	No of Sample days	Estimation factor	Amphibians Loaded with Tubs				Amphibians Loaded with Trays¹				Total Landings (M.Tons)
Month	No of Sample days	Estimation factor	No. of trips on sample days	Tubs per trip (av)	Fish per tub (kg)	Fish landed (M.Tons)	No. of trips on sample days	Tubs per trip (av)	Fish per tub (kg)	Fish landed (M.Tons)	Total Landings (M.Tons)
Jan	5	31/5	165	85.0	35	3,044	85	229.7	6	726	3,770
Feb.	3	28/3	201	78/6	35	5,151	52	258.6	6	755	5,914
March	16	31/16	833	84.4	35	4.767	190	260.2	6	575	5,342
April	15	30/15	1,044	77.6	35	5,671	150	278.4	6	501	6,172
May	15	31/15	1,307	75.7	35	7,157	108	283.1	6	379	7,536
June	15	30/15	1,259	71.4	35	6,293	121	214.9	6	312	6,605
July	16	31/16	1,183	70.9	35	5,688	129	207.3	6	311	5,999
Aug.	16	31/16	847	74.2	35	4,262	137	213.2	6	339	4,601
Sept.	15	30/15	978	79.2	35	5,423	164	193.7	6	381	5,804
Oct.	14	31/14	859	79.6	35	5,299	102	220.1	6	298	5,597
Nov.	15	30/15	784	80.8	35	4,434	95	296.1	6	338	4,772
Dec.	15	31/15	388	72.2	35	2,026	77	224.3	6	214	2,240
Total	160		9,848			59,225	1,410			5,127	64,352

¹ Caught by Manila Bay Trawlers.

RESULTS OF FISH LANDING SURVEY IN NAVOTAS
(Estimated Monthly Landings)

Year: 1968

Month	No. of sample days	Estimation factor	Amphibian Loaded with Tubs				Amphibians Loaded with Trays¹				Total Landings (M.Tons)
Month	No. of sample days	Estimation factor	No.of trips on sample days	Tubs per trip (av)	Fish land (M.Ton) (kg)	Fish landed (M.Tons)	No. of trips on sample days	Tubs per trip (av)	Fish per tub (kg)	Fish landed (M.Tons)	Total Landings (M.Tons)
Jan	15	31/15	770	80.7	35	4.495	74	226.0	6	207	4,702
Feb	15	29/15	754	77.3	35	3,944	84	281.7	6	274	4,218
March	15	31/15	902	72.1	35	4,704	99	269.8	6	331	5,035
April	15	30/15	792	81.6	35	4,524	116	278.1	6	384	4,908
May	16	31/16	1,071	75.9	35	5,512	117	208.4	6	283	5,795
June	15	30/15	1,104	80.5	35	6,221	114	261.7	6	358	6,579
July	15	31/15	640	86.2	35	3,990	79	490.5	6	284	4,274
Aug.	16	31/16	812	84.3	35	4,642	82	298.9	6	285	4,927
Sept.	15	30/15	761	85.3	35	4,544	71	294.1	6	251	4,795
Oct.	15	31/15	742	85.6	35	4,594	80	287.8	6	285	4,879
Nov.	15	30/15	614	82.3	35	3,537	60	263.0	6	189	3,726
Dec.	16	31/16	725	80.3	35	3,948	70	254.2	6	207	4,155
Total	188	-	9,687			84,655	1,046			3,338	57,993

¹ Caught by Manila Bay Trawlers

COMPARISON OF RESULTS OF THE FISH COMPOSITION
SURVEY AT NAVOTAS (1968)

WITH THE
FISH CAUGHT REPORT DATA (1967)

1. Landings by Type of Fishing Gear

Fishing Gear	Hook & Line	Muroami	Bagnet & Purse Seine	Otter Trawl	Total 100.0%
Source of Data
Composition Survey 1968	9.0%	5.2%	60.8%	25.0%	100.0%
Fish Caught Report 1967	0.9%	0.4%	59.8%	38.9%	100.0%

Note: Bagnet and Purse Seine in the Composition Survey include bagnet, purse seine, round haul seine and beach seine.

2. Landings by Fishing Ground

Fishing Ground	Visayas Seas	Palawan Waters	Mindanao Sea	Manila Bay	Total
Source of Data
Composition Survey 1968	33.3%	54.2%	2.2%	10.3%	100.0%
Fish Caught Reports 1967	41.2%	43.4%	6.7%	8.7%	100.0%

3. Landings by Major Kinds of Fish

Kind of Fish	Round Scad	Sardine	Nemia Terril	Mackere Caub	Caesio	Lizard Slip MouTD	Lizard Fish	Big eyed scad	Shrimps	Grouper	Cavalla	Heir Tail	Bonito	OTDers
Source of Data
Composition Survey 1968	43.0%	6.8%	6.5%	5.8%	4.7%	4.5%	3.6%	3.3%	2.9%	2.8%	2.6%	2.6%	2.5%	8.4%
Fish Caught Reports 1967	43.5%	8.3%	7.4%	5.8%	0.9%	8.9%	4.3%	2.8%	2.9%	0.5%	0.9%	1.2%	2.3%	9.8%

