Station | Depth(m) | Temp. (°C) | Salinity (‰) | pH | O2 Concentration (ppm) | % of Saturation |
1 | 4.5 | S 30.2 | 32.0 | 7.92 | 7.2 | 93.5 |
B 30.0 | 31.5 | 8.05 | 6.4 | 83.1 | ||
2 | 8.5 | S 30.2 | 32.0 | 7.95 | 7.2 | 93.5 |
B 30.0 | 32.0 | 8.15 | 6.2 | 80.5 | ||
3 | 1.5 | 30.5 | 32.0 | 8.20 | 7.8 | 102.6 |
4 | 0.3 | 31.2 | 31.0 | 8.30 | 10.3 | 137.3 |
5 | 12.0 | S 31.0 | 31.0 | 8.15 | 6.6 | 88.0 |
B 30.0 | 31.0 | 8.20 | 7.5 | 97.4 |
Station | Depth(m) | Temp. (°C) | Salinity (‰) | pH | O2 Concentration (ppm) | % of Saturation |
1 | 6.0 | S 29.8 | 31.0 | 7.70 | 7.3 | 94.8 |
B 30.0 | 31.5 | 7.85 | 7.2 | 93.5 | ||
2 | 10.5 | S 30.0 | 31.0 | 8.05 | 7.2 | 92.9 |
B 30.0 | 31.5 | 8.10 | 7.1 | 92.2 | ||
3 | 3.5 | 30.0 | 31.0 | 8.20 | 7.2 | 92.9 |
4 | 2.2 | 29.9 | 31.0 | 8.00 | 7.0 | 90.9 |
5 | 14.8 | S 29.9 | 31.5 | 8.10 | 7.1 | 92.2 |
B 29.9 | 31.5 | 8.20 | 6.9 | 89.6 |
Month | Rainfall (mm) | Mean Temp (°C) |
January | 30.8 | 23.8 |
February | 11.2 | 24.7 |
March | 19.2 | 26.2 |
April | 38.1 | 26.8 |
May | 354.7 | 26.6 |
June | 92.2 | 26.3 |
July | 129.7 | 26.3 |
August | 133.7 | 26.3 |
September | 159.6 | 26.1 |
October | 219.2 | 26.3 |
November | 1 426.6 | 24.6 |
December | 254.6 | 25.5 |
Total | 2 869.6 | Ave. 25.8 |
Table 4. A list of fish taxa identified at the K. Besut fish landing site during two morning visits, showing the “trash” and other utilisable taxa. + indicates species included in the “trash”, and* indicates other utilisable species or larger size fish of these species in bulk
Taxon | “Trash” spp. $3/pic.* | Other utilisable taxa in case of “trash” shortage | |||
ca. $10/pic. | ca. $20/pic. | ||||
Aetobatidae | |||||
Aetobatus narinari | |||||
Aluteridae | |||||
Aluterius sp. | |||||
Ambassidae | |||||
Ambassid | 1 | + | |||
Apogonidae | |||||
Apogonid | 1 | + | |||
Apogonid | 2 | + | |||
Ariidae | |||||
Arius sp. | 1 | ||||
Arius sp. | 2 | ||||
Balistidae | |||||
Abalistes stellatis | |||||
Belonidae | |||||
Tylosurus sp. | |||||
Bothidae | |||||
bothid | 1 | + | |||
bothid | 2 | + | |||
bothid | 3 | + | |||
Carangidae | |||||
Alectis ciliaris | + (small) | * (medium) | |||
Alectis indicus | + (small) | * (medium) | |||
Atule sp. | + (small) | * (medium) | |||
Carangoides armatus | + (small) | * (medium) | |||
Carangoides malabaricus | + (small) | * (medium) | |||
Caranx alacate | |||||
Decapterus lajang | + (small) | * (medium) | |||
Decapterus russelli | + (small) | ||||
Decapterus sp. | + (small) | * (medium) | |||
Megalaspis cordyla | + (small) | * (medium) | |||
Selar boops | + (small) | * (medium) | |||
Selar crumenophthalmus | + (small) | * (medium) | |||
Selaroides leptolepis | + (small) | * (medium) | |||
Seriola nigrofasciata | |||||
Trachinotus baillonii | |||||
Carcharhinidae | |||||
Carcharhinus melanopterus | |||||
Carcharhinus sp. | |||||
Chirocentridae | |||||
Chirocentrus dorab | |||||
Clupeidae | |||||
Sardinella gibbosa | + (small) | * (medium) | * (large) | ||
Sardinella sirm | + (small) | * (medium) | * (large) | ||
Coryphaenidae | |||||
Coryphaena hippurus | |||||
Dactylopteridae | |||||
Dactylopteridae sp. | + | ||||
Dasyatidae | |||||
dasyatid | 1 | + (small) | * (medium) | ||
dasyatid | 2 | + (small) | * (medium) | ||
dasyatid | 3 | ||||
Eleotridae | |||||
eleotrid | 1 | + | |||
eleotrid | 2 | + | |||
