Size at Maturity and Apawning Periodicity of the Mud Crab scylla serrata (Forskal) in the Negombo Estuary (Record no. 9698)
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| 000 -LEADER | |
|---|---|
| fixed length control field | nam a22 7a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20190127085854.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 181214b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | NARA |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 17955 |
| Personal name | Jayamanne, S.C. |
| 245 ## - TITLE STATEMENT | |
| Title | Size at Maturity and Apawning Periodicity of the Mud Crab scylla serrata (Forskal) in the Negombo Estuary |
| 260 ## - PUBLISHER, DISTRIBUTION, ETC. | |
| Date of publication, distribution, etc. | 1993 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 141-152p. |
| 440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE | |
| 9 (RLIN) | 17956 |
| Title | Journal of National Science Council |
| Number of part/section of a work | Vol.21.No.1 |
| 505 ## - FORMATTED CONTENTS NOTE | |
| Formatted contents note | Some aspects of reproductive biology of the mud crab; Scylla scrrntn in the Negombo estuary were studied by screening bi-weekly samples over a period of one year. The study revealed that the size of the female crab at first maturity was 12 cm and the estimated pre-spawning and post-spawning fecundities were around 3 and 1.5 million respectively. The ova mature at the size of about 300 /<m and are found in three batches indicating a partial spawning behaviour. Spawning occurs in two seasons, April and August. The sex ratio was uneven in most size groups and in most months of the year. About 85% of the commercial catches comprise immature females.<br/> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Research Papers |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Inventory number | Total Checkouts | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NARA Main Library | NARA Main Library | Ready Reference | 27.01.2019 | RP0209 | RP0209 | 27.01.2019 | RP0209 | 27.01.2019 | Research Papers |