NAVOTAS FISH LANDING SURVEY
Species Landed by Gear

(January-December 1968)

(UNIT; number of sample tubs)

GEAR	HOOK & LINE	MUROAMI	BAGNET	OTTER TRAWL	TOTAL NO. OF TUBS	PERCENTAGE
SPECIES
1. Anchovy				176	176	.35
2. Barracuda		95		574	669	1.32
3. Big Eyodscad			1,660		1,660	3.27
4. Bonito			1,302		1,302	2.56
5. Caecio		2,408			2,408	4,74
6. Cavalla	1,255	80			1,385	2.63
7. Crab				821	821	1.62
8. Croaker				13	13	.03
9. Grouper	1,427			28	1,455	2.86
10. Hairtail				1,325	1,325	2.61
11. Lizardfish				1,817	1,817	3.58
12. MackerelChub			27,218	716	2,934	5.78
13. Mackerel Sp.	260		488		748	1.47
14. Moonfish				85	85	.17
15. Moray				57	57	.11
16. Nemipterid	684			2,818	3,302	6.50
17. Roundscad			21,802	40	21,842	43.01
18. Runner	40				40	.08
19. Sardine			3,395	40	3,435	6.76
20. Shrimp				1,458	1,458	2.87
21. Siganid				32	32	.06
22. Slipmouth				2,285	2,285	4.50
23. Snapper	446			15	461	.91
24. Squid				409	409	.91
25. Surgeenfish	191	76			267	.53
26. Tuna	155				155	.30
27. Others	112			179	291	.57
TOTAL	4,570	2,659	30,865	12,688	50,782
% BY GEAR	9,00%	5.24%	60.78%	24.98%		100%

NAVOTAS FISH LANDING SURVEY
SPECIES LANDED BY AREA OF CAPTURE

(January - December 1968)

Unit number of sample tubs)

AREA	PALAWAN	VISAYAN	MINDANAO	MANILA BAY	TOTAL NO. OF TUBS	PERCENTAGE
SPECIES
1. Anchovy		10		166	176	.35
2. Barracuda	354	33		282	669	1.32
3. Big-Eyedscad	1,116	510	34		1,660	3.27
4. Bonito	765	537			1,302	2.56
5. Caesio	1,307	867	234		2,408	4.74
6. Cavalla	771	457	107		1,335	2.63
7. Crab	172	113		530	821	1.62
8. Croaker		8		5	13	.03
9. Grouper	902	464	89		1,455	2.86
10. Hairtail	486	353		486	1,325	2.61
11. Lizardfish	551	522		744	1,817	3.58
12. Mackerel, Chub	1,669	1,015	15	235	2,934	5.78
13. Mackerel Sp.	378	311	59		748	1.47
14. Moonfish	30			65	85	.08
15. Moray		8		49	57	.11
16. Nemipterid	1,211	1,314		777	3,302	6.50
17. Roundscad	13,676	7,716	410	40	21,842	43.01
18. Runner	40				40	.08
19. Sardine	2,251	1,100	44	50	3,435	6.76
20. Shrimp	437	192		829	1,458	2.87
21. Siganid		8		24	32	.06
22. Slipmouth	529	962		794	2,285	4.50
23. Snapper	195	192	74		461	.91
24. Squid	208	75		126	409	.81
25. Surgeonfish	190	77			267	.53
26. Tuna	80	53	22		155	.30
27. Others	205	35	37	14	391	.57
T O T A L	27,513	16,932	1,123	5,212	50,782
AREA OF % BY CAPTURE	54.18%	33.34%	2.22%	10.26%		100%

RESULTS OF FISH LANDING SURVEY AT DAMORTIS

Year: 1967

Month	No. of Sample Days	Estimation Factor	No. of trays landed on sample days	Fish per tray (kg)	Fish landed		No. of trawler lers perday
Month	No. of Sample Days	Estimation Factor	No. of trays landed on sample days	Fish per tray (kg)	Estimated¹ (kg)	Reported² (kg)	No. of trawler lers perday
July	16	31/16	15,171	5	146,969	36,450	3.3
Aug.	-	-	-	-	-	-	-
Sept.	15	30/15	11,752	5	117,520	40,600	2.4
Oct.	12	31/12	4,802	5	62,017	13,800	1.4
Nov.	9	30/9	4,446	5	74,092	11,790	1.3
Dec.	10	31/10	6,696	5	103,788	32,180	2.2
TOTAL	62		42,867		504,386	34,320	2.2
				Raising Factor — 3.755

Note: The survey was discontinued in August.