Engraulidae | |||||
Stolephorus spp. | + | * | |||
Ephippidae | |||||
Ephippus orbis | |||||
Gerridae | |||||
gerrid | 1 | + (small) | |||
Gobiidae | |||||
gobiid | 1 | + | |||
gobiid | 2 | + | |||
gobiid | 3 | + | |||
Histiophoridae | |||||
Histioporus sp. | |||||
Labridae | |||||
Choerodon sp. | |||||
Lactariidae | |||||
Lactarius lactarius | + (small) | * (medium) | |||
Leiognathidae | |||||
leiognathid | 1 | + (small) | * (medium) | ||
leiognathid | 2 | + (small) | * (medium) | ||
leiognathid | 3 | + (small) | * (medium) | ||
Leiognathus sp. | + (small) | * (medium) | |||
Lutjanidae | |||||
Caesio erythrogaster | |||||
Lutjanus lineolatus | + (small) | ||||
Lutjanus russelli | |||||
Lutjanus sanguineus | + (small) | ||||
Lutjanus sebae | + (small) | ||||
Lutjanus vitta | + (small) | ||||
Pristipomoides typus | |||||
Monacanthidae | |||||
Monacanthus sp. | + (small) | ||||
Mullidae | |||||
Upeneus bensasi | + (small) | + (medium) | |||
Upeneus sulphureus | + (small) | + (medium) | |||
Upeneus sp. | + (small) | + (medium) | |||
Nemipteridae | |||||
Nemipterus japonicus | + (small) | ||||
Nemipterus tolu | + (small) | ||||
Pentapus setosus | + (small) | ||||
Scolopsis cancellatus | + (small) | ||||
Orectolobidae | |||||
orectolobid | 1 | ||||
Pentapodidae | |||||
Gymnocranius griseus | + (small) | ||||
Platacidae | |||||
Platax sp. | |||||
Platycephalidae | |||||
platycephalid | 1 | + (small) | |||
platycephalid | 2 | + (small) | |||
platycephalid | 3 | + (small) | |||
platycephalid | 4 | + (small) | |||
Platycephalus indicus | |||||
Pomadasyidae | |||||
Plectorhynchus pictus | |||||
Pomadasys hasta | + (small) | ||||
Priacanthidae | |||||
Priacanthus tayenus | + (small) | ||||
Psettodidae | |||||
Psettodes erumei | + (small) | ||||
Rachycentridae | |||||
Rachycentron canadus | |||||
Rhinobatidae | |||||
rhinobatid | 1 | ||||
Sciaenidae | |||||
Argyrosoma sp. | + (small) | * (4–6 in) | |||
Nibea sp. | + (small) | * (4–6 in) | |||
Sciaena johnius | + (small) | * (4–6 in) | |||
Scolopsidae | |||||
Scolopsis cancellatus | + (small) | ||||
Scomberomoridae | |||||
Scomberomorus commersoni | |||||
Scombridae | |||||
Enthynnus yaito | * (4–5 in) | * (6–7 in) | |||
Rastrelliger sp. | |||||
Scomberomoid | 1 | ||||
Cephalopoda | |||||
Squids | + (small) | ||||
Cuttlefishes | + (small) | ||||
Crustacea | |||||
Shovelnose lobster | + (small) | ||||
metapaenid shrimps | + (small) | ||||
crabs (2 families) | + (small) | ||||
Serranidae | |||||
Cephalopholis urodelus | |||||
Epinephelus areolatus | |||||
Epinephelus bleekeri | |||||
Epinephelus fasciatus | |||||
Epinephelus moara | |||||
Epinephelus sexfasciatus | |||||
Epinephelus tauvina | |||||
Siganidae | |||||
Siganus chrysospilos | |||||
Siganus oramin | + (small) | ||||
Sillaginidae | |||||
Sillago sihama | + (small) | ||||
Sphyraenidae | |||||
Sphyraena jello | + (small) | * (medium) | |||
Sphyraena obtusata | + (small) | * (medium) | |||
Synodontidae | |||||
Saurida sp. | + (small) | ||||
Tetraodontidae | |||||
tetraodontid | 1 | + (small) | |||
tetraodontid | 2 | + (small) | |||
Thunnidae | |||||
Thunnus tonggol | |||||
Trichiuridae | |||||
Trichiurus haumela | + (small) |
The following expenses will be needed to construct two rafts; each holding two 25' × 25' × 20' (1 × w × d) cages.
