A manual on Techniques and Methodology for Freshwater Pearl Culture in Bangladesh was prepared and is included in this report as Appendix 1. It was based on the experience acquired during the implementation of the Pearl Culture Project at Mymensingh - FAO/TCP/4508. It was presented in a simple manner so that it will be easily understood by the intended readers who are rural farmers.
Month | Quantity Operated On | Mortality (After two weeks) | Balance |
September | 195 pcs | 98 pcs | 97 pcs |
October | 839 | 318 | 521 |
November | 637 | 181 | 456 |
December | 444 | 81 | 363 |
January | 207 | 76 | 131 |
February | 740 | 125 | 615 |
March | 509 | 63 | 446 |
April | 610 | 171 | 439 |
May | 582 | 218 | 364 |
June | 116 | 29 | 87 |
TOTAL | 4 879 | 1 360 | 3 519 |
Month | Quantity Operated On | Mortality (After two weeks) | Balance | |
September | 8 pcs | } | 2 pcs | 6 pcs |
October | 108 | } | 27 | 81 |
November | 83 | } 1 | 9 | 74 |
December | 18 | } | 1 | 17 |
January | 68 | } | 10 | 58 |
February | 106 | } | 8 | 98 |
March | 69 | } | 4 | 65 |
April | 230 | } | 55 | 175 |
May | 293 | } 2 | 122 | 171 |
June | 87 | } | 20 | 67 |
1 070 pcs | 258 pcs | 812 pcs |
Note: 1 Seed pearls on mantle
2 Two nuclei in gonad
Month | Quantity Operated on | Mortality (After two weeks) | Balance |
September | 35 | 12 | 23 |
October | 299 | 74 | 225 |
November | 258 | 85 | 173 |
December | 219 | 61 | 158 |
January | 94 | 50 | 44 |
February | 202 | 40 | 162 |
March | 236 | 32 | 204 |
April | 219 | 71 | 148 |
May | 131 | 30 | 101 |
TOTAL | 1 693 | 455 | 1 238 |
Month | Quantity Operated On | Mortality (After two weeks) | Balance |
September | 62 | 44 | 18 |
October | 249 | 144 | 105 |
November | 129 | 65 | 64 |
December | 197 | 13 | 184 |
January | 45 | 16 | 29 |
February | 284 | 50 | 234 |
March | 178 | 26 | 152 |
April | 161 | 45 | 116 |
May | 151 | 63 | 88 |
TOTAL | 1 456 | 466 | 990 |
Month | Quantity Operated On | Mortality (After two weeks) | Balance |
September | 90 | 40 | 50 |
October | 183 | 73 | 110 |
November | 167 | 22 | 145 |
December | 10 | 6 | 4 |
January | 148 | 27 | 121 |
February | 24 | 1 | 25 |
June | 7 | 1 | 6 |
TOTAL | 631 | 170 | 461 |
Trainee | Mark | Number of Mussels Operated On | Balance1 Alive | |||
30/6 | 1/7 | 2/7 | 3/7 | |||
Sayed Ayesha Begum | A | 12 | 17 | 13 | 22 | 2 |
Guleka Khatun | B | 6 | 13 | 10 | 10 | 3 |
Fatima Begum | C | 9 | 20 | 22 | 29 | 26 |
Rajia Begum | D | 8 | 15 | 13 | 23 | 9 |
Khodeja Khatum | E | 16 | 11 | 7 | 16 | 5 |
Promila Rani Bonmon | F | 10 | 15 | 16 | 17 | 25 |
Md. Abdul Kader | G | 13 | 36 | 18 | 12 | 22 |
Md. Mosa Mia | H | 8 | 25 | 20 | 33 | 19 |
Samsun Naher | I | 9 | 18 | 20 | 16 | 2 |
Jahura Khanum | J | 8 | 23 | 21 | 11 | 10 |
Sujid Kumer Bonmon | K | 8 | 14 | 13 | 12 | 12 |
Minara Begum | L | 13 | 31 | 24 | 34 | 4 |
Firoza Begum | M | 10 | 20 | 20 | 31 | 2 |
Hajana Begum | N | 12 | 13 | 17 | 20 | 1 |
Farida Yamin | O | 6 | 20 | 22 | 30 | 16 |
Fatema Katun | P | 5 | 12 | 13 | 16 | 9 |
Sub-total | 153 | 303 | 269 | 332 | 167 | |
Total: | 1 057 |
1 Balance of surviving mussels after 17 July 1986
Trainee | Mark | Number of Mussels Operated On | Balance1 Alive | |||
28/7 | 29/7 | 30/7 | 31/7 | |||
Ms Anzali Pal | A7 | 12 | 20 | 10 | 14 | 7 |
Ms Shahana Azad | B7 | 10 | 20 | 8 | 16 | 1 |
Ms Rawshawn Ara Razzak | C7 | 16 | 24 | 9 | 16 | 40 |
Asma Aktar | D7 | 5 | 15 | 5 | 10 | 4 |
Mahabubur Rahman | E7 | 7 | 15 | 8 | 10 | 7 |
A.M.B. Ataur Nahman | F7 | 8 | 15 | 8 | 15 | 23 |
Ms Laila Parvin | G7 | 7 | 13 | 0 | 18 | 22 |
Kumrun Jahan Mustari | H7 | 15 | 16 | 7 | 16 | 21 |
Kandaker Shafiqul Islam | I7 | 13 | 11 | 0 | 16 | 26 |
Salina Parvin | J7 | 17 | 31 | 12 | 12 | 39 |
Salma Sultana | K7 | 12 | 37 | 6 | 20 | 20 |
Taposi Rani Sarker | L7 | 15 | 20 | 8 | 10 | 1 |
Satya Ranjon Aich Mojumder | M7 | 10 | 23 | 12 | 20 | 34 |
Siddiqur Rahman | N7 | 15 | 20 | 3 | 26 | 45 |
Aynul Hoq | O7 | 10 | 21 | 10 | 21 | 17 |
Sub-total | 172 | 301 | 106 | 240 | 307 | |
Total | 819 |
1 Balance of surviving mussels on 14 August 1986
Diagram 1 - The Culture Pond
Map 1 Pearl Culture Farm
Graph 1 Water Temperature Readings (taken at pond no. 59 - surface - 08.00–09.00 h)