Year 1968

Month	No. of Sample Days	Estimation Factor	No. of trays landed on sample days	Fish per tray (kg)	Fish landed		No. of trawler lers perday
Month	No. of Sample Days	Estimation Factor	No. of trays landed on sample days	Fish per tray (kg)	Estimated¹ (kg)	Reported² (kg)	No. of trawler lers perday
January	11	31/11	4,818	5	118,547		1.8
February	9	29/9	4,904	5	79,008		1.2
March	9	31/9	4,686	5	80,702		1.8
October	16	31/16	8,356	5	81,143		1.8
November	15	30/15	5,457	5	54,570		1.5
December	16	31/16	5,315	5	51,489		1.4
TOTAL	76		37,151		465,459		1.5

Note: The survey was discontinued from April to September.

¹ Estimated from survey data

² Derived from Fish Caught Reports

ESTIMATED LANDINGS BY KINDS OF FISH
FISH LANDINGS SURVEY DAMORTIS

Year: 1967

(All Trawlers)					(Unit: Kgs.)
Month	July	September	October	November	December	Total	Percentage
Species
SLIPMOUth	60,110	43,835	19,969	27,340	34,250	185,364	30.7
NEEMIPTE RID	18,371	14,255	6,326	8,891	11,001	58,844	11.7
LIZARD-FISH	16,314	14,573	9,613	12,818	20,654	73,972	14.7
HAIRTAIL	3,380	3,208	4,651	4,075	6,227	21,541	4.3
GROAKER	6,908	8,309	6,202	6,668	9,756	37,813	7.5
GHUB MACKEREL	12,345	12,304	5,705	8,372	13,700	52,426	10.4
SP. MACKEREL	8,230	9,554	-	-	-	17,784	3.5
BIG EYED SCAD	14,109	7,369				21,478	4.2
SQUID			5,954	3,705	5,686	14,745	2.9
MISCELLA NEOUS	7,202	4,313	3,597	2,223	3,114	20,449	4.1
T O T A L	146,969	117,520	02,017	74,092	103,788	504,368	100.0

RESULTS OF FISH LANDING SURVEY AT MERCEDES

Year: 1967

Month	No. of Sample Days	Estimation factor	No. of tubs landed on sample days	Fish per tub (kg)	Fish Landed		Average No. of Vessels per day
Month	No. of Sample Days	Estimation factor	No. of tubs landed on sample days	Fish per tub (kg)	Estimated (kg)¹	Reported² (kg)	Average No. of Vessels per day
July	7	31/7	9,356	27	1,118,710	189,440	48
August	15	31/15	15,745		878,571	127,230	51
September	15	30/15	13,159		710,386	81,480	42
October	5	10/5	4,039		218,106	2,200	37
Total	42		42,299		2,925,973	400,350	40
Raising Factor 7.309

Note: 1. Fish Landing Survey at Mercedes to be conducted during the fishing season which runs from April to October. In 1967 the season ended on 10 October.

2. The survey was not conducted in 1968 due to shortage of personnel

¹ Estimated from survey data

² Derived from Fish Caught Reports

FISH LANDING SURVEY AT MERCEDES

ESTIMATED LANDINGS BY KIND OF FISH

(Mostly Bagnetters)		1967		(Unit; Kg.)
Month	July	August	September	October	Total	Percent
Kinds of Fish
Anchovy	169,260	343,521	187,239	88,224	788,244	20.9
Barracuda	13,430	8,961	995	-	23,386	0.8
Big-eyed Sead	25,840	50,254	24,800	-	100,894	3.4
Bonito	79,430	68,616	7,248	14,591	169,885	5.8
Caesio	38,150	5,359	2,416	-	45,925	1.0
Cavalla	-	10,279	994	-	11,273	0.4
Croaker	3,130	9,840	-	1,003	13,973	0.5
Flying Fish	-	439	-	-	439	0.0
Gizzard Fish	1,010	-	-	-	1,010	0.0
Grant	8,280	879	-	-	9,159	0.3
Hairtail	-	439	-	-	439	0.0
Hardtail	40,270	4,920	5,827	502	51,519	1.8
Mackerel Chub	129,990	49,376	21,886	2,000	203,258	7.0
Milkfish	-	1,758	497	-	2,255	0.1
Pomfret	2,010	1,406	1,919	-	5,335	0.2
Round Sead	270,390	158,319	338,026	76,054	842,789	28.8
Sardine	22,710	84,782	82,712	29,706	219,910	7.5
Slipmouth	65,000	55,614	35,032	2,007	157,653	5.4
Snapper	-	-	-	2,508	2,508	0.1
Squid	246,680	3,163	-	-	249,843	8.5
Tuna	3,130	20,207	995	1,505	25,837	0.9
Ray	-	439	-	-	439	0.0
Total	1,118,710	878,571	710,586	218,106	2,925,973	100.0

APPENDIX 1

RESULTS OF THE LANDING SURVEYS AT NAVOTAS, DAMORTIS AND MERCEDES

RESULTS OF THE LANDING SURVEYS AT NAVOTAS,
DAMORTIS AND MERCEDES