Rafts | ||||
(i) | Bamboo, length 35' | 40 pcs. | M$ | 80 |
(ii) | Galvanized iron wire, SWG #12 | 2 coils (160 kati) | 110 | |
(iii) | Empty oil drum, 46 gal. | 50 nos. | 750 | |
(iv) | Wooden plank, 15' × 8" × 1" | 20 pcs. | 75 | |
(v) | P.E. rope, 18 mm, for raft anchorage | 2 coils (400 m) | 400 | |
(vi) | Concrete weights for raft anchorage | 12 nos. | 140 | |
Cages | ||||
(i) | Nylon netting, knotless, 1" mesh | 50 kati | M$ | 500 |
(ii) | Nylon netting, knotless, 2" mesh | 50 kati | 500 | |
(iii) | P.E. rope for sewing & fixing cages, 4, 6, 8 mm | 2 coils | 300 | |
(iv) | Nylon twine, #12 | 4 coils | 20 | |
Equipment for fish transportation | ||||
(i) | Plastic round basin | 6 nos. | M$ | 30 |
(ii) | Aerator, battery operated; tubing and air-stones, etc. | 3 units, 100 ft., 12 nos. | 60 | |
Tools | ||||
(i) | Pliers, 8" | 4 nos. | M$ | 20 |
(ii) | Tape measure, 50 ft. | 1 no. | 15 | |
(iii) | Saw, hand | 2 nos. | 18 | |
(iv) | Spade | 2 nos. | 13 | |
(v) | Food blender | 1 no. | 40 | |
(vi) | Landing net | 4 nos. | 16 | |
Miscellaneous | ||||
Miscellaneous expenses | M$ | 200 | ||
Total estimated cost | M$ | 3,287 |
Records | Recording frequendy |
FACILITIES | |
Capital cost | Annual |
Maintenance costs and relating details | As and when incurred |
Replacement costs and relating details | As and when incurred |
Additional input | As and when incurred |
Depreciation | Annually estimated |
FEEDS AND FEEDING | |
Daily feeds administered, quantity and cost | Daily |
Transportation cost | Daily |
Fuel cost | Daily |
Maintenance of craft | As and when necessary |
Labour cost | Daily |
Other relating minor costs | Daily |
FISH STOCK | |
Cost of fish fry/fingerlings/juveniles | As and when incurred |
Mortality of these | As and when incurred |
Proceeds of sales of harvested fish | As and when incurred |
Disease treatment costs, including rejects | As and when incurred |
Transportation costs | As and when incurred |
Other relating minor costs | As and when incurred |
LABOUR | |
Relating to daily operations, all aspects and to be calculated down to number of
man-hours | Daily |
Personal daily living expenses of operator/owner | Daily or monthly |
Additional casual labour | As and when incurred |
LOSS | |
Any form of loss of facilities/fish stock | As and when incurred |
Species | Starting size (gm) | Estimated average daily weight increment (gm) |
Epinephelus fuscoguttatus (mottled grouper) | 150–200 | 2.0 – 2.5 |
