| Year | Number of fishing boats | Number of fishermen 2 | Catch in tons | |||||||
| Total | Powered boats | Nonpowered boats | ||||||||
| Inboard | Outboard | Large | Medium | Small | Total3 | Quantity reported | Addition 4 | |||
| 1968 | 8 047 | 42 | 108 | 1 284 | 3 579 | 3 084 | 90 976 | 58 457 | 44 967 | 13 490 |
| 1969 | 8 255 | 47 | 197 | 1 082 | 3 296 | 3 603 | 86 582 | 64 981 | 49 952 | 15 028 |
| 1970 | 8 580 | 61 | 211 | 1 082 | 3 514 | 3 712 | 75 641 | 66 450 | 47 465 | 18 984 |
| 1971 | 8 264 | 145 1 | 140 | 1 041 | 3 249 | 3 689 | 56 921 | 53 629 | - | - |
| 1972 | 8 697 | 79 | 409 1 | 955 | 3 142 | 4 112 | 44 445 | 49 162 | - | - |
| Data Source: Fisheries Administrative Report of West Java, 1972 | ||||||||||
General findings
1 Such a sharp increase may not be possible
2 Such a sharp decrease in the number of fishermen may not be possible if an increasing trend in the total number of fishing boats is true
3 Such a general decreasing trend of annual catch may not be possible if an increasing trend in the number of fishing boats is true
4 Such an arbitrary, addition on catch was made by the PFS until 1970. It is not known what was done after 1972.
| Province | N (1 000) | Q (103 t) | V (Rp.106) | Q/N (t) | V/N (Rp.103) | V/Q (Rp./kg) | |
| 1972 | Total | 45.3 | 141.1 | 15 129 | 3.1 | 334 | 107 |
| Jakarta | 2.0 | 6.3 | 387 | 3.2 | 193 | 61 | |
| West Java | 8.7 | 51.6 | 5 880 | 5.9 | 675 | 114 | |
| Central Java | 10.3 | 33.3 | 5 952 | 3.2 | 577 | 178 | |
| East Java | 24.3 | 49.9 | 2 909 | 2.1 | 119 | 58 | |
| 1973 | Total | 52.3 | 156.5 | 9 336 | 3.0 | 178 | 59 |
| Jakarta | 2.0 | 6.1 | 363 | 3.1 | 181 | 59 | |
| West Java | 10.4 | 51.4 | 2 928 | 5.0 | 281 | 57 | |
| Central Java | 13.5 | 36.6 | 2 998 | 2.7 | 222 | 81 | |
| East Java | 26.4 | 62.3 | 3 022 | 2.4 | 114 | 48 | |
| 1974 | Total | 52.5 | 157.2 | 13 492 | 3.0 | 257 | 85 |
| Jakarta | 2.0 | 6.9 | 484 | 3.5 | 242 | 70 | |
| West Java | 10.6 | 55.0 | 4 657 | 5.2 | 439 | 84 | |
| Central Java | 12.6 | 44.8 | 4 367 | 3.6 | 346 | 97 | |
| East Java | 27.3 | 50.4 | 3 950 | 1.8 | 144 | 78 | |
Note: N: Total number of fishing boats
Q: Total catch in quantity
V: Total catch in value
General findings
Judging from 1973 fishery census data, the total number of fishing boats (N) by provinces are in a good balance, although these figures are likely to have been underestimated.
Total catch in quantity (Q) of East Java is heavily underestimated. In spite of the fact that, throughout three years, the number of fishing boats in East Java is slightly more than one half of that of Java as a whole, its total catch is only about one-third of the total catch of Java.
Corresponding to the underestimation of total catch (Q) in East Java, its catch in value (V) is also underestimated.
Throughout three years the average catch per boat (Q/N) for West Java is always highest among the four provinces. This may be due to the arbitrary addition of catch which was made by the PFS.
Catch in value (V) of 1972 for both West Java and Central Java seems to have been overestimated. This seems to be due to the application of unreasonably high price of catch (V/Q), which was used for the estimation of catch in value.
The above fact also affects the average catch in value per fishing boat for 1972 for these two provinces.
| Year | Data source | Total number of fishing boats (103) | Marine catch | |
| Quantity (103 t) | Value (Rp.109) | |||
| 1972 | PFS Fisheries Administrative Report | 45.3 | 141.1 | 15.1 |
| 1973 | PFS Fisheries Administrative Report | 52.3 | 156.5 | 9.3 |
| 1974 | PFS Fisheries Administrative Report | 52.5 | 161.0 | 13.5 |
| 1975 | 1973 Fishery Census | 103.4 | 313.6 | 23.5 |
General findings
The total number of fishing boats derived from the 1973 fishery census is generally true. Therefore, the number of fishing boats which were reported by the PFS is extremely underestimated.
Corresponding to the underestimation of the number of fishing boats as referred to above, catch in both quantity and value reported by the PFS is also heavily underestimated.