Plectropomus spp. (seabasses) | 150–200 | 2.0 – 2.5 |
Lutjanus sanguineus (red snapper) | 150 | 2.0 – 2.5 |
L. sebae (emperor snapper) | 150–200 | 2.0 – 2.5 |
Caranx spp. (jacks) | 150–200 | 1.5 – 2.0 |
STATION 1 Depth: 1.7 m; Colour of water: Brown; Transparency: 1.0 m Time of observation: 1350 hours, sunny
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 29.2 | 5.8 | 74.4 | 5.0 | 7.49 |
1.0 | 30.0 | 7.2 | 93.5 | 5.5 | 7.30 |
1.5 | 30.0 | 7.2 | 93.5 | 15.0 | 7.80 |
STATION 2 Depth: 1.7 m; Colour of water: Green; Transparency: 1.0 m Time of observation: 1320 hours, sunny
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 31.0 | 8.1 | 108.0 | 31.5 | 8.02 |
1.0 | 31.0 | 8.0 | 106.7 | 31.0 | 8.10 |
1.5 | 31.0 | 8.0 | 106.7 | 32.0 | 8.10 |
STATION 3 Depth: 1.1 m; Colour of water: Brown; Transparency: 1 m Time of observation: 1425 hours
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 31.0 | 7.6 | 101.3 | 12.0 | 7.71 |
1.0 | 31.0 | 8.9 | 118.7 | 16.0 | 7.97 |
STATION 4 Depth: 2.1 m; Colour of water: Green; Transparency: 1.5 m Time of observation: 1515 hours, overcast
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 30.1 | 7.1 | 92.2 | 23.5 | 7.98 |
1.0 | 30.0 | 6.7 | 87.0 | 23.0 | 8.00 |
1.5 | 30.0 | 6.7 | 87.0 | 24.5 | 8.00 |
2.0 | 30.0 | 7.5 | 97.4 | 24.0 | 8.00 |
STATION 5 Depth: 2.5 m; Colour of water: Green; Transparency: 1.5 m Time of observation: 1530 hours, overcast
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 30.9 | 7.1 | 94.7 | 20.5 | 7.98 |
1.0 | 29.5 | 6.3 | 81.3 | 22.0 | 7.99 |
1.5 | 29.8 | 6.0 | 77.9 | 21.0 | 7.99 |
2.0 | 30.0 | 5.6 | 72.7 | 24.0 | 7.90 |
Station | Depth (m) | pH | Salinity (‰) | Temp. (°C) | Transparency (Secchi disc) |
I | 1.0 | 7.45 | 22.0 | 30.4 | All stations |
II | 1.0 | 7.60 | 21.0 | 30.5 | 0.5 m |
III | 1.0 | 7.75 | 20.0 | 30.6 | |
IV | 1.0 | 7.90 | 22.0 | 30.4 |
STATION A (Near mouth of mangrove channel)
Time of observation | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
1700 | 0.5 | 30.1 | 7.3 | 94.8 | 22.5 | 7.98 |
7/8/77 | 1.0 | 30.2 | 7.1 | 92.2 | 22.5 | 7.92 |
1945 | 0.5 | 29.9 | 7.4 | 96.1 | 22.5 | 7.99 |
7/8/77 | 1.0 | 30.0 | 6.5 | 84.4 | 23.5 | 7.99 |
0.5 | 29.4 | 6.1 | 78.7 | 22.0 | 7.72 | |
2345 | 1.0 | 30.0 | 5.7 | 74.0 | 22.5 | 7.78 |
7/8/77 | 1.5 | 30.0 | 5.0 | 64.9 | 22.0 | 7.80 |
0.5 | 28.4 | 5.1 | 65.0 | 25.0 | 6.81 | |
0400 | 1.0 | 28.8 | 5.1 | 65.4 | 24.5 | 6.80 |
8/8/77 | 1.5 | 28.7 | 5.2 | 66.7 | 24.0 | 6.88 |
2.0 | 28.8 | 5.1 | 65.4 | 24.0 | 6.90 |
STATION B (Centre of Lagoon)
Time of observation | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
1700 | 0.5 | 30.0 | 7.5 | 97.4 | 23.0 | 8.00 |
7/8/77 | 1.0 | 30.1 | 7.2 | 93.5 | 23.0 | 8.00 |
1945 | 0.5 | 29.9 | 7.1 | 92.2 | 22.0 | 8.00 |
7/8/77 | 1.0 | 30.1 | 6.5 | 84.4 | 23.0 | 7.97 |
2345 | 0.5 | 29.0 | 6.8 | 87.2 | 21.5 | 7.80 |
7/8/77 | 1.0 | 29.9 | 6.0 | 77.9 | 22.0 | 7.80 |
0400 | 0.5 | 28.7 | 5.0 | 63.2 | 24.0 | 6.70 |
8/8/77 | 1.0 | 29.0 | 5.1 | 65.4 | 24.0 | 6.78 |
STATION C (Proposed site for fish culture)
Time of observation | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
0.5 | 30.1 | 7.4 | 96.1 | 22.5 | 8.00 | |
1700 | 1.0 | 30.2 | 6.8 | 88.3 | 23.0 | 8.00 |
7/8/77 | 1.5 | 30.2 | 5.9 | 76.6 | 24.0 | 7.95 |
2.0 | 30.1 | 5.5 | 71.4 | 24.0 | 7.95 | |
0.5 | 30.0 | 7.0 | 90.9 | 22.0 | 8.00 | |
1945 | 1.0 | 30.2 | 6.6 | 85.7 | 22.5 | 7.99 |
7/8/77 | 1.5 | 30.3 | 6.2 | 80.5 | 22.0 | 7.90 |
2.0 | 30.4 | 5.9 | 77.6 | 22.0 | 7.99 | |
0.5 | 29.0 | 7.5 | 96.2 | 20.5 | 7.75 | |
2345 | 1.0 | 29.2 | 6.5 | 83.3 | 22.0 | 7.71 |
7/8/77 | 1.5 | 30.3 | 5.8 | 75.3 | 23.5 | 7.68 |
2.0 | 30.5 | 5.3 | 69.7 | 22.5 | 7.71 | |
0.5 | 28.4 | 6.1 | 77.7 | 22.5 | 6.80 | |
0400 | 1.0 | 28.8 | 5.9 | 75.6 | 23.0 | 6.83 |
8/8/77 | 1.5 | 28.9 | 5.9 | 75.6 | 23.5 | 6.90 |
2.0 | 29.0 | 5.6 | 71.8 | 23.5 | 6.90 | |
2.5 | 29.0 | 5.6 | 71.8 | 23.5 | 6.88 |
STATION 1 Depth: 3.0 m; Colour of water: yellowish-brown; Transparency: 0.5 m; Time of observation: 1115 hours, hazy sun
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 25.8 | 6.9 | 86.6 | 1.0 | 6.5 |
1.0 | 25.8 | 7.1 | 89.1 | 1.0 | 6.5 |
1.5 | 26.0 | 7.3 | 92.4 | 2.0 | 6.6 |
2.0 | 26.0 | 7.4 | 94.2 | 3.0 | 6.8 |
2.5 | 26.8 | 6.5 | 88.1 | 11.5 | 7.3 |
STATION 2 Depth: 2.5 m; Colour of water: Brownish-green; Transparency: 1.0 m; Time of observation: 1215 hours, hazy sun
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 28.5 | 8.1 | 119.7 | 21.0 | 7.7 |
Currents very strong beginning at 1.0 m. Measurement at other points had therefore to be omitted. |
STATION 3 Depth: 2.8 m; Colour of water: Dark-brown; Transparency: 0.5 m; Time of observation: 1240 hours, drizzling
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 29.0 | 8.6 | 128.1 | 21.0 | 7.8 |
1.0 | 29.0 | 8.2 | 121.4 | 21.0 | 7.9 |
1.5 | 29.0 | 8.4 | 125.9 | 22.0 | 7.9 |
2.0 | 29.0 | 9.2 | 145.3 | 30.0 | 8.1 |
2.5 | 29.0 | 9.3 | 146.7 | 30.0 | 8.1 |
STATION 4 Depth: 3 m; Colour of water: Dark-brown; Transparency: 0.5 m Time of observation: 1305 hours, raining
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 27.5 | 9.2 | 132.1 | 19.0 | 7.6 |
1.0 | 28.0 | 8.2 | 119.0 | 19.5 | 7.7 |
1.5 | 27.3 | 7.9 | 114.1 | 21.5 | 7.9 |
2.0 | 28.3 | 8.9 | 131.9 | 22.0 | 8.0 |
2.5 | 28.5 | 8.8 | 130.1 | 22.0 | 7.9 |
STATION 5 Depth: 3.2 m; Colour of water: Dark-brown; Transparency: 1.0 m Time of observation: 1320 hours, raining heavily
Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | ||||
0.5 | 27.4 | 8.4 | 114.7 | 11.0 | 114.7 |
1.0 | 28.3 | 7.1 | 103.9 | 20.0 | 103.9 |
1.5 | 28.5 | 7.3 | 106.4 | 20.0 | 106.4 |
2.0 | 28.8 | 8.6 | 133.7 | 29.0 | 133.7 |
2.5 | 28.8 | 8.6 | 134.5 | 29.0 | 134.5 |
STATION A (Near mouth of mangrove channel)
Time of observation | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
1415 | 0.5 | 26 | 5.1 | 68.62 | 12.5 | 7.5 |
13/11/77 | 1.0 | 29 | 5.0 | 74.00 | 20.0 | 7.8 |
1.5 | 29 | 5.4 | 80.93 | 22.0 | 7.9 | |
2.0 | 29 | 5.8 | 89.20 | 26.0 | 8.0 | |
0.5 | 28.0 | 8.3 | 116.48 | 14.0 | 7.4 | |
1345 | 1.0 | 28.4 | 7.8 | 116.52 | 22.0 | 8.1 |
14/11/77 | 1.5 | 28.5 | 7.2 | 107.05 | 22.0 | 8.1 |
2.0 | 28.9 | 8.1 | 126.43 | 28.5 | 8.2 | |
0.5 | 29.2 | 8.0 | 115.87 | 16.0 | 7.4 | |
1445 | 1.0 | 28.8 | 7.7 | 110.81 | 16.0 | 7.3 |
15/11/77 | 1.5 | 29.0 | 7.7 | 115.41 | 22.0 | 7.9 |
2.0 | 29.0 | 8.2 | 124.93 | 25.5 | 8.0 | |
2.5 | 29.0 | 8.3 | 129.41 | 29.0 | 8.0 | |
0.5 | 28.3 | 8.3 | 113.60 | 10.0 | 7.3 | |
1805 | 1.0 | 28.5 | 7.3 | 106.50 | 19.0 | 7.6 |
15/11/77 | 1.5 | 28.5 | 7.8 | 114.50 | 21.0 | 7.7 |
2.0 | 28.5 | 8.6 | 132.94 | 28.0 | 7.9 | |
2.5 | 28.5 | 7.3 | 112.81 | 29.0 | 7.9 | |
0.5 | 27.9 | 7.2 | 100.88 | 14.0 | 7.4 | |
2110 | 1.0 | 28.2 | 7.1 | 101.19 | 16.0 | 7.5 |
15/11/77 | 1.5 | 28.4 | 7.2 | 104.23 | 18.0 | 7.5 |
2.0 | 28.5 | 7.4 | 107.96 | 19.0 | 7.6 | |
2.5 | 28.5 | 7.6 | 114.45 | 24.0 | 7.8 | |
0.5 | 27.0 | 9.2 | 133.48 | 22.0 | 7.8 | |
0030 | 1.0 | 27.2 | 9.2 | 133.92 | 22.0 | 7.9 |
16/11/77 | 1.5 | 27.3 | 9.4 | 137.93 | 23.0 | 7.8 |
2.0 | 27.3 | 9.2 | 135.00 | 23.0 | 7.8 | |
2.5 | 27.5 | 9.4 | 139.28 | 24.0 | 7.8 | |
0.5 | 27.0 | 8.4 | 121.87 | 22.0 | 7.1 | |
0300 | 1.0 | 27.0 | 8.8 | 127.67 | 22.0 | 7.2 |
16/11/77 | 1.5 | 27.2 | 8.6 | 125.18 | 22.0 | 7.3 |
2.0 | 27.3 | 9.5 | 138.51 | 22.0 | 7.4 | |
2.5 | 27.4 | 9.7 | 141.66 | 22.0 | 7.3 |
STATION B (Centre of Lagoon)
Time of observation | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
0.5 | 26.5 | 6.0 | 85.25 | 20.0 | 7.8 | |
1400 | 1.0 | 28.0 | 5.2 | 75.73 | 20.0 | 7.9 |
13/11/77 | 1.5 | 28.0 | 5.6 | 85.86 | 28.0 | 8.1 |
2.0 | 27.5 | 6.5 | 97.56 | 26.0 | 8.1 | |
0.5 | 28.0 | 8.5 | 117.86 | 12.0 | 7.7 | |
1340 | 1.0 | 28.3 | 7.9 | 112.06 | 16.0 | 7.7 |
14/11/77 | 1.5 | 28.4 | 7.5 | 113.49 | 25.0 | 8.3 |
2.0 | 28.8 | 8.7 | 135.13 | 28.0 | 8.2 | |
1505 | 0.5 | 29.2 | 8.5 | 120.18 | 13.0 | 7.4 |
15/11/77 | 1.0 | 29.0 | 7.7 | 114.68 | 21.0 | 7.7 |
1.5 | 29.0 | 7.5 | 108.89 | 18.0 | 7.5 | |
1745 | 0.5 | 27.2 | 7.9 | 108.74 | 14.0 | 7.4 |
15/11/77 | 1.0 | 28.5 | 7.1 | 104.24 | 20.0 | 7.6 |
1.5 | 28.5 | 7.9 | 118.98 | 25.0 | 7.8 | |
2105 | 0.5 | 27.5 | 8.0 | 110.69 | 13.0 | 7.5 |
15/11/77 | 1.0 | 28.0 | 7.8 | 109.47 | 14.0 | 7.5 |
1.5 | 28.4 | 7.8 | 112.91 | 18.0 | 7.6 | |
0.5 | 27.0 | 9.2 | 131.80 | 20.0 | 7.8 | |
0010 | 1.0 | 27.3 | 9.3 | 134.01 | 21.0 | 7.9 |
16/11/77 | 1.5 | 27.3 | 9.5 | 137.78 | 22.0 | 7.9 |
2.0 | 27.5 | 9.5 | 139.86 | 23.0 | 7.9 | |
2.5 | 27.5 | 9.5 | 139.86 | 23.0 | 7.9 | |
0.5 | 27.0 | 8.7 | 122.38 | 18.0 | 6.9 | |
0245 | 1.0 | 27.3 | 9.2 | 131.73 | 20.0 | 7.0 |
16/11/77 | 1.5 | 27.2 | 9.5 | 137.41 | 21.0 | 7.2 |
2.0 | 27.3 | 9.3 | 135.60 | 22.0 | 7.2 |
STATION C (Proposed site for fish culture)
Time of observation | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
0.5 | 26.0 | 5.9 | 79.39 | 12.5 | 7.5 | |
1330 | 1.0 | 28.0 | 5.9 | 85.38 | 19.0 | 7.8 |
13/11/77 | 1.5 | 28.0 | 6.8 | 101.58 | 24.0 | 7.9 |
2.0 | 28.0 | 7.1 | 108.86 | 28.0 | 8.1 | |
2.5 | 27.5 | 7.5 | 114.06 | 28.0 | 8.1 | |
0.5 | 27.4 | 8.4 | 114.66 | 11.0 | 7.3 | |
1320 | 1.0 | 28.3 | 7.1 | 103.90 | 20.0 | 7.8 |
14/11/77 | 1.5 | 28.5 | 7.3 | 106.44 | 20.0 | 7.9 |
2.0 | 28.8 | 8.6 | 133.69 | 29.0 | 8.3 | |
2.5 | 28.8 | 8.6 | 134.47 | 29.0 | 8.4 | |
0.5 | 28.9 | 8.8 | 124.55 | 13.0 | 7.5 | |
1.0 | 28.9 | 8.5 | 124.04 | 18.0 | 7.7 | |
1520 | 1.5 | 28.5 | 8.0 | 118.19 | 21.0 | 7.8 |
15/11/77 | 2.0 | 28.5 | 9.1 | 139.74 | 27.0 | 8.0 |
2.5 | 28.5 | 9.3 | 145.68 | 30.0 | 8.0 | |
0.5 | 27.4 | 9.2 | 127.86 | 14.0 | 7.3 | |
1745 | 1.0 | 28.5 | 7.5 | 108.07 | 17.0 | 7.5 |
15/11/77 | 1.5 | 28.5 | 7.7 | 113.40 | 20.5 | 7.7 |
2.0 | 28.5 | 8.8 | 131.77 | 24.0 | 7.9 | |
2.5 | 28.5 | 8.9 | 136.80 | 28.0 | 8.0 | |
0.5 | 28.0 | 8.3 | 115.09 | 12.0 | 7.4 | |
2050 | 1.0 | 28.4 | 7.4 | 105.09 | 16.0 | 7.6 |
15/11/77 | 1.5 | 28.5 | 7.4 | 107.96 | 19.0 | 7.6 |
2.0 | 28.5 | 7.7 | 113.74 | 22.0 | 7.7 | |
2.5 | 28.5 | 7.6 | 114.45 | 24.0 | 7.8 | |
0.5 | 27.0 | 9.1 | 127.17 | 16.0 | 7.7 | |
2345 | 1.0 | 27.2 | 9.2 | 130.70 | 19.0 | 7.8 |
15/11/77 | 1.5 | 27.5 | 9.2 | 134.58 | 22.0 | 7.9 |
2.0 | 27.5 | 9.3 | 135.18 | 21.0 | 7.9 | |
2.5 | 27.5 | 9.4 | 136.64 | 21.0 | 7.9 | |
3.0 | 27.5 | 9.4 | 137.50 | 22.0 | 7.9 | |
0.5 | 27.0 | 8.1 | 115.32 | 19.0 | 7.1 | |
0220 | 1.0 | 27.5 | 8.9 | 128.56 | 20.0 | 7.2 |
16/11/77 | 1.5 | 27.2 | 9.4 | 135.24 | 21.0 | 7.4 |
2.0 | 27.2 | 9.9 | 142.47 | 21.0 | 7.5 | |
2.5 | 27.3 | 9.4 | 137.05 | 22.0 | 7.6 |
Station | Depth (m) | Temp. (°C) | Dissolved Oxygen (DO) | Salinity (‰) | pH | |
(ppm) | (% Saturation) | |||||
I | 0.5 | 27.2 | 5.4 | 71.6 | 6.0 | 5.9 |
II | 0.5 | 27.3 | 3.8 | 51.5 | 10.0 | 6.3 |
III | 0.5 | 27.8 | 5.4 | 74.4 | 13.0 | 6.9 |
IV | 0.5 | 28.0 | 8.3 | 126.4 | 14.0 | 7.4 |
Table 14. Catch record of beach seine operation
Date | 18/9 | 20/9 | 21/9 | 22/9 | 24/9 | 25/9 | 26/9 | 27/9 | 28/9 | 3/10 | Total |
Site code | (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | |
Number of hauls | 3 | 5 | 9 | 7 | 7 | 5 | 4 | 6 | 4 | 2 | |
Salinity (‰) | 18.00 | 16.00 | 16.00 | 21.00 | 20.00 | 21.00 | 20.00 | 24.00 | 25.00 | 22.00 | 52 |
Species | |||||||||||
Epinephelus tauvina | 13 | 9 | 51 | 11 | 31 | 5 | 11 | 43 | 10 | 1 | 185 |
Lutjanus argentimaculatus | 2 | 2 | 5 | 9 | 3 | 2 | 4 | 5 | 21 | 54 | |
Lutjanus russelli | 15 | 66 | 124 | 82 | 39 | 39 | 26 | 99 | 81 | 43 | 614 |
Lates calcarifer | / | 1 | 16 | 1 | 4 | 10 | 13 | 1 | / | / | 46 |
Lethrinus nebulosus | 41 | 36 | 84 | 165 | 46 | 35 | 72 | 80 | 384 | 518 | 1 461 |
Total | 71 | 114 | 280 | 268 | 123 | 91 | 126 | 228 | 496 | 562 | 2 360 |
Item | Quantity | Cost (M$) |
RAFT (overall 8 m × 4.5 m) | 3 | |
Bamboo poles (10–13 cm in diameter) | 30 pcs. 11 m long at | 60 |
44-gal. oil drum | 30 nos. | 150 |
Galvanized iron wire | 50 kg | 55 |
Wooden planks (2.5 cm × 20 m × 3 m) | 9 pcs. | 32 |
CAGE (4 nos. of 1.8 m × 1.8 m × 1.8 m and 8 nos. of 3 m × 3 m × 2.1 m) | 12 | |
Nylon netting, 1.27 cm | 65 m2 | 200 |
Nylon netting, 1.6 cm and 5 cm | 130 m2 | 350 |
Nylon twine and ropes | 150 | |
Galvanized water pipes 1.27 cm | 70 m | 60 |
Elbow joints for Galvanized water pipes | 32 nos. | 15 |
ANCHORAGE | ||
Concrete weights | 12 nos. | 140 |
Nylon rope, 18 mm | 180 m | 200 |
TOOLS | ||
Pliers, 20 cm | 4 nos. | 20 |
Tape measure, 15 m | 1 no. | 15 |
Saw, hand | 2 nos. | 18 |
Spade | 2 nos. | 13 |
Food blender | 1 no. | 40 |
Landing net | 4 nos. | 16 |
Total | M$ 1 